QUATTRO MEETS PRACTICALITY

B5 through B9 — Audi's compact sedan with available Quattro AWD and turbo power.

Audi A4 HERITAGE

THE QUATTRO COMPACT

The Audi A4 has been the German compact sport sedan since 1994. The B5 (1.8T) launched the tuner-friendly chassis, the B6/B7 added the K04 turbo upgrade culture, and the B8/B9 brought EA888 turbocharged 2.0T engines that share parts with the VW Golf R / Jetta GLI.

MOTORMIA A4 builds span B5 1.8T stage-3 tuners, B7 RS4 V8 swap projects, B8/B9 ECU-tuned dailies, and the S4 supercharged V6 generation. Many parts cross-fit with VW MK6/MK7 platforms.

Audi A4 ON MOTORMIA

THE NUMBERS

3,135
Parts that fit
3,000+
MOTORMIA Builds
EBC
#1 brand by SKUs
$711
Average MSRP

READY TO BUILD YOUR AUDI A4?

Pick your year and trim to shop verified-fit Audi A4 parts.

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Verified Fitment

Audi A4 Parts

8164 parts available

Shop aftermarket parts for the Audi A4. Verified fitment, free shipping, 30-day returns.

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DISC BRAKE ROTOR

Bosch

DISC BRAKE ROTOR

Engine Oil Filter

Mahle

Engine Oil Filter

D

Dorman

Steering Parts OEM: Control Arms

S

Stoptech

SEMI-LOADED CALIPER

BULB 12V 29/8W W3X16Q S8

Hella

BULB 12V 29/8W W3X16Q S8

SENSOR PARKING ASSIST

Hella

SENSOR PARKING ASSIST

Engine Cylinder Head Gasket - 61-36390-00

Victor Reinz

Engine Cylinder Head Gasket - 61-36390-00

Engine Cylinder Head Gasket - 61-37435-10

Victor Reinz

Engine Cylinder Head Gasket - 61-37435-10

DISC BRAKE PADS

Bosch

DISC BRAKE PADS

AUDI A4 1.8L 2.0L 2007> AUDI A5 1.8L 2007> AUDI Q5 2.0L TDI 20112012 MAHLE

Clevite

AUDI A4 1.8L 2.0L 2007> AUDI A5 1.8L 2007> AUDI Q5 2.0L TDI 20112012 MAHLE

SENSOR CRANKSHAFT VAG

Hella

SENSOR CRANKSHAFT VAG

C

Clevite

AUDI CABRIOLET A4 S4 20032007 ALLROAD 20012005 A6/S6 20012004 MAHLE CABIN

Cabin Air Filter LA 1294

Mahle

Cabin Air Filter LA 1294

TURBOCHARGER BOOST SENSOR

NGK

TURBOCHARGER BOOST SENSOR

B

Bosch

BUSHING

VEHICLE SPEED SENSOR

NGK

VEHICLE SPEED SENSOR

BRAKE PAD SET, DISC BRAKE

Hella

BRAKE PAD SET, DISC BRAKE

Gates 5/8in x 5/8in x 4 7/32in

Gates

Gates 5/8in x 5/8in x 4 7/32in

G

Gates

Gates Engine Coolant Thermostat Seal

AUDI VOLKSWAGEN 2771CC 2.8L ATQ 2000-2005

Mahle

AUDI VOLKSWAGEN 2771CC 2.8L ATQ 2000-2005

BRAKE PAD SET DISC BRAKE

Hella

BRAKE PAD SET DISC BRAKE

SENDER UNIT INTAKE AIR TEMPERATURE

Hella

SENDER UNIT INTAKE AIR TEMPERATURE

BRAKE PAD SET DISC BRAKE

Hella

BRAKE PAD SET DISC BRAKE

THERMAL PRODUCTS

Clevite

THERMAL PRODUCTS

Engine Coolant Reservoir

Mahle

Engine Coolant Reservoir

AUDI 1781CC 1.8L (AMB) 2004-2006

Mahle

AUDI 1781CC 1.8L (AMB) 2004-2006

THERMAL PRODUCTS

Clevite

THERMAL PRODUCTS

IGNITION COIL 4 PIN FOR AUDI/VW/SK

Hella

IGNITION COIL 4 PIN FOR AUDI/VW/SK

STEERING TIE ROD END

Dorman

STEERING TIE ROD END

CRANK SHAFT PULSE SENSOR

Hella

CRANK SHAFT PULSE SENSOR

Gates 5/8in x 5/8in x 10 1/32in

Gates

Gates 5/8in x 5/8in x 10 1/32in

DISC BRAKE PAD

Hella

DISC BRAKE PAD

D

Dorman

ELBOW HOSE

BRUSH HOLDER

Bosch

BRUSH HOLDER

C

Clevite

SLEEVE ASSEMBLY RING SET

CRANKSHAFT SENSOR

Bosch

CRANKSHAFT SENSOR

C-TEK Ceramic Brake Pads

Stoptech

C-TEK Ceramic Brake Pads

CRANKSHAFT SENSOR

Bosch

CRANKSHAFT SENSOR

VOLKSWAGEN / AUDI 1984CC 2.0L CCTA CBFA CAED 20082014 REAR MAIN SEAL

Clevite

VOLKSWAGEN / AUDI 1984CC 2.0L CCTA CBFA CAED 20082014 REAR MAIN SEAL

C

Clevite

TURBOCHARGERS

Stoptech PQ Pro Brake Pads Front Audi Volkswagen A4 A4 Quattro Passat S3 1996 - 2000

Stoptech

Stoptech PQ Pro Brake Pads Front Audi Volkswagen A4 A4 Quattro Passat S3 1996 - 2000

ROT.-SPEED SENSOR

Bosch

ROT.-SPEED SENSOR

~(0.7 lbs. 6X4X4)~ ThermostatIntegral 05-09 Audi 3.2L V6

Mahle

~(0.7 lbs. 6X4X4)~ ThermostatIntegral 05-09 Audi 3.2L V6

C

Clevite

PISTON PIN BUSHING

B

Bosch

DISC BRAKE PADS

M

Mahle

08-17 Audi/VW 1.8L/2.0L Vacuum Pump Moutning Gasket

MAP SENSOR

Bosch

MAP SENSOR

EL FIELD RHEOSTAT

Bosch

EL FIELD RHEOSTAT

FILTER-DRIER AND ACCUMULATOR

Clevite

FILTER-DRIER AND ACCUMULATOR

C

Clevite

A/C SWITCH

Mahle auto part

Mahle

TURBOCHARGER MOUNTING GASKET SET 05-00 Volkswagen Passat 1.8L; 06-00 Audi A4 A4 Quattro 1.8L

AUDI/VW 1.8LAND 2.0L 2013-2018 Cylinder Head Bolts

Mahle

AUDI/VW 1.8LAND 2.0L 2013-2018 Cylinder Head Bolts

AUDI VOLKSWAGEN 1.8L 2.7L 2.8L 3.0L 1997-2006

Mahle

AUDI VOLKSWAGEN 1.8L 2.7L 2.8L 3.0L 1997-2006

G

Gates

Gates Power Steering Repair Kit

COOLANT HOSE

Gates

COOLANT HOSE

S

Stoptech

BRAKE HOSE

C

Clevite

TIMING

~(1.8 lbs. 5X3X2)~ VW-Pass 1.8L AWP AWV and APH 1999-2006 (M10 X 1.5 X 115mm 6 point #9 torx)

Mahle

~(1.8 lbs. 5X3X2)~ VW-Pass 1.8L AWP AWV and APH 1999-2006 (M10 X 1.5 X 115mm 6 point #9 torx)

M

Mahle

Volkswagen ABA SOHC 2.0L 1993-2002

Audi Volkswagen 1984cc 2.0L 2008-2014

Mahle

Audi Volkswagen 1984cc 2.0L 2008-2014

FAQ

Frequently Asked Questions About the Audi A4

What are the best aftermarket parts brands for the Audi A4?

The top brands MOTORMIA owners trust for Audi A4 builds are EBC, PowerStop, H&R, Bilstein, and Magnaflow. The catalog carries 3,135 parts that fit the A4. Use the fitment selector to filter to your specific year and trim, then browse by category or brand.

What's the best trim or sub-model of the Audi A4 to modify?

The most-modified A4 trims are S4 (especially B5 / B7 / B8 / B9 supercharged). These trims typically came with performance-focused suspension, brakes, and engine options that give a higher starting point. That said, the A4's engine family (1.8T, 2.0T EA888, 3.0T supercharged (S4), 4.2 V8 (B7 RS4)) shares aftermarket across most trims, so base-trim builds with the right bolt-ons can match higher trims on power.

What's the typical mod path for a Audi A4?

For most Audi A4 builds, the recommended modification order is: ECU tune → intake → downpipe → suspension → turbo upgrade. This sequence stages upgrades so each mod supports the next — tuning unlocks gains from intake/exhaust, suspension keeps the added power planted. MOTORMIA member builds let you see exact part lists for Audi A4 builds at every power level.

How does the Audi A4 aftermarket compare to the BMW 3 Series?

The Audi A4 is the Quattro AWD compact sedan with the EA888 2.0T platform shared across Audi/VW. On MOTORMIA, 3,135 parts fit the A4 across 3,000+ active member builds, with an average part MSRP of $711. The decision usually comes down to which platform you own — both have full bolt-on catalogs.

Will any Audi A4 part fit my year and trim?

Not always. The Audi A4 has had multiple generations and engine changes (e.g., 1.8T, 2.0T EA888, 3.0T supercharged (S4), 4.2 V8 (B7 RS4)), and parts are generation- and trim-specific. MOTORMIA's catalog uses verified fitment data — every product page shows exactly which years and submodels of the A4 a part fits. Use the fitment selector at the top of any page to pre-filter to your build.

Does MOTORMIA offer returns on Audi A4 parts?

Yes. Most Audi A4 parts on MOTORMIA are eligible for our 30-day return policy provided they're unused, uninstalled, and in original packaging. Special-order parts are flagged with a "Special Order" badge on the product page. Manufacturer warranties are processed through MOTORMIA on your behalf.

MOTORMIA APP

Build your Audi A4 with Mia

Personalized Audi A4 mod recommendations, verified fitment from real A4 owners, and a garage that tracks every part on your build.

  • Mod recommendations tuned to your A4 year, trim, and submodel
  • Verified fitment data from 3,000+ Audi A4 member builds
  • Performance gain estimates based on real-world results
  • Save your garage and track every part you've installed