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Audi S5 B9 (2nd Generation)

2018–2024 · B9 · coupe

The B9 S5 launched in the US for the 2018 model year, replacing the supercharged 3.0 TFSI V6 with a new twin-scroll turbocharged 3.0 TFSI V6 (codename CWGD in early models) producing 354 hp. US body styles include coupe, cabriolet and Sportback, all with quattro and ZF 8-speed automatic.

Watch out: Too new for a settled long-term failure picture. Owner reports across the turbocharged 3.0 TFSI family include carbon buildup on intake valves (direct injection only on early B9), water pump life, and intake-manifold flap motor failures shared with the supercharged engine. Verify model-year-specific TSBs before publishing detail content.

What your S5 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 size245/40R18✓ VerifiedView
  • CoolantAudi G13 (TL-VW 774 J) · ~12.7 qtFrom owner's manualShop
  • 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
  • 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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