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Audi A4 B6 (2nd Generation)

2002–2005 · B6 · sedan

The B6 A4 is the second-generation Audi A4, on sale in the US from 2002 through 2005. Body styles include sedan, Avant wagon and cabriolet. Engines include the AMB / AWM 1.8T turbocharged four (K03 turbo, 170 hp US) and the 3.0 V6, with the BBK 4.2 V8 in the S4. The multitronic CVT was introduced for front-wheel-drive cars.

Watch out: 1.8T oil sludge from extended oil change intervals is the headline B6 issue and is covered by the Audi/VW oil sludge settlement extending warranty on affected cars. Owner reports of multitronic CVT failures, control arm wear (the 'eight-bow' front suspension), and timing belt service criticality (interference engine) are routine.

What your A4 takes

The parts and fluids that fit this generation. Specs we publish are confirmed against two independent sources; the rest fill in as we verify them.

  • Tire size205/65R15✓ VerifiedView
  • Wiper bladesNot catalogued yetFind yours soon
  • Engine oilNot catalogued yetFind yours soon
  • Oil filterNot catalogued yetFind yours
  • Engine air filterNot catalogued yetFind yours
  • Cabin air filterNot catalogued yetFind yours
  • Spark plugsNot catalogued yetFind yours soon
  • Headlight bulbsNot catalogued yetFind yours soon
  • BatteryNot catalogued yetFind yours soon
  • CoolantNot catalogued yetFind yours soon
  • Brake fluidNot catalogued yetFind yours soon
  • Transmission fluidNot catalogued yetFind yours soon
  • Tire pressureNot catalogued yetFind yours soon
  • Key fob batteryNot catalogued yetFind yours soon
  • Power steering fluidNot catalogued yetFind yours soon
  • Differential fluidNot catalogued yetFind yours soon
  • Serpentine beltNot catalogued yetFind yours soon
  • Brake padsNot catalogued yetFind yours soon
  • Wheel fitmentNot catalogued yetFind yours soon
  • Brake rotorsNot catalogued yetFind yours soon
  • ThermostatNot catalogued yetFind yours soon
  • A/C refrigerantNot catalogued yetFind yours soon
  • Fuel filterNot catalogued yetFind yours soon

Full clubhouse — owner Garage Lineage, common problems, year-by-year notes, and product picks — is on the build list.

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