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 Category:exterior components Parts

2182 parts available

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

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W

WOLF PROD.

VELOURMAT CUSTOM DASH COVER BY DASH

W

WOLF PROD.

DASH BOARD COVER

ENGINE CRANKSHAFT POSITION SENSOR

Walker Products Inc. - Sensors

ENGINE CRANKSHAFT POSITION SENSOR

D

DAYCO HYDRAULIC

TIMING BELTS

MASS AIR FLOW SENSOR

Walker Products Inc. - Sensors

MASS AIR FLOW SENSOR

IGNITION KNOCK (DETONATION) SENSOR

Walker Products Inc. - Sensors

IGNITION KNOCK (DETONATION) SENSOR

MASS AIR FLOW SENSOR

Walker Products Inc. - Sensors

MASS AIR FLOW SENSOR

W

Walker Products Inc. - Sensors

ENGINE OIL PRESSURE SWITCH

TRAKMOTIVE auto part

TRAKMOTIVE

NEW CV AXLE

SPARK PLUG WIRE SET

Walker Products Inc. - Sensors

SPARK PLUG WIRE SET

MOTORAD oil filter

MOTORAD

ENGINE OIL FILTER CAP

MOTORAD oil filter

MOTORAD

ENGINE OIL FILTER CAP

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

MOTORAD oil filter

MOTORAD

ENGINE OIL FILTER CAP

WAGNER BRAKE auto part

WAGNER BRAKE

BRAKE ROTOR

D

DAYCO HYDRAULIC

NO SLAK IDL/TNSINRS PLLY

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

W

Walker Products Inc. - Sensors

IGNITION KNOCK (DETONATION) SENSOR

Goodyear auto part

Goodyear

ACCESSORY DRIVE BELT IDLER PULLEY FEADIDLER PULLEY

T

TRICO

WIPER REFILL

MANIFOLD ABSOLUTE PRESSURE SENSOR

Walker Products Inc. - Sensors

MANIFOLD ABSOLUTE PRESSURE SENSOR

MOTORAD auto part

MOTORAD

IGNITION COIL

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

OXYGEN SENSOR

Walker Products Inc. - Sensors

OXYGEN SENSOR

MOTORAD auto part

MOTORAD

TERMOSTATO

MOTORAD auto part

MOTORAD

THERMOSTAT & HOUSING

W

WOLF PROD.

SIGNATURE AUDI A5

W

WOLF PROD.

DASH BOARD COVER

TRICO auto part

TRICO

13" TRICO EXACT FIT WIPER

WAGNER BRAKE auto part

WAGNER BRAKE

CERAMIC DISC PAD SET

W

WOLF PROD.

DASHMAT CUSTOM DASH COVER

WOLF PROD. auto part

WOLF PROD.

DM AUDI A4

TRAKMOTIVE auto part

TRAKMOTIVE

NEW CV AXLE

W

WOLF PROD.

SIGNATURE AUDI A5

MOTORAD auto part

MOTORAD

IGNITION COIL

ENGINE CAMSHAFT/CRANKSHAFT POSITION

Walker Products Inc. - Sensors

ENGINE CAMSHAFT/CRANKSHAFT POSITION

MOTORAD auto part

MOTORAD

VAPOR CANISTER PURGE SOLENOID

MOTORAD auto part

MOTORAD

VAPOR CANISTER PURGE SOLENOID

R

Race Sport

3157 NORAPID FLASH CANBUS TURN SIGNAL LED BULBSSWITCHBACK VERSION IN WHITE/AMB

ENGINE CRANKSHAFT POSITION SENSOR

Walker Products Inc. - Sensors

ENGINE CRANKSHAFT POSITION SENSOR

T

TRAKMOTIVE

POWER REGULATOR ONLY

MASS AIR FLOW SENSOR

Walker Products Inc. - Sensors

MASS AIR FLOW SENSOR

W

WOLF PROD.

DASH BOARD COVER

T

TRICO

TRICO EXACT FIT FACTORY REPLACEMENT

WOLF PROD. auto part

WOLF PROD.

SM 17-18 AUDI A4

G

Goodyear

SERPENTINE BELT MULTI VBELTK MULTI VBELT

MOTORAD auto part

MOTORAD

ENGINE CAMSHAFT POSITION SENSOR

WOLF PROD. auto part

WOLF PROD.

DASH BOARD COVER

R

Rain-X

RX TRANSPARENCY+ 22' 5X1EA

TRICO auto part

TRICO

BEAM WIPER BLADE

S

STANDARD IGN

COIL ON PLUG COIL

MONROE SHOCKS & STRUTS strut brace

MONROE SHOCKS & STRUTS

STRUT-MATE MOUNTING KITS

WOLF PROD. auto part

WOLF PROD.

DASH BOARD COVER

STRONG ARM auto part

STRONG ARM

TRUNK LID LIFT SUPPORT

WAGNER BRAKE auto part

WAGNER BRAKE

SEMI-MET BRAKE PADS

STRONG ARM auto part

STRONG ARM

TAILGATE LIFT SUPPORT

W

WOLF PROD.

DASH BOARD COVER

WOLF PROD. auto part

WOLF PROD.

DSM

STRONG ARM auto part

STRONG ARM

TAILGATE LIFT SUPPORT

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