2004 Audi A4 Quattro Fuel and Emissions Systems

Essential 2004 Audi A4 Quattro Fuel and Emissions Systems

Carquest Premium – Fuel Injector Connector (Part No.PTA1064)

Fuel Injector Connector

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$4.29
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.
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Dorman – Evaporative Emissions Purge Solenoid Valve (Part No.911-800)

Evaporative Emissions Purge Solenoid Valve

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$52.99
Engineered for a perfect fit and plug-and-play installation, this vapor canister purge valve is a direct replacement for the original equipment purge valve. It is critical to the evaporative emissions system and fulfills government requirements.

Product Features:
  • Direct replacement – this vapor canister purge valve fits and functions like original equipment to ensure proper function of your vehicle’s evaporative emissions system
  • Quality construction – manufactured from premium materials for a long service life
  • Excellent value – original equipment quality at a lower price
  • Quality tested – has undergone testing to ensure proper fit and performance
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Bosch – Air Temperature Sensors (Part No.C600084793BOS)

Air Temperature Sensors

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$30.12
Air Temperature Sensors measure the temperature of the incoming air to the engine. This information is provided to the Engine Control Module (ECU) to determine the correct amount of fuel needed for optimum performance and economy.

Product Features:
  • Extreme Temperature range: -40F – +260F
  • Robust Design with High Resistance to Engine Vibrations
  • OE or Better – Quality, Performance, and Function
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Elring – Fuel Injector O-Ring (Part No.C101262400ELR)

Fuel Injector O-Ring

from

$1.07
Fuel Injector O-Ring

Delphi – Fuel Injection Pressure Regulator (Part No.FP10312)

Fuel Injection Pressure Regulator

from

$172.99
100 years of OE experience, supplier to the world’s top automakers, OE Heritage and knowledge built into every aftermarket part.

Product Features:
  • Precisely manufactured internal valves, diaphragms and springs means excellent performance under all engine operating conditions
  • Quiet operation, no audible regulator noise
  • Robust diaphragm materials means longer life, improved durability and compatibility with a wide range of fuels
  • Consistent and predictable fuel pressure throughout system range of control provides great drivability
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Bosch – Oxygen Sensor: 4 Wire, 29.13" Long, Heated, Exact Fit (Part No.15158)

Oxygen Sensor: 4 Wire, 29.13" Long, Heated, Exact Fit

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$134.99
Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation advancements. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.  Bosch oxygen sensors deliver exceptional OE level reliability, performance and durability, further improving service life of the product. 

Product Features:
  • Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
  • Direct Fit includes OE Connector for easy installation
  • Performance meets or exceeds OE specifications
  • True Direct-fit OE connectors and harness
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Original Equipment – Vapor Canister Purge (Part No.B7098837385OEA)

Vapor Canister Purge

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$146.08
Vapor Canister Purge

Elring – Elring EGR Valve Gasket (Part No.B7100180816ELR)

Elring EGR Valve Gasket

from

$5.90
The Elring EGR Valve Gasket is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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Delphi – Mass Air Flow Sensor (Part No.AF10157)

Mass Air Flow Sensor

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$199.99
100% new; Delphi OE Technology Validated to match the vehicle applications; Manufactured to meet or exceed OE requirements

Product Features:
  • Delphi mass air flow sensors are the global benchmark for accuracy and signal noise
  • Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
  • Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
  • All parts are calibrated and tested to match the OE part
  • Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube.
  • Delphi OE technology validated to match the vehicle applications
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Pierburg – EGR Vacuum Solenoid (Part No.B7008274290APG)

EGR Vacuum Solenoid

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$111.91
EGR Vacuum Solenoid

Kayser – Vacuum Check Valve (Part No.O404032232KAY)

Vacuum Check Valve

from

$23.71
Vacuum Check Valve

VDO – Electric Fuel Pump Assembly (Part No.E3001312112VDO)

Electric Fuel Pump Assembly

from

$316.92
The VDO Electric Fuel Pump Assembly meets or exceeds the OE specifications for fit, durability and performance.

Product Features:
  • OE-Equivalent electric fuel pump
  • Direct fit for easy installation
  • OE connections and fittings
  • Highly efficient turbine design
  • Designed for quieter operation
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Original Equipment – Relay (Part No.P2020384416OEA)

Relay

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$12.88
Relay

Elring – EGR Adapter Gasket (Part No.B7102387165ELR)

EGR Adapter Gasket

from

$3.34
EGR Adapter Gasket

Carquest Premium – Vapor Canister (Part No.CPN1736)

Vapor Canister

from

$821.99
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.
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Carquest Premium – Fuel Cap: 10844, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10844)

Fuel Cap: 10844, Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack

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$39.49
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.

Product Features:
  • Passes all state and federal emissions tests
  • Manufactured from durable, long-life materials
  • Reduces air pollution with proper sealing and venting
  • Independently tested for emission control
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Dorman – Secondary Air Injection Pump (Part No.306-029)

Secondary Air Injection Pump

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$597.99
This secondary air injection pump is designed to match the fit and function of the original pump on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this secondary air injection pump is designed to match the fit and function of the original pump on specified applications
  • Restores functionality – reliable replacement for an original part that is leaking or has failed due to internal component failure
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Rein – Ambient Temp Sensor (Part No.P4025342395RIN)

Ambient Temp Sensor

from

$17.95
Ambient Temp Sensor

Bosch – Fuel Tank Sending Unit (Part No.E2030848445BOS)

Fuel Tank Sending Unit

from

$75.99
The Bosch Fuel Tank Sending Unit is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium aftermarket replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications for fit, form, and function
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Carquest Premium – Secondary Air Injection Pump Check Valve (Part No.EGA1181)

Secondary Air Injection Pump Check Valve

from

$49.99
The Secondary Air Injection system is an emission control device designed to pump fresh air into the engine exhaust system to reduce harmful emissions and convert the emission into harmless water vapor via a chemical reaction. These systems were used heavily in the pre-catalytic converter emission control period but found some application in vehicles with catalytic converter systems.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)

Fuel Injector O-Ring Kit

from

$7.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Elring – Throttle Body Gasket (Part No.C7001266071ELR)

Throttle Body Gasket

from

$8.33
Throttle Body Gasket

Dorman – Help – Breather Hose (Part No.48005)

Breather Hose

from

$24.99
This engine crankcase breather hose is designed to match the fit and function of the original hose on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this engine crankcase breather hose is designed to match the fit and function of the original hose on specified vehicle
  • Restores functionality – reliable replacement for an original hose that has failed due to pressure, heat and cracking
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Fuel Tank Cleaning Kit

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$12.49
To perform a complete fuel pump replacement, clean the tank every time. Order the Delphi Fuel Tank Cleaning Kit (Part FC01). Remember, the original pump went into a clean fuel tank, to ensure the same level of performance, the new pump should too. 100 ye

Product Features:
  • Helps avoid premature fuel pump failure
  • Lint free towel included
  • Low suds formulation
  • Removes harmful contaminants from the fuel tank
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Vaico – Q+ OE Quality Vacuum Non Return Check Valve (Part No.B2024299234VCO)

Q+ OE Quality Vacuum Non Return Check Valve

from

$43.99
The Vaico Vacuum Non Return Check Valve is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Made in Germany OE Quality
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications Q+ The Seal of Excellence
  • ALWAYS OEM QUALITY
  • ALWAYS MADE IN GERMANY
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Dorman – Mass Air Flow Sensor Connector (Part No.645-924)

Mass Air Flow Sensor Connector

from

$29.99
This mass air flow sensor connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this mass air flow sensor connector matches the appearance and function of the factory hardware on specified applications
  • Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Original Equipment – MAP Sensor (Part No.C7044666815OEA)

MAP Sensor

from

$47.94
Original Equipment Manifold Absolute Pressure/Manifold Air Temperature Sensors are designed to perform in harsh environments such as extreme temperatures and vibration, thermal and mechanical shock. The Original Equipment Manifold Absolute Pressure sensor is the ORIGINAL part, supplied in a plain box, with the car manufacturer’s logo on the part.

Product Features:
  • Designed for under-hood environments
  • All-silicon, solid-state microelectronic technology
  • Temperature compensation
  • Electromagnetic interference (EMI) protection
  • Air temperature output
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Bosch – MAP Sensor (Part No.C704435966BOS)

MAP Sensor

from

$556.04
Bosch Manifold Absolute Pressure (MAP) Sensors provide accurate air pressure measurement to very fine tolerances for efficient engine performance.

Product Features:
  • Extremely sturdy design with a special coating for resistance of harmful chemicals inside the intake manifold.
  • Bosch continually improves its MAP sensor designs with the latest chip technology.
  • Designed to meet or exceed your vehicle’s original equipment specifications (performance, driveability, economy, emissions)
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2004 Audi A4 Quattro Fuel and Emissions Systems

You count on your 2004 Audi A4 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 Fuel and Emissions Systems. With 81 Fuel and Emissions Systems ranging in price from $1.07 to $821.99, you’re sure to find everything you need for your 2004 Audi A4 Quattro.

Brands matter. If you want to shop a specific Fuel and Emissions Systems brand, we stock 21 different brands like Felpro, Bosch, and Dorman. 2004 Audi A4 Quattro Fuel and Emissions Systems start as low as $1.07!

One of the best ways to find top quality OEM or aftermarket Fuel and Emissions Systems is by asking professionals. Short of that, you can shop with confidence thanks to our 1,439 extensive product reviews on 2004 Audi A4 Quattro Fuel and Emissions Systems. Some of the top-rated Fuel and Emissions Systems products we carry are Evaporative Emissions Purge Solenoid Valve with 4.5 stars and Fuel Cap: 10827, Screw On, Direct Fit, Provides Tight Seal, 1 Pack with 2.5 stars.

Did we mention you can order your Fuel and Emissions Systems 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 Fuel and Emissions Systems inventory for your 2004 Audi A4 Quattro below to get started!

Top-Rated Fuel and Emissions Systems Brands For Your 2004 Audi A4 Quattro

Trusted Fuel and Emissions Systems OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2004 Audi A4 Quattro running right for years to come. In our inventory you’ll find brands like Felpro, Bosch, Dorman, and even more.

Popular Hitachi Fuel and Emissions Systems

You’ll find popular Hitachi brand products across Fuel Injectors. All are waiting to get your 2004 Audi A4 Quattro back on the road. Some of the top-rated Hitachi products in these categories are:
Mass Air Flow Sensor
from $164.99
(2)
Mass Air Flow Sensor
Air Flow Meters and Mass Air

Top-Rated Bosch Fuel and Emissions Systems


If Bosch are what you’re looking for, our inventory holds plenty. We stock Bosch brand Fuel and Emissions Systems for your 2004 Audi A4 Quattro, and some of our most reviewed Bosch parts include:

FAQs for 2004 Audi A4 Quattro Fuel and Emissions Systems

What are the most purchased Fuel and Emissions Systems for the 2004 Audi A4 Quattro?

Out of 81 Fuel and Emissions Systems for the 2004 Audi A4 Quattro, the most popular in our inventory are:
Fuel Injector O-Ring Kit
from $7.49
(109)
Fuel Injector O-Ring Kit
Fuel Injector O-Ring Kits
30 AMP 12 Volt 4 Pin Universal Relay
from $9.99
(8)
30 AMP 12 Volt 4 Pin Universal Relay
Vacuum Pump Relay
Fuel Tank Cleaning Kit
from $12.49
This product is not rated
Fuel Tank Cleaning Kit
Fuel Tank Cleaning Kits

What are the top-rated 2004 Audi A4 Quattro Fuel and Emissions Systems?

Top-rated Fuel and Emissions Systems for your 2004 Audi A4 Quattro based on customer reviews/ratings are:
Evaporative Emissions Purge Solenoid Valve
from $52.99
(11)
Evaporative Emissions Purge Solenoid Valve
“Fits my 07 Silverado 2500 classic, turned the EVAP code off. Old ones valve was stuck in the open position allowing vapor to constantly flow into the”
Fuel Cap: 10827, Screw On, Direct Fit, Provides Tight Seal, 1 Pack
from $16.49
(8)
Fuel Cap: 10827, Screw On, Direct Fit, Provides Tight Seal, 1 Pack
“Fits perfect & works fine. No check engine light (CEL) on the dash. It has a seal and is a right fit.”
Mass Air Flow (MAF) Sensor
from $169.99
(2)
Mass Air Flow (MAF) Sensor
“I know the price is really high for this part, but if you want reliability, efficiency and performance to be as it should, do not skimp on your MAF an”