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Audi S6 C8 (5th Generation)
2020–2026 · C8 · sedan
Major split between markets. US C8 S6: 2.9L TFSI biturbo V6 (444 hp), 8-speed Tiptronic. Europe C8 S6: 3.0L TDI V6 with electric powered compressor (mild-hybrid, no US version due to Dieselgate fallout). Quattro AWD. Sedan only in the US. Twin-touchscreen MMI Touch interior carries over from the A6 C8.
Watch out: Too new for a defining failure pattern. The 2.9T V6 is shared with the Porsche Macan and RS5 and broadly considered reliable. Twin-touchscreen MMI software polish has been the consistent forum gripe — multiple updates issued.
What your S6 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 size255/40R20✓ 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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