1998 Audi A6 Quattro Filters and PCVs

Essential 1998 Audi A6 Quattro Filters and PCVs

Pro-King – Automatic Transmission Filter Kit (Part No.FK-364)

Automatic Transmission Filter Kit

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$22.49
Provides OE-quality filtration. Sure Hold gaskets are designed to keep your pan gasket in place during installation. Includes trilingual instructions.
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Rein – A/T Filter Kit (Part No.RTK0003)

A/T Filter Kit

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$29.99
Rein automotive transmission filter kits fit European vehicles the way the original manufacturer intended.

Product Features:
  • Direct replacement
  • Comes with all needed components to install the transmission filter
  • Produced with high quality materials to ensure maximum life and a smooth ride
  • Matches original equipment design specifications
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Rein – Transmission Filter (Part No.RTF0011)

Transmission Filter

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$37.99
Rein Automotive transmission filters fit European vehicles the way the original manufacturer intended.

Product Features:
  • Direct replacement.
  • Includes all needed components to install the transmission filter.
  • Produced with high quality materials to ensure maximum life and a smooth ride.
  • Matches original equipment design specifications.
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Mann-Filter – Cabin Air Filter (Part No.CUK 3037)

Cabin Air Filter

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$18.99
Poor quality air makes you tired, irritates your eyes and respiratory tract. Cabin air filters from MANN-FILTER ensure improved comfort and fresh air in your car, as they almost completely free the air entering the vehicle of dust, pollen, soot and other pollutants: precisely those substances which are causing health problems for more and more people, especially asthmatics and those with allergies. Like all filters, however, MANN-FILTER cabin air filters also have to be changed regularly. As a general rule, they should be serviced at one-year intervals or after every 15,000 km travelled. Misty windows, a stuffy cabin and a malfunctioning air conditioning system are also sure signs that replacement is necessary. Next time you are changing your cabin air filter, play it safe and choose a patented high-tech filter from MANN-FILTER. Our products are a perfect fit and of verified original equipment quality. Detailed installation instructions mean that assembly is quick and easy.

Product Features:
  • Ensure improved comfort and fresh air in your car
  • Almost completely free the air entering the vehicle of dust, pollen, soot and other pollutants
  • Perfect fit and of verified original equipment quality
  • Detailed installation instructions for quick and easy assembly
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Carquest Premium – Cabin Air Filter 90144CT: Cleans Air by Reducing Pollen and Dust (Part No.90144CT)

Cabin Air Filter 90144CT: Cleans Air by Reducing Pollen and Dust

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$30.49
Carquest Premium cabin air filters are manufactured to the highest quality standards and field tested to ensure easy installation. Our cabin air filters are engineered to stop airborne contaminants from getting into the cabin while also protecting the delicate components of modern vehicle climate control systems. Carquest Premium cabin air filters utilize electrostatic particulate, non-woven media for longer filter life. Each Carquest Premium cabin air filter also includes application-specific installation instructions in the box to save you installation time.

Product Features:
  • Electrostatic particulate, non-woven filter media allows longer filter life
  • Select applications available with activated carbon infused media to neutralize odors
  • Effectively traps airborne contaminants for cleaner air in the cabin
  • 95% efficiency at 3 microns per ISO 11155-1 test standard
  • Flow arrow on side of filter indicates installation position
  • All filters include application specific installation instructions
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Purolator ONE – Advanced Filtration Cabin Air Filter: Up to 99% Dirt Removal; Activated Carbon Blocks Odors (Part No.C35484C)

Advanced Filtration Cabin Air Filter: Up to 99% Dirt Removal; Activated Carbon Blocks Odors

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$40.49
Get up to 99% Dirt Removal Power with a PurolatorONE Advanced Cabin Air Filter. Blocks odors with activated carbon. Electrostatically charged, micro-woven fiber layers remove even microscopic particles like dirt, dust, soot, pollen and other inert allergens. Improves HVAC and defroster performance, and meets or exceeds OE performance requirements. Install a new PurolatorONE Cabin Air Filter today – and breathe easy!

Product Features:
  • Activated carbon blocks odors
  • Up to 99% Dirt Removal Power
  • Captures airborne contaminants and inert allergens that have been known to cause respiratory issues
  • Electrostatically charged, micro-woven fiber layers remove even microscopic particles like dirt, dust, soot and pollen
  • Improves HVAC and defroster performance
  • Meets or exceeds OE performance requirements
  • Replace annually for optimal fresh, clean air
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Pro-King – Automatic Transmission Filter Kit (Part No.FK-316)

Automatic Transmission Filter Kit

from

$20.99
Provides OE-quality filtration. Sure Hold gaskets are designed to keep your pan gasket in place during installation. Includes trilingual instructions.
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Beck/Arnley – Transmission Filter Kit (Part No.044-0302)

Transmission Filter Kit

from

$59.99
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
  • Includes o-rings and/or gaskets that are required for complete filter installation
  • A premium Made rubber pan gasket is included if applicable
  • Be sure to use the specific ATF formulated for this transmission – check Beck/Arnley catalog
  • Application specific for this vehicle
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Carquest Premium – TRANSMISSION FILTER (Part No.96321476)

TRANSMISSION FILTER

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$16.99
TRANSMISSION FILTER

Carquest Premium – 3 Line (5/16" Inlet – 5/16"Outlet, 3/8" Vapor) Metal In-Line Fuel Filter (Part No.86831)

3 Line (5/16" Inlet - 5/16"Outlet, 3/8" Vapor) Metal In-Line Fuel Filter

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$54.99
CARQUEST offers high quality, high efficiency fuel filters for automotive, medium and heavy trucks as well as farm, construction, mining and other equipment applications.

Product Features:
  • Keeps dirt, debris and contaminants from clogging fuel lines and causing erratic, unstable fuel performance
  • Manufactured to a strict quality standards with 98% efficiency at a 10 micron rating.
  • Provides maximum fuel system protection.
  • Designed to meet or exceed Original Equipment specifications
  • Protects the injectors from debris that cause damage and clogging.
  • Provides less restriction preventing the fuel pump from working too hard.
  • Superior materials, design and construction ensure CARQUEST fuel filters provide excellent performance under all types of operating conditions.
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Carquest Premium – 14X1.5mm Inlet – 12X1.5mm Outlet Fuel Filter (Part No.86156)

14X1.5mm Inlet - 12X1.5mm Outlet Fuel Filter

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$29.99
CARQUEST offers high quality, high efficiency fuel filters for automotive, medium and heavy trucks as well as farm, construction, mining and other equipment applications.

Product Features:
  • Keeps dirt, debris and contaminants from clogging fuel lines and causing erratic, unstable fuel performance
  • Manufactured to a strict quality standards with 98% efficiency at a 10 micron rating.
  • Provides maximum fuel system protection.
  • Designed to meet or exceed Original Equipment specifications
  • Protects the injectors from debris that cause damage and clogging.
  • Provides less restriction preventing the fuel pump from working too hard.
  • Superior materials, design and construction ensure CARQUEST fuel filters provide excellent performance under all types of operating conditions.
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Purolator – Fuel Filter (Part No.F60146)

Fuel Filter

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$35.99
A clogged fuel filter could lead to contaminants in the engine fluid – a common source of engine system failures. Protect fuel pumps and fuel injectors from these costly malfunctions. A Purolator® Fuel Filter scrubs fuel clean of dirt, rust and other contaminants for smooth and efficient engine performance.

Product Features:
  • Removes water from the fuel system
  • Prevents rust and corrosion in your engine
  • Keeps fuel contaminant free
  • Replace annually for peak performance
  • Meets or exceeds OE specifications
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Dorman – EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack (Part No.090-090)

EZ Drain Engine Oil Drain Plug: TR16X3 Thread, 1 Pack

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$43.49
This engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles. It is engineered to replace a missing or damaged plug and help ensure a secure seal.

Product Features:
  • Direct replacement – this engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles
  • Ideal solution – engineered to replace a missing or damaged plug and help ensure a secure seal
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Accufit – Oil Drain Plug, M14 x 1.5 (Part No.ODP-00007B)

Oil Drain Plug, M14 x 1.5

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$5.49
AGS ACCUFIT Oil Drain Plug is a high-coverage/low-part number program that covers up to 93% of all vehicles on the road, including domestic, European, Japanese, British, and Korean models, while reducing inventory and associated costs by 80%. Reducing stocked part numbers to just 13 and the superior quality built-in features make ACCUFIT your number one choice for oil drain plugs. Easy Install – Finger-grip wing for ease of installation. All plugs have 14mm hex – just one wrench works for all! Hi-Temp Gasket – Red hi-temp gasket for max sealing protection. Easy ID – Thread size etched on each plug. Rust Protection – Black oxide coating for rust and corrosion protection. Avoid Cross-Threading – Pilot-point tip to avoid cross-threading during installation.

Product Features:
  • Easy Install – Finger-grip wing for ease of installation
  • All plugs have 14mm hex – just one wrench works for all
  • Hi-Temp Gasket – Red hi-temp gasket for max sealing protection
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Febi – Oil Drain Plug (Part No.A6110239896FEB)

Oil Drain Plug

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$2.98
Oil Drain Plug

Dorman – Pilot Point Engine Oil Drain Plug: M14-1.50 Thread, 19 mm Head, 1 Pack (Part No.090-171.1)

Pilot Point Engine Oil Drain Plug: M14-1.50 Thread, 19 mm Head, 1 Pack

from

$2.99
This engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles. It is engineered to replace a missing or damaged plug and help ensure a secure seal.

Product Features:
  • Direct replacement – this engine oil drain plug is designed to match the fit and function of an original equipment plug on specified vehicles
  • Ideal solution – engineered to replace a missing or damaged plug and help ensure a secure seal
  • Durable construction – designed and manufactured to strict specifications for reliable performance
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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MTC – FUEL PUMP TANK SEAL (Part No.E3004321573MTC)

FUEL PUMP TANK SEAL

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$6.67
FUEL PUMP TANK SEAL

aFe POWER – PRO DRY S Air Filter: 99.2% Filtration Efficiency, 3 Layer Synthetic, Dry Filter, Street Driving (Part No.31-10044)

PRO DRY S Air Filter: 99.2% Filtration Efficiency, 3 Layer Synthetic, Dry Filter, Street Driving

from

$84.99
Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Product Features:
  • Outflows Stock Paper Filters For Improved Horsepower and Torque
  • 100% Polyurethane Frame On All Sides For Extra Long Filter Life
  • Washable And Reusable For Multiple Cleaning Cycles
  • Progressive Bump Seal Design For A Perfect Fit
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Carquest Premium – Air Filter (Part No.88240)

Air Filter

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$14.79
Blocks dust, dirt, bacteria and pollution that can interrupt engine performance. Designed to offer consistent air flow to help increase horsepower and acceleration

Product Features:
  • Prescription filtration provides stronger resistance against moisture and collapse from rain and snow
  • Optimum pleat count provides a higher filtration function
  • Superior protection for vehicles in dusty or dirty environments, snow, high heat/humidity and frequent trips less than 10 miles
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K&N – Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration (Part No.E-1983)

Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration

from

$89.99
K&N performance High-Flow Air Filters are engineered to improve engine performance. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle or outdoor power small engine. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world┐s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Product Features:
  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
  • 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
  • CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles)
  • ULTIMATE LONGEVITY: No-hassle lifetime warranty on stock replacement K&N air filters- limitations apply
  • EASY INSTALLATION: K&N Air Filters are pre-treated and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
  • ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability
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Carquest Premium – Engine Air Filter: Removes up to 99% of Dirt & Debris (Part No.83846)

Engine Air Filter: Removes up to 99% of Dirt & Debris

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$50.99
Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.
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Carquest Premium – Engine Air Filter: Removes up to 99% of Dirt & Debris (Part No.83343)

Engine Air Filter: Removes up to 99% of Dirt & Debris

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$29.49
Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.
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Carquest Premium – Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles (Part No.84172)

Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles

from

$17.49
Carquest Premium oil filters are built for durability, utilizing enhanced components to protect engines for the extended drain intervals of modern vehicles using conventional or synthetic lubricants. Our oil filters are built with synthetic blend media that provides 2X the capacity and up to 10,000 miles of protection. Carquest Premium filters feature silicone sealing gaskets for better performance in extreme temperatures. Carquest Premium oil filters meet or exceed original equipment (O.E.) specifications and meet the requirements for maintaining a new vehicle warranty.

Product Features:
  • Protection for up to 10,000 miles
  • Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters
  • Solid metal end caps are designed to be long lasting
  • Silicone anti-drain back valve for engine start-up protection
  • Heavy-duty steel baseplate provides additional strength to resist leakage
  • Heavy gauge steel canister withstands high pressure operating conditions
  • Silicone sealing gasket performs better in extreme temperature conditions and longer drain intervals (silicone gasket is new feature introduced as a running change)
  • Meets requirements for maintaining new vehicle warranties
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PurolatorBOSS – Oil Filter: Ideal for Full Synthetic Oil, Protects up to 20,000 miles (Part No.PBL21478)

Oil Filter: Ideal for Full Synthetic Oil, Protects up to 20,000 miles

from

$17.99
PurolatorBOSS Premium Oil Filters are the next generation in oil filtration, delivering maximum engine protection for up to 20,000 miles. PurolatorBOSS exclusively features SmartFUSION Technology – a full synthetic filter media with reinforced polymer mesh backing for over 99% Dirt Removal Power. Engineered to work well with all oil types and viscosities, especially full synthetic oil, PurolatorBOSS is ideal for the most demanding driving conditions, including frequent towing and hauling, stop and go traffic, long commutes, long idle periods and extreme climates. Its rugged internal construction withstands wear and high mileage with a heavy duty BOSS Steel Casing and an innovative double helix, high-flow center tube for twice the strength of traditional side-seam designed center tubes. Widely available for most vehicles on the road today, PurolatorBOSS combines the latest filter technologies for long-lasting protection and advanced engine performance.

Product Features:
  • Up to 20,000 miles – maximum engine protection
  • Ideal for full synthetic oils
  • Over 99% Dirt Removal Power
  • SmartFUSION Technology – a full synthetic filter media with reinforced polymer mesh backing for expanded dirt holding capacity
  • Silicone anti-drainback valve prevents dry starts
  • BOSS Steel Casing withstands extreme pressure while metal end-caps enhance durability
  • PuroSEAL Gasket made from ethylene-acrylic for maximum leak protection
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Carquest Premium – Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles (Part No.84330)

Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles

from

$28.99
Carquest Premium oil filters are built for durability, utilizing enhanced components to protect engines for the extended drain intervals of modern vehicles using conventional or synthetic lubricants. Our oil filters are built with synthetic blend media that provides 2X the capacity and up to 10,000 miles of protection. Carquest Premium filters feature silicone sealing gaskets for better performance in extreme temperatures. Carquest Premium oil filters meet or exceed original equipment (O.E.) specifications and meet the requirements for maintaining a new vehicle warranty.

Product Features:
  • Protection for up to 10,000 miles
  • Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters
  • Solid metal end caps are designed to be long lasting
  • Silicone anti-drain back valve for engine start-up protection
  • Heavy-duty steel baseplate provides additional strength to resist leakage
  • Heavy gauge steel canister withstands high pressure operating conditions
  • Silicone sealing gasket performs better in extreme temperature conditions and longer drain intervals (silicone gasket is new feature introduced as a running change)
  • Meets requirements for maintaining new vehicle warranties
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FRAM Drive – Cartridge Oil Filter: Ideal for Conventional Oil, Protection up to 7,500 miles (Part No.FD11784)

Cartridge Oil Filter: Ideal for Conventional Oil, Protection up to 7,500 miles

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$11.99
FRAM Drive is the perfect oil filter for everyday driver. Designed with OE grade synthetic blend media and compatible with both conventional and synthetic oil types, FRAM Drive keeps engine protected for up to 7,500 miles (12,000 kilometers). FRAM Drive is engineered to withstand high temperatures and endure working pressures common in todays engines.  

Product Features:
  • Proven protection for up to 7,500 miles 
  • Engineered for use with synthetic or conventional motor oil
  • Precision Relief Valve provides consistent oil flow, even in cold conditions 
  • Designed for everyday drivers who perform oil changes at OE (original equipment) recommended intervals  
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Mann-Filter – Spin On Oil Filter: Ideal For Any Type of Oil (Part No.W 719/45)

Spin On Oil Filter: Ideal For Any Type of Oil

from

$17.79
More and more performance, less and less consumption – in order to meet the high demands placed on modern engines, automobile manufacturers demand the absolute highest levels of performance from the engine components used. The oil circuit is of central importance here, as only clean engine oil can permanently ensure consistent engine performance. If the circulating oil is not permanently freed of impurities and combustion residues, protection from wear is no longer guaranteed. In the worst case, this may even damage the engine. If you want to play it safe when choosing an oil filter, choose MANN-FILTER. They are designed for modern high-performance oils and can stand up to even the most demanding technical challenges. As the application areas of oil filters and the demands placed on them vary, MANN-FILTER oil filters are available in different designs.

Product Features:
  • Outstanding dirt holding capacity
  • Prolongs service intervals and continues to meet the technical requirements of high-performance engines
  • Offers even faster and optimized oil supply when starting the engine
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Carquest Premium – Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles (Part No.84561)

Oil Filter: Ideal for Synthetic Oil, Protection up to 10,000 Miles

from

$15.79
Carquest Premium oil filters are built for durability, utilizing enhanced components to protect engines for the extended drain intervals of modern vehicles using conventional or synthetic lubricants. Our oil filters are built with synthetic blend media that provides 2X the capacity and up to 10,000 miles of protection. Carquest Premium filters feature silicone sealing gaskets for better performance in extreme temperatures. Carquest Premium oil filters meet or exceed original equipment (O.E.) specifications and meet the requirements for maintaining a new vehicle warranty.

Product Features:
  • Protection for up to 10,000 miles
  • Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters
  • Solid metal end caps are designed to be long lasting
  • Silicone anti-drain back valve for engine start-up protection
  • Heavy-duty steel baseplate provides additional strength to resist leakage
  • Heavy gauge steel canister withstands high pressure operating conditions
  • Silicone sealing gasket performs better in extreme temperature conditions and longer drain intervals (silicone gasket is new feature introduced as a running change)
  • Meets requirements for maintaining new vehicle warranties
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1998 Audi A6 Quattro Filters and PCVs

You count on your 1998 Audi A6 Quattro to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Filters and PCVs. With 26 Filters and PCVs ranging in price from $2.98 to $84.99, you’re sure to find everything you need for your 1998 Audi A6 Quattro.

Brands matter. If you want to shop a specific Filters and PCVs brand, we stock 14 different brands like K&N, Carquest Premium, and Mann. 1998 Audi A6 Quattro Filters and PCVs start as low as $2.98!

One of the best ways to find top quality OEM or aftermarket Filters and PCVs is by asking professionals. Short of that, you can shop with confidence thanks to our 374 extensive product reviews on 1998 Audi A6 Quattro Filters and PCVs. Some of the top-rated Filters and PCVs products we carry are Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration with 5.0 stars and Oil Filter: Ideal for Conventional Oil, Protection up to 5,000 Miles with 3.7 stars.

Did we mention you can order your Filters and PCVs from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Filters and PCVs inventory for your 1998 Audi A6 Quattro below to get started!

Top-Rated Filters and PCVs Brands For Your 1998 Audi A6 Quattro

Trusted Filters and PCVs OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1998 Audi A6 Quattro running right for years to come. In our inventory you’ll find brands like K&N, Carquest Premium, Mann, and even more.

Popular Carquest Premium Filters and PCVs

You’ll find popular Carquest Premium brand products across Transmission Filters and Air Filters. All are waiting to get your 1998 Audi A6 Quattro back on the road. Some of the top-rated Carquest Premium products in these categories are:

Top-Rated Purolator Filters and PCVs


If Purolator are what you’re looking for, our inventory holds plenty. We stock Purolator brand Filters and PCVs for your 1998 Audi A6 Quattro, and some of our most reviewed Purolator parts include:
PurolatorONE Air Filter
from $29.49
(135)
PurolatorONE Air Filter
Air Filters
Fuel Filter
from $35.99
(7)
Fuel Filter
Fuel Filters
Fuel Filter
from $27.99
(1)
Fuel Filter
Fuel Filters

FAQs for 1998 Audi A6 Quattro Filters and PCVs

What are the most purchased Filters and PCVs for the 1998 Audi A6 Quattro?

Out of 26 Filters and PCVs for the 1998 Audi A6 Quattro, the most popular in our inventory are:
Air Filter
from $10.99
(8)
Air Filter
Air Filters

What are the top-rated 1998 Audi A6 Quattro Filters and PCVs?

Top-rated Filters and PCVs for your 1998 Audi A6 Quattro based on customer reviews/ratings are:
Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration
from $69.99
(10)
Engine Air Filter: Washable Filter, Increase Horsepower & Acceleration
“Get Big Air Flow…Highly Recommended…Buy This !!!”
Oil Filter: Ideal for Conventional Oil, Protection up to 5,000 Miles
from $11.29
(3)
Oil Filter: Ideal for Conventional Oil, Protection up to 5,000 Miles
“Standard oil filter. Nothing special. It fits my 01 Passat 4motion and filters my oil. Ok happy.”
Automatic Transmission Filter Kit
from $22.49
(1)
Automatic Transmission Filter Kit
“Excellent”