repaired · 2024 Q2
Gasoline: turbo/supercharger
Risk. Worn bearings can cause the turbine wheel to contact the turbocharger housing or cause the shaft to break, causing an engine stall and increasing the risk of a…
2015 Audi S8Problems, recalls & complaints
NHTSA has logged 6 owner complaints about the 2015 Audi S8, most often about the engine. It is covered by 4 safety recalls, and for recall 22V-178 the manufacturer reports only 79% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through March 20, 2024. Updated daily.
Complaints by system
Where the 2015 Audi S8 has problems
6 complaints grouped by the system owners reported.
5Engine
1Power train
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 5 | 0 |
| Power train | 1 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
4 recalls
2015 Audi S8 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2022 Q2
Body: hood
Risk. If the seal contacts hot engine components, there could be an increased risk of a fire.
repaired · 2020 Q2
Delivery: hoses, lines/piping, and fittings
Risk. Leaking fuel, in the presence of an ignition source, increases the risk of fire.
repaired · 2019 Q4
Delivery: hoses, lines/piping, and fittings
Risk. A fuel leak in the presence of an ignition source can increase the risk of a fire.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Audi.
Best & worst years
2015 vs. every other S8 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the S8 median. How we score
'07'08'09'13'14'15'16'17'18'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2015 Audi S8 safety ratings
2015 Audi S8 4 DR AWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
- Stability control: Standard
- Forward collision warning: Optional
- Lane departure warning: No
2 investigations
NHTSA defect investigations
Federal investigations that included the 2015 Audi S8, and the recalls they led to.
- Engine Stall - Turbo FailureNo recall
- Engine Stall - Turbo FailureLed to recall 22V-178
In owners' words
What S8 owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
The contact owns a 2015 Audi S8. The contact stated he was unable to start the vehicle. The contact stated that the Electronic Power Control (EPC) warning light was illuminated. The contact was able to start the vehicle, but the vehicle was shaking while driving. The contact also stated the vehicle…
Turbo failure and positive crankcase ventilation (PCV) failure. Whining noise from PCV and smoke out the tail pipes with no power. Had to pay out of pocket to remedy issues.
WAS DRIVING ON A SATURDAY AFTERNOON DOWN A BUSY STREET WHEN MY CAR STARTED SPUTTERING AND HAD VERY REDUCED POWER. I WAS ABLE TO EVENTUALLY GET TO THE SIDE OF THE ROAD AND SHUT THE CAR OFF. TRIED STARTING THE CAR AFTER A RESTING PERIOD AND CAR WOULD NOT START. LET IT SIT LONGER AND FINALLY GOT IT TO…
Own a 2015 S8?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.