2018 Audi A8 Quattro Ignition and Tune-Up Products

Name: Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition
Brand: Autolite Iridium
SKU: XP5224
Price: 9.99 USD

Below you will find various in-demand Audi Ignition and Tune-Up Products, components and accessories for your 2018 A8 Quattro. Advance Auto Parts has popular A8 Quattro parts like Ignition Coils and Boots Spark Plugs and more. You’ll also find aftermarket and OEM Ignition and Tune-Up Products for other A8 Quattro model years including 2014, 2015, 2016, 2017, 2019, 2020, 2021, 2022, 2023 and more. Select a category of 2018 Audi A8 Quattro Ignition and Tune-Up Products below and start saving instantly.

Popular 2018 Audi A8 Quattro Ignition and Tune-Up Products Categories

Spark Plugs

Ignition Coils

Ignition Coil Connectors

Essential Ignition and Tune-Up Products for 2018 Audi A8 Quattros

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$9.99

Our best spark plug! Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Product Features:

0.6 mm finewire design improves ignitability
Patented V-trimmed platinum sidewire technology resists wear
OE equivalent design is engineered for every engine
Designed for better overall durability with virtually no gap erosion
Double Iridium-Enhanced Alloy Technology Center Electrode: Offers improved durability and wear resistance for a longer-lasting spark plug.
Designed and Engineered in the USA: Reflects over 100 years of Autolite’s engineering experience and expertise.
Gasket Seat Type: Ensures a secure and proper fit for optimal performance.

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$5.49

OE Performance, lasts 30K+ Miles, K20PBR-S10. The unique U-Groove ground electrode is one of the finest features of DENSO spark plugs, developed to meet the demand for improved ignitability, necessary for increased efficiency in emission gas purification and fuel consumption. This OEM specified special ground electrode configuration, combined with precision machine-rolled threads, reduces seizing and cross-threading in delicate aluminum heads. With a wide range of part numbers for thousands of applications, including classic and collector cars, these spark plugs last twice as long as most conventional plugs and are 100% pre-fired to assure reliable operation. The center electrode tip is made of durable nickel, and the flat seat type ensures a secure fit.

Product Features:

OEM specified special ground electrode configuration
Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
Wide range of part numbers for thousands of applications, including classic and collector cars
Lasts twice as long as most conventional plugs
100% pre-fired to assure reliable operation
U-Groove Conventional
Durable Nickel Center Electrode Tip: Ensures long-lasting performance and reliability, with a lifespan of over 30,000 miles.

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$12.99

NGK Laser Platinum spark plugs provide high ignitability and longer service life compared to conventional nickel spark plugs. Laser Platinum plugs are tested to the highest standards to ensure quality and durability. Engineered specifically for OE applications. Laser platinum plugs provide stable idling, superior anti-fouling, improved fuel efficiency and lower emissions. High-grade pure alumina ceramic and 98% pure copper core prevents spark plug from overheating and provides reliable starts. Most Laser Platinum spark plugs feature a platinum pad on the ground electrode for even wear in distributorless ignition systems.

Product Features:

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire platinum alloy center electrode provides consistent performance
PLATINUM ALLOY CENTER ELECTRODE: Longer wearing and higher temperature resistance compared to traditional nickel spark plugs
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE platinum alloy multi-ground electrode plugs
High Ignitability and Longer Service Life: NGK Laser Platinum spark plugs offer superior ignitability and extended service life compared to conventional nickel spark plugs.
Engineered for OE Applications: Specifically designed for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
Enhanced Fuel Efficiency and Lower Emissions: These spark plugs contribute to improved fuel efficiency and reduced emissions, making them an eco-friendly choice.
Superior Anti-Fouling and Stable Idling: The advanced design provides stable idling and superior resistance to fouling, ensuring consistent engine performance.

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$2.79

U-Groove design provides better ignitability for increased engine efficiency.

Product Features:

Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
Wide range of part numbers for thousands of applications, including classic and collector cars
Lasts twice as long as most conventional plugs
100% pre-fired to assure reliable operation
U-Groove Conventional

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$6.99

Motorcraft Spark Plugs are original equipment on Ford Motor Company vehicles, engineered to meet strict Ford engineering standards for performance and reliability. These spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption, and optimize emissions. With a platinum center and ground electrode tip, they are resistant to oxidation and arc erosion, ensuring long-lasting performance. The multi-rib insulator protects against misfires, and they are backed by Motorcraft’s Service Parts Warranty. Designed for exact fit in Ford, Lincoln, and Mercury vehicles, these spark plugs also help prevent false check engine lights and offer service intervals of up to 100,000 miles. Crafted with high-quality materials, Motorcraft Spark Plugs deliver reliable performance for a broad range of applications, including domestic and import cars and trucks of all makes and sizes.

Product Features:

Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
Backed by Motorcraft’s Service Parts Warranty
Exact fit for Ford, Lincoln and Mercury vehicles
Resistant to oxidation and arc erosion.
Multi-rib insulator protects against misfire.
Service intervals of up to 100,000 miles.
Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
Motorcraft ignition components help prevent false check engine lights.
Enhanced Durability: Engineered to meet strict Ford engineering standards, these spark plugs are designed to provide long-lasting performance with a platinum center and ground electrode tip that resist oxidation and arc erosion.

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$21.99

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire platinum alloy center electrode provides consistent performance
PLATINUM ALLOY CENTER ELECTRODE: Longer wearing and higher temperature resistance compared to traditional nickel spark plugs
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE fine wire platinum alloy plugs

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$11.12

The NGK Standard copper core spark plug provides OEM quality, consistent performance and extended long life.

Product Features:

Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
Corrugated Ribs Prevent Flashover
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Copper Core Aids in Heat Removal
Triple Seals Prevent Leakage

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$15.31

DENSO Iridium Power spark plugs represent a performance breakthrough. The laser-welded center electrode is only 0.4mm in diameter – the slimmest iridium electrode in the industry. The taper-cut side electrode complements the design, delivering reliable spark energy under the most gruelling pressures and temperatures. DENSO engineers used the power of this miraculous metal to produce an iridium center electrode that is only 0.4mm in diameter. With its superior thermal qualities, this whisker-fine electrode is capable of taking the most extreme heat and punishment. This breakthrough was matched to one of DENSO’s most famous innovations, the patented U-Groove ground electrode. The combination of these two features resulted in the Iridium Power® plug, one of the most advanced and innovative spark plugs on the market.

Product Features:

Tapered cut, U-Groove ground electrode
0.4mm iridium center electrode
360-degree laser welding assembly process
Required ignition voltage reduced
Unsurpassed center electrode durability
Available for many performance and power sports applications, including Corvette, Viper, and Harley-Davidson The Iridium Power plug delivers greater spark energy while demanding significantly less secondary required voltage from the ignition system.

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$10.99

Durability of an OE style plug combined with Power & Torque of high performance.

Product Features:

0.4mm Iridium Center Electrode: World’s Smallest Diameter that maximizes firing potential
0.7mm Needle Tip Ground Electrode: Promotes higher spark energy and less heat quenching
DENSO Patented Optimized Iridium-Rhodium Alloy Formula: Highest concentration of Iridium vs. competitors for greater durability
DENSO Patented 360 degree laser welding process: Ensuring exceptional quality bond and structural strength with the Iridium Center Electrode
Durability of an OE style plug combined with Power & Torque of high performance.
Withstands temperatures greater than 4000░ Fahrenheit
Iridium TT
Ultimate Endurance and Power: The DENSO Iridium TT Spark Plug features a 0.7mm Iridium Tip, ensuring over 100,000 miles of uncompromised performance.
Advanced Twin-Tip Technology: Developed from Original Equipment Specification Super Ignition Plug (SIP) design, combining a Fine Wire Iridium Center Electrode with a Needle Tip Platinum Ground Electrode.
Enhanced Fuel Economy and Lower Emissions: Drive around the Earth over 4 times with improved fuel efficiency and reduced emissions.
Premium Materials: Features an Iridium Center Electrode Tip and a Flat Seat Type for optimal performance and durability.

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$19.99

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:

Premium quality materials for longer service life
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$25.99

Premium quality materials for longer service life
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$31.49

WVE is a leading source of advanced vehicle electronics components for replacement applications in the automotive aftermarket and original equipment applications. WVE offers high-technology manufacturing along with innovative solutions and improvements to

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$46.52

Ign. Coil Connector

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$37.64

Kit Contains: 4) High Temperature Leads and Terminal – Pre-Assembled in an OE Type Connector. 4) Heat Shrink Butt Connectors. 1) Terminal Extractor Tool. Failed or Burned Up V with Audi Coils are Most Commonly Caused By Poor Electrical Connections, Wire Harness Breaks or Fouled Spark Plugs. Ignition Coil Harness/Connector Repair Kit Contains: 4) High Temperature Leads and Terminal – Pre-Assembled in an OE Type Connector. 4) Heat Shrink Butt Connectors. 1) Terminal Extractor Tool. Failed or Burned Up V with Audi Coils are Most Commonly Caused By Poor Electrical Connections, Wire Harness Breaks or Fouled Spark Plugs.

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$41.49

Carquest Premium ignition coils meet or exceed original equipment (OE) specifications and are developed by top OE/OES manufacturers to ensure superior performance. All of our Carquest Premium ignition coils are developed by IATF 16949 certified manufacturers for consistent durability and long-lasting performance. These ignition coils use high-quality components and will utilize optimized designs on applications where the OE ignition coil had frequent failures. We require stringent testing standards to ensure proper fit and performance for each application and stand behind our Carquest Premium ignition coils with an industry-leading warranty. Carquest Premium ignition coils are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.

Product Features:

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
Extensive design validation testing to ensure long-lasting reliability
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

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$45.43

The BREMI Ignition Coil is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment it replaces.

Product Features:

OE-Equivalent and a direct fit application
Meets or exceeds the OE specifications for durability and performance
High profile insulation to prevent arching.
Radio-Frequency Interference (RFI) Suppression
Engineered to withstand extremes in temperatures

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$56.90

The BREMI Ignition Coil is a direct fit OEM replacement that contains the same high quality craftsmanship and materials as the original equipment it replaces.

Product Features:

OE-Equivalent and a direct fit application
Meets or exceeds the OE specifications for durability and performance
High profile insulation to prevent arching.
Radio-Frequency Interference (RFI) Suppression
Engineered to withstand extremes in temperatures

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$48.99

Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:

Matches OE form, fit and function
Made from premium materials to withstand high temperatures
Primary and secondary windings made from copper
Out of the box and straight onto the vehicle for easy installation
Application specific for this vehicle

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$54.99

NGK ignition coils are manufactured to meet or exceed OE standards for the highest durability and operational performance, so they can be installed with confidence. NGK and their family of automotive products have over 80 year’s experience and are driven by extreme dedication to innovation, performance and quality. Developed and rigorously tested in our ISO 17025 accredited test lab under the most extreme conditions, NGK’s coil designs will outperform all others – far beyond operational environments a vehicle would actually experience

Product Features:

OE QUALITY: Vacuum-sealed premium epoxy resin and thermoplastic coil housings provide superior dielectric strength, voltage insulation and durability
OPTIMAL PERFORMANCE: Precision coil windings and laminations maximize outputs, custom NGK ASIC chipset optimizes efficiency, prevents component damage
EASE OF INSTALLATION: NGK Ignition Coils include ignition control module, premium high temperature coil boot, and jumper harnesses where required
THE NGK DIFFERENCE: Featuring superior materials and design enhancements.
EXTENSIVE TESTING: NGK ignition coils must pass extreme testing during manufacturing to ensure the highest quality and durability standards are met
PRODUCT ENGINEERING: Advanced flow and stress modeling systems preemptively identify and avoid common failure points found in OE and competitor coils

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$49.49

As the innovator and leader in stick coil technology, DENSO has conducted superior testing and inspection processes to insure the highest quality ignition coil. Don’t be fooled by imitations – look for the DENSO name to be sure you’re getting the best.

Product Features:

First Time Fit
Built to DENSO Original Equipment Standards

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$73.60

ORIGINAL EQUIPMENT QUALITY & HERITAGE NGK Coil-On-Plug or Pencil Coil designs provide energy for a single spark plug and requires as many coils as there are cylinders. NGK ignition coils, like our spark plugs, are manufactured to OE standards for the highest durability and operational performance, so they can be installed with OE confidence. Our coil designs are developed and proven tough in our ISO 17025 accredited test lab at extreme conditions that are far beyond any operational environment that a vehicle would experience.

Product Features:

OE-Equivalent and a direct fit application
Meets or exceeds the OE specifications for durability and performance
High profile insulation to prevent arching
Radio-Frequency Interference (RFI) Suppression
Engineered to withstand extremes in temperatures

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$34.99

Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure confidence and product reliability, every time.

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$47.82

Delphi ignition coils feature precise spark timing response for increased fuel economy and faster crank-to-run. The ignition coils provide accurate electrical energy to create a voltage potential at the spark plug, providing for superior engine performance that adjusts to driving and environment conditions. Plus, like all Delphi ignition system components, they enable engine management systems to maintain tighter control over emissions, economy and performance.

Product Features:

Improved dwell accuracy decreases module and coil temperatures for greater reliability
Noise abatement material between laminations reduces audible coil noise
Cassettes have improved primary connector for greater ease of assembly compared to designs with one connector for each coil
Lower primary inductance provides high-speed performance
Early and precise electronic spark timing helps improve fuel economy and provides faster crank-to-run
Higher energy delivered to combustible mixture provides cleaner combustion to help manufacturers meet on-board diagnostics (OBD II) requirements
Direct connection to spark plugs (via small boot) eliminates spark plug wires
Composite iron coils provide programmable energy
Coil per cylinder dwell overlap electronics deliver better high speed performance and better heat dissipation compared to some conventional technologies
Coil per cylinder ramp and fire electronics decrease power dissipation and increase efficiency
Radio frequency interference (RFI) suppressor optional

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$78.99

OE QUALITY: Vacuum-sealed premium epoxy resin and thermoplastic coil housings provide superior dielectric strength, voltage insulation and durability
OPTIMAL PERFORMANCE: Precision coil windings and laminations maximize outputs, custom NGK ASIC chipset optimizes efficiency, prevents component damage
EASE OF INSTALLATION: NGK Ignition Coils include ignition control module, premium high temperature coil boot, and jumper harnesses where required
THE NGK DIFFERENCE: Featuring superior materials and design enhancements.
EXTENSIVE TESTING: NGK ignition coils must pass extreme testing during manufacturing to ensure the highest quality and durability standards are met
PRODUCT ENGINEERING: Advanced flow and stress modeling systems preemptively identify and avoid common failure points found in OE and competitor coils

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$37.99

Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure confidence and product reliability, every time.

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$59.99

Delphi OE technology ignition products are validated to match the vehicles system; OE quality replacement parts for the right fit , form and function; Delphi coils provide OE performance, durability and electromagnetic capacity level requirements.

Product Features:

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

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$39.99

Built by IATF 16949 certified manufacturers for consistent durability
Coil drivers match OE for current limit, electrostatic discharge (ESD) protection and multi-spark
Segmented secondary bobbins to distribute high voltage and prevent shorting
Extensive design validation testing to ensure long-lasting reliability
100% end-of-line tested to ensure proper performance
Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413

from

$49.49

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

Upgrade your 2018 Audi A8 Quattro with Top-Quality Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2018 Audi A8 Quattro, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Ignition and Tune-Up Products are key to keeping your A8 Quattro functioning at its best. At Advance Auto Parts, we offer a wide selection of 24 Ignition and Tune-Up Products for the 2018 Audi A8 Quattro, designed to meet your needs without breaking the bank. From Ignition Coils and Boot replacements to Spark Plugs upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Ignition and Tune-Up Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Ignition and Tune-Up Products for your 2018 Audi A8 Quattro at great prices. Our Ignition and Tune-Up Products inventory for this model ranges from just $3.79 to $61.99, with an average price of $25.26. Our 24 Ignition and Tune-Up Products in stock come from 11 trusted brands, so you’re sure to find the right part for your 2018 Audi A8 Quattro without overspending.

Top Brands and High Customer Satisfaction

Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2018 Audi A8 Quattro, we stock popular OEM and aftermarket Ignition and Tune-Up Products from top names like Autolite, NGK, Motorcraft, and more. Autolite Ignition and Tune-Up Products start at just $3.79 and boast an impressive 5 stars average rating from customers. NGK and Motorcraft also bring quality to the table, with Ignition and Tune-Up Products available starting at $6.99, and at an average 5 stars rating. With 604 customer reviews and counting, our 2018 Audi A8 Quattro Ignition and Tune-Up Products have a strong track record of reliability, ensuring you can trust your purchase.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Ignition and Tune-Up Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2018 Audi A8 Quattro is always ready to roll. We’re committed to providing you with everything you need to keep your A8 Quattro in top shape, all in one place. Start shopping confidently below for your 2018 Audi A8 Quattro!

Best-Selling Ignition Coils and Boots for 2018 Audi A8 Quattros

Enhance the driving experience in your Audi with 11 quality Ignition Coils and Boot components, starting at $19.99.

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$37.64

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$36.05

Intermotor® is a complete engine management import line that includes ignition and electrical relays, switches and sensors with a concentration on high technology categories such as computerized engine controls, fuel injection, and emission controls with coverage for every part number with an import nameplate. Intermotor® parts are unrivalled for quality, original fit, form, function, and coverage providing a genuine import part in every box. Intermotor® is the import leader by design.

Product Features:

100% pure copper windings in primary and secondary bobbins improve durability and provide higher resistance to internal shorts and dielectric breakdown
Electronic ignition module profile and feedback signal ensures proper OE fit, form, and function
Thermoplastic housing withstands heat stress for enhanced durability
Internal core made from grain-oriented electrical steel limits loss factor within magnetic circuit to reduce heat that may reduce coil endurance
External core made from oriented silicon steel ensures durability and longevity
Neodymium magnet produces max high voltage output at all speeds
Stainless steel spring resists corrosion
Tin-plated brass terminals improve electrical contact and protect against corrosion

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$54.99

OE QUALITY: Vacuum-sealed premium epoxy resin and thermoplastic coil housings provide superior dielectric strength, voltage insulation and durability
OPTIMAL PERFORMANCE: Precision coil windings and laminations maximize outputs, custom NGK ASIC chipset optimizes efficiency, prevents component damage
EASE OF INSTALLATION: NGK Ignition Coils include ignition control module, premium high temperature coil boot, and jumper harnesses where required
THE NGK DIFFERENCE: Featuring superior materials and design enhancements.
EXTENSIVE TESTING: NGK ignition coils must pass extreme testing during manufacturing to ensure the highest quality and durability standards are met
PRODUCT ENGINEERING: Advanced flow and stress modeling systems preemptively identify and avoid common failure points found in OE and competitor coils

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$37.99

Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
100% pure copper precision-wound windings increase coil life and ensure reliability and maximum coil output when needed.
Highly conductive aluminum alloy secondary terminal guarantees secondary coil terminals will not oxidize (rust), will provide excellent conductivity, extended coil life and will not cause excessive stress on the primary control circuit.
100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
100% end-of-line tested to ensure confidence and product reliability, every time.

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$41.99

Benefits of Bosch original equipment quality ignitions coils include the right ignition voltage, long lasting spark, better engine running conditions, lower fuel consumption, and reduced exhaust emissions.

Product Features:

Meets or exceeds OEM specification
Ensures reliable voltage for smooth engine performance

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$49.49

Delphi coils provide OE performance, durability and electromagnetic capacity level requirements
Delphi ignition coils are designed to operate as part of an integral engine management system to insert power into spark plugs and ensure fast starts; consistent engine performance and optimized fuel efficiency
Delphi uses winding process techniques to control the length of wire between adjacent windings; that’s important since more length means greater voltage differences and can create more pressure that could break down the insulation and wire coating
We back our ignition coil design with proven materials, such as high quality wires and wire coating that resists the cracks, pin holes and imperfections that most often lead to failure issues

from

$31.49

from

$19.99

Premium quality materials for longer service life
Sealed connections (where applicable) to prevent environmental corrosion and performance issues
Global coverage for import and/or domestic applications
OE specified wire gauge to ensure a reliable electrical connection
Designed to meet or exceed OE specifications in form, fit and function

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$61.99

Matches OE form, fit and function
Made from premium materials to withstand high temperatures
Primary and secondary windings made from copper
Out of the box and straight onto the vehicle for easy installation
Application specific for this vehicle

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$49.21

High-performance ignition coils from Bosch guarantee a reliable voltage from the start, more ignition energy to ensure that your engine starts and runs smoothly. Bosch ignition systems combine the security of fully developed system engineering with the employment of the latest technology. The application of Bosch ignition coils ensures all advantages of the original equipment. Bosch Ignition coils provide more ignition energy to ensure that your engine starts well and runs smoothly. High-performance ignition coils from Bosch guarantee a reliable voltage from the start.

Product Features:

Demand controlled ignition voltage
Long spark duration
Better engine performance
Reduced fuel consumption
Reduced obnoxious emissions in exhaust gas

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$46.52

Ign. Coil Connector

Most Popular 2018 Audi A8 Quattro Spark Plugs

Customize your Audi with 13 Spark Plugs products like Spark Plugs, all priced under $20.02.

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$4.79

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Platinum spark plugs provide a center wire platinum firing tip which provides reduced gap erosion, fewer misfires, better performance and increased durability. Consider upgrading to Autolite Double Platinum or Iridium XP spark plugs for increased performance.

Product Features:

High nickel alloy side electrode maintains precise gap
Full platinum tip assures virtually no gap erosion for long life
Necked-down center electrode fires quicker, cleaner with less voltage for easier starts, quicker acceleration and improved fuel economy (as compared to standard plugs)

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$6.79

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, Autolite Double Platinum spark plugs feature platinum-to-platinum firing which virtually eliminates gap erosion, reduces misfires and increases durability of the plug. Consider upgrading to Autolite Iridium XP spark plugs for increased performance.

Product Features:

Works to optimize engine performance for a longer life and improved fuel economy
OE design
Full-platinum tips; platinum on both the center and side electrodes to promote reduced gap wear
Platinum ball welding process provides a consistent point of contact for enhanced adhesion

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$12.99

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode’s durability is six times harder than platinum. Iridium alloy’s extremely high melting point is perfect for today’s engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

Product Features:

SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
IRIDIUM ALLOY CENTER ELECTRODE: Iridium’s density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
Outstanding Acceleration and High Fuel Efficiency: NGK Iridium IX spark plugs are engineered to deliver superior acceleration and enhanced fuel efficiency, making them ideal for performance enthusiasts.
Extreme Ignitability and Anti-Fouling: These spark plugs offer exceptional ignitability and anti-fouling properties, ensuring reliable performance and longevity.

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$3.79

Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
Multi-rib insulator reduces danger of “flash-over”
One-piece terminal post adds strength
Resistor reduces radio frequency interference (RFI) and electrode erosion

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$5.29

The ground electrode is cut-back from the center electrode to provide a gap. The face of the ground electrode is concave to provide a constant gap to the center electrode. This plug is designed use in all aftermarket cylinder heads used in different types of racing venues including oval and road racing.

Product Features:

Opens spark face for better ignitability of flame kernel
Retains less heat, transfers heat to shell faster – reduces risk of pre-ignition
Dyno testing has shown proven power gains
Cut-back ground electrode evolved from practice of grinding back the side electrode

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$6.99

Motorcraft spark plugs are matched to specific engines to provide enhanced durability, eliminate misfires, reduce fuel consumption and optimize emissions.
Backed by Motorcraft’s Service Parts Warranty
Exact fit for Ford, Lincoln and Mercury vehicles
Resistant to oxidation and arc erosion.
Multi-rib insulator protects against misfire.
Service intervals of up to 100,000 miles.
Motorcraft Spark Plugs are designed with high quality materials to provide reliable performance for almost any application.
Motorcraft Spark Plugs are what was in the vehicle when it was manufactured
Motorcraft ignition components help prevent false check engine lights.
Enhanced Durability: Engineered to meet strict Ford engineering standards, these spark plugs are designed to provide long-lasting performance with a platinum center and ground electrode tip that resist oxidation and arc erosion.

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$9.99

0.6 mm finewire design improves ignitability
Patented V-trimmed platinum sidewire technology resists wear
OE equivalent design is engineered for every engine
Designed for better overall durability with virtually no gap erosion

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$17.49

ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction fine wire platinum alloy center electrode provides consistent performance
PLATINUM ALLOY CENTER ELECTRODE: Longer wearing and higher temperature resistance compared to traditional nickel spark plugs
PLATINUM TIP GROUND ELECTRODE: Unless OE specified, platinum protection at the ground electrode provides excellent ignitability and service life
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
RECOMMENDED USAGE: Best for vehicles with OE fine wire platinum alloy plugs
Engineered for OE Applications: Specifically designed for Original Equipment (OE) applications, ensuring a perfect fit and optimal performance.
Stable Idling and Superior Anti-Fouling: These spark plugs provide stable idling and excellent anti-fouling properties, enhancing overall engine performance.
Improved Fuel Efficiency and Lower Emissions: Engineered to improve fuel efficiency and reduce emissions, contributing to a more eco-friendly driving experience.

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$20.02

NGK Laser Platinum spark plugs provide high ignitability and longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions. The platinum disc welded to backside of ground electrode provides long life, faster starts and quicker acceleration. Laser Platinum spark plugs provide high ignitability and longer service life.

Product Features:

Laser welded Platinum center electrode tip
Platinum disc welded to backside of ground electrode provides long life
Trivalent Metal Plating provides superior anti-corrosion and anti-seizing properties
Faster starts and quicker acceleration
Better fuel economy and lower emissions
Best Platinum spark plug available
Original Equipment Manufacturer approved design

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$18.19

2X longer service life compared to standard copper plugs Bosch Platinum Spark Plugs are the newest member of our OE fine wire spark plug family. From the brand trusted in the world’s most advanced engines, Bosch Platinum Spark Plugs are engineered to provide you with improved ignitability and performance.

Product Features:

OE design for optimum fit and function
Fine wire design delivers improved ignitability and performance life
Center electrode is an ultra fine wire design.
Copper core provides broader heat range to resist pre-ignition
Tapered shape ground electrode reduces flame shrouding for improved combustion
Yttrium enhanced to resist wear
Nickel-plated shell with rolled threads
Ribbed insulator design

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$15.31

Tapered cut, U-Groove ground electrode
0.4mm iridium center electrode
360-degree laser welding assembly process
Required ignition voltage reduced
Unsurpassed center electrode durability
Available for many performance and power sports applications, including Corvette, Viper, and Harley-Davidson The Iridium Power plug delivers greater spark energy while demanding significantly less secondary required voltage from the ignition system.

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$9.79

Increased performance with World’s smallest Iridium Center Eletrode (0.4mm).

Product Features:

World’s smallest Iridium Center Electrode (0.4mm) for improved spark for maximum combustion
Patented 360-degree laser welding assembly process
U-groove and taper cut ground electrode to maximize flame propagation.
Withstands temperatures greater than 4000¦ Fahrenheit
Burnished nickel plating for high temperature endurance and superior corrosion resistance
Wide range of part numbers for thousands of applications, including classic and collector cars
Iridium Power

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$7.49

Engineered for superior ignition performance, the Motorcraft High-Performance Spark Plug is designed to optimize fuel efficiency and ensure reliable starts. Crafted with precision, this spark plug offers exceptional durability and consistent performance, making it an ideal choice for maintaining your vehicle’s peak performance. Trust Motorcraft for quality and dependability in every drive.

Product Features:

Enhances Fuel Efficiency: Engineered to optimize fuel efficiency, ensuring you get the most out of every gallon.
Superior Ignition Performance: Designed for reliable starts and consistent performance, providing peace of mind on every drive.
Exceptional Durability: Crafted with precision to withstand the demands of high-performance engines, ensuring long-lasting use.
Consistent Performance: Maintains your vehicle’s peak performance, making it an ideal choice for regular maintenance.
Quality and Dependability: Trust Motorcraft for high-quality spark plugs that deliver dependable performance in every drive.
Enhances Fuel Efficiency: Engineered to optimize fuel efficiency, ensuring you get the most out of every gallon.
Superior Ignition Performance: Designed for reliable starts and consistent performance, providing peace of mind on every drive.
Exceptional Durability: Crafted with precision to withstand the demands of high-performance engines, ensuring long-lasting use.
Consistent Performance: Maintains your vehicle’s peak performance, making it an ideal choice for regular maintenance.
Quality and Dependability: Trust Motorcraft for high-quality spark plugs that deliver dependable performance in every drive.

Top-Rated Ignition and Tune-Up Products Brands For Your 2018 Audi A8 Quattro

Shop for the best-rated brands offering Ignition and Tune-Up Products and other products for your 2018 Audi A8 Quattros. Below you’ll find some of our best rated Ignition and Tune-Up Products from Autolite, NGK, and Motorcraft, and more. Ignition and Tune-Up Products from these brands that fit a 2018 A8 Quattro start at just $3.79 and are rated as high as 5 stars. OEM and aftermarket Ignition and Tune-Up Products don’t get more top quality, durable, and affordable than from the brands below.

Popular Autolite 2018 Audi A8 Quattro Ignition and Tune-Up Products

When it comes to maintaining or upgrading your 2018 Audi A8 Quattro, using quality Ignition and Tune-Up Products is essential to ensure durability and a perfect fit. Autolite ticks all of those boxes. We offer a wide selection of Autolite Ignition and Tune-Up Products, specifically designed for the 2018 Audi A8 Quattro. With over 5 Autolite brand Ignition and Tune-Up Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $3.79, with an average price of just $6.13. Plus, with over 265 customer reviews and an average rating of 5 stars, you can trust that our Autolite Ignition and Tune-Up Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.

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$4.79

(126)

Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration

“My favorite brand”

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$6.79

(72)

Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life

“Greatest”

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$9.99

This product is not rated

Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition

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Popular NGK 2018 Audi A8 Quattro Ignition and Tune-Up Products

NGK auto parts is one of the highest quality Ignition and Tune-Up Product brands in the market. Any 2018 Audi A8 Quattro owner should feel confident when installing genuine NGK parts in their vehicle. To ensure the best fit and performance for your 2018 A8 Quattro, Advance Auto Parts carries a full inventory of 4 NGK Ignition and Tune-Up Products. Plus you will be keeping your Audi in peak condition while saving money because prices on these NGK Ignition and Tune-Up Products range from $12.99 to $54.99, plus, with more than 323 customer reviews and an impressive 5 stars average rating, you can be confident the Fram Ignition and Tune-Up Products below will deliver on both quality and value.

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$17.49

This product is not rated

OE Series Laser Platinum Spark Plug: Fine Wire Tip Design, PFR8S8EG

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$54.99

This product is not rated

Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece

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$20.02

This product is not rated

Laser Platinum Spark Plug

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FAQs for 2018 Audi A8 Quattro Ignition and Tune-Up Products

Which Ignition and Tune-Up Products are best-sellers for 2018 Audi A8 Quattros?

Out of 24 Ignition and Tune-Up Products that fit 2018 Audi A8 Quattros, the following parts are the top sellers:

Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (15650193) – $9.99
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (5394082) – $4.79
Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (5394570) – $6.79

What’s the price range for 2018 Audi A8 Quattro Ignition and Tune-Up Products?

Ignition and Tune-Up Product prices for the 2018 Audi A8 Quattro start at $3.79 and go up to $61.99 for the most premium parts.

What’s the average price of a Ignition and Tune-Up Product for a 2018 Audi A8 Quattro?

The average price for Ignition and Tune-Up Products for the 2018 Audi A8 Quattro is $25.26. Keep in mind the variety of part types within our Ignition and Tune-Up Product category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Ignition and Tune-Up Products for other Audi A8 Quattro model years?

Yes, we currently carry Ignition and Tune-Up Products for 27 model years of Audi A8 Quattros between 1997 and 2024. Ignition and Tune-Up Products are bought most frequently for the following model years: 2023, 2022, 2021, 2020, 2019, 2017, 2016, 2015, and 2014.

What are the cheapest Ignition and Tune-Up Products for my 2018 Audi A8 Quattro?

The cheapest 2018 Audi A8 Quattro Ignition and Tune-Up Products we carry in stock are:

Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (5390710) – $3.79
Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (5394082) – $4.79
Racing Resistor Spark Plug: Enables Performance, Handles Intense Conditions (15650020) – $5.29
Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (5394570) – $6.79
Platinum Spark Plug: Enhances Durability & Reduces Fuel Consumption (15650255) – $6.99

What are the top-rated Ignition and Tune-Up Products that fit the 2018 Audi A8 Quattro?

Out of 604 reviews by customers, our 2018 Audi A8 Quattro Ignition and Tune-Up Products have an average customer rating of . These are some of the highest-rated Ignition and Tune-Up Product types for the 2018 Audi A8 Quattro and their top-rated products:

Ignition Coils and Boots
- Ignition Coil Connector Kit, Repair Kit (10808589) – $37.64
- Ignition Coil (10015530) – $36.05
Spark Plugs
- Ignition Coil Connector Kit, Repair Kit (10808589) – $37.64
- Ignition Coil (10015530) – $36.05

What types of Ignition and Tune-Up Products do you sell for my 2018 Audi A8 Quattro?

As of 2/5/25, these are some of the most in-demand types of Ignition and Tune-Up Products for a 2018 Audi A8 Quattro:

Can I get help with 2018 Audi A8 Quattro Ignition and Tune-Up Product orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Audi Ignition and Tune-Up Products and more.

What is your return policy for Audi A8 Quattro Ignition and Tune-Up Products?

Advance Auto Parts keeps returns simple. For new Audi A8 Quattro Ignition and Tune-Up Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2018 Audi A8 Quattro Ignition and Tune-Up Products

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP5224)

DENSO – U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, K20PBR-S10 (Part No.5061)

NGK – OE Series Laser Platinum Spark Plug: Semi-Surface Discharge Tip Design, BKR6EQUP (Part No.3199)

DENSO – U-Groove Spark Plug: OE Performance, lasts 30K+ Miles, T20EPR-U (Part No.5032)

Motorcraft – Platinum Spark Plug: Enhances Durability & Reduces Fuel Consumption (Part No.SP-497)

NGK – OE Series Laser Platinum Spark Plug: Fine Wire Tip Design, PFR6W-TG (Part No.5547)

NGK – Standard Spark Plug (Part No.F1000312421NGK)

DENSO – Iridium Power Spark Plug (Part No.F100089228ND)

DENSO – Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IK20TT (Part No.4702)

Carquest Premium – Ignition Coil Connector (Part No.PTA1566)

Carquest Premium – A/C Pressure Transducer Connector (Part No.PTA1151)

Carquest Premium – Ignition Coil Connector (Part No.HAC1004)

Dorman – Ign. Coil Connector (Part No.F3004706868DOR)

Karlyn – Ignition Coil Connector Kit, Repair Kit (Part No.F3004331069KAR)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBC1727)

Bremi – OE Replacement Direct Ignition Coil – (Coil on Plug) (Part No.F3005335137BRM)

Bremi – OE Replacement Direct Ignition Coil – (Coil on Plug) (Part No.F300586256BRM)

Beck/Arnley – Direct Ignition Coil (Part No.178-8416)

NGK – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.48728)

DENSO – Original Equipment Quality Direct Ignition Coil (Part No.673-9302)

NGK – Direct Ignition Coil – (Coil on Plug) (Part No.F30001320391NGK)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1093)

Delphi – Ignition Coil (Part No.F30001450296DEL)

NGK – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.48689)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1038)

Delphi – IGNITION COIL (Part No.GN10326)

Carquest Premium – Ignition Coil: Meets or Exceeds OE Specifications, 1 Count (Part No.EBE1796)

Delphi – Ignition Coil (Part No.GN10446)

Karlyn – Ignition Coil Connector Kit, Repair Kit (Part No.F3004331069KAR)

Carquest – Ignition Coil (Part No.E1029)

NGK – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.48728)

Carquest Premium – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.EBC1038)

Bosch – Ignition Coil: Meets or Exceeds Original Equipment Specifications, 1 Piece (Part No.0221604800)

Delphi – Ignition Coil (Part No.GN10446)

Carquest Premium – Ignition Coil Connector (Part No.HAC1004)

Carquest Premium – Ignition Coil Connector (Part No.PTA1566)

Beck/Arnley – Direct Ignition Coil (Part No.178-8429)

Bosch – Direct Ignition Coil – (Coil on Plug) (Part No.F3005939201BOS)

Dorman – Ign. Coil Connector (Part No.F3004706868DOR)

Autolite – Platinum Spark Plug: Fires Cleaner, Easier Starts, Quicker Acceleration (Part No.AP3924)

Autolite – Double Platinum Spark Plug: Platinum Firing, Superior Durability, Longer Life (Part No.APP3924)

NGK – Iridium IX Spark Plug: Single Iridium Fine Wire, BKR8EIX (Part No.2668)

Autolite – Copper Spark Plug: Delivers Quick Starts, Good Fuel Economy, Smooth Acceleration (Part No.3924)

Autolite – Racing Resistor Spark Plug: Enables Performance, Handles Intense Conditions (Part No.AR3924)

Motorcraft – Platinum Spark Plug: Enhances Durability & Reduces Fuel Consumption (Part No.SP-497)

Autolite Iridium – Iridium XP Finewire Spark Plug: Improved Durability, More Focused Ignition (Part No.XP3924)

NGK – OE Series Laser Platinum Spark Plug: Fine Wire Tip Design, PFR8S8EG (Part No.94460)

NGK – Laser Platinum Spark Plug (Part No.F1000451269NGK)

Bosch – OE Finewire Platinum Spark Plug (Part No.F1000404796BOS)

DENSO – Iridium Power Spark Plug (Part No.F100089228ND)

DENSO – Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IK24 (Part No.5311)

Motorcraft – High-Performance Spark Plug: Enhances Fuel Efficiency (Part No.SP-497-X)