Platform guide · covers B9 and B9.5
Audi RS 5 B9
The B9 RS 5 runs the 2.9-liter twin-turbo member of the EA839 family, the DECA, through an 8-speed automatic and quattro. US cars span 2018 through 2024 across the B9 and B9.5 phases, as a coupe and a Sportback.
- Production
- 2018 to 2024
- Chassis
- F5
- Platform
- MLB evo
- Engine
- EA839 2.9T
- Transmission
- ZF 8HP
- Drivetrain
- quattro
- Body
- Coupe, Sportback
- Factory rating
- 444 hp
Factory specifications
| Engine | Family | Displacement | Induction | Output |
|---|---|---|---|---|
| 2.9TT V6 | EA839 2.9T | 2.9 L · 6 cyl | Twin-turbo | 444 hp · 443 lb-ft |
Catalog data: BuildBay vehicle dataset (US market).
- 2.9TT V6: The DECA twin-turbo 2.9 — the RS 4/RS 5 member of the EA839 family.
Phases
- B92018 to 2020US coupe MY2018, Sportback from MY2019.
- B9.52021 to 2024Facelift for MY2021 — visual/infotainment refresh; 2.9T mechanicals carry over.
Owning and working on it
- Rated 444 hp and 443 lb-ft in US trim. The 2.9 twin-turbo is its own engine, not a tuned version of the single-turbo 3.0T in the S4 and S5.
- The coupe launched for MY2018; the Sportback body arrived for MY2019.
- The MY2021 facelift was a visual and infotainment refresh. The 2.9T mechanicals carried over unchanged.
- Same B9 electronic parking brake procedure as the rest of the platform: scan tool in and out around any rear brake job.
DIY jobs on this platform
Resolved the way BuildBay resolves them for a garage vehicle of this platform: jobs the identity confirms, jobs that apply only if the car has the equipment, and the rows where verified vehicle-specific data exists.
- Applicable jobs
- 617
- If equipped
- 22
- Documented rows
- 13
Where the work is
- Engine maintenance74
- Exterior & body46
- Suspension & steering44
- Electrical, battery & charging41
- Brakes40
- Fuel, intake & forced induction40
Verified vehicle-specific rows
Each row names a job and the scope its data was verified for. Values stay in the product, attached to an exact vehicle; the label says how far the row is verified.
- Change rear differential fluidAudi · AWDCommunity-verified — confirm for your VIN
- Change sport-differential fluidAudi · AWDUnverified — treat as a lead
- Drain and refill coolantAudi / VolkswagenCommunity-verified — confirm for your VIN
- Perform walnut-shell carbon cleaningEA888 / EA839 / EA837 / EA855Community-verified — confirm for your VIN
- Register replacement batteryAudi / Volkswagen / BMWCommunity-verified — confirm for your VIN
- Replace automatic-transmission pan and filter8HP / ZF8Community-verified — confirm for your VIN
- Replace engine mountEA837 / EA839Unverified — treat as a lead
- Replace front CV axleAudi / VolkswagenCommunity-verified — confirm for your VIN
- Replace front lower control armAudi · B8 / 8K / 8T / B9 / 8W / F5Community-verified — confirm for your VIN
- Replace PCV valveEA839Unverified — treat as a lead
- Replace rear brake padsAudi · B9Community-verified — confirm for your VIN
- Replace rear CV axleAudi / VolkswagenCommunity-verified — confirm for your VIN
- Retract electronic parking brakeAudi · B9Community-verified — confirm for your VIN
Tools that come up
The tools required most often across the jobs that apply here. BuildBay checks them against your inventory before a job starts.
- Jack stands (pair, rated)46 jobs
- Low-profile floor jack46 jobs
- Wheel chocks46 jobs
- Metric socket set (1/4" + 3/8")37 jobs
- OBD scan tool (OBDEleven / VCDS)33 jobs
- Torque wrench (1/2", 30–150 ft-lb)32 jobs
- Breaker bar (1/2")31 jobs
- Triple-square (XZN) bit set24 jobs
Same platform architecture
Shared architecture scopes research and job discovery. It never implies parts interchange.
- Audi RS 6 C8
- Audi RS 7 C8
- Audi S4 B9
- Audi S5 B9
- Audi SQ5 FY
- Porsche Cayenne 9Y0
Add this vehicle to your garage
Pick the Audi RS 5 B9 by phase, engine, and gearbox, and BuildBay keeps its maintenance, mods, tools, and costs together from the first record.