2015 Audi S8 Problems, Complaints & Recalls
- Compared with other S8 years
- Not enough data 2nd of 16 for complaints
- Safety recalls
- 4 recalls: check your VIN
- NHTSA crash rating
- Not rated
Owners have filed 6 complaints with NHTSA about the 2015 Audi S8. That ranks 2nd out of 16 S8 model years for complaints. The most reported problem area is engine (5 complaints, 83%), typically at around 50,400 miles. There are 4 safety recalls covering this model year. NHTSA has opened 2 defect investigations involving it.
- 6owner complaints
- 4safety recalls
- 2NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2015 Audi S8 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Engine | 5 | 83% | 50,400 | — | — |
| Power Train | 1 | 17% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2015 Audi S8 recalls (4)
Tap a recall to see the problem, the risk and the fix.
Engine and engine cooling:engine:gasoline:turbo/supercharger
Problem: Volkswagen Group of America, Inc. (Audi) is recalling certain 2013-2017 A8, S6 Sedan, S7, S8, and 2014-2017 RS7 vehicles. The turbocharger oil supply strainer can become blocked, causing wear to the bearings due to lack of lubrication.
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 crash.
Fix: Dealers will replace the oil strainer and perform an oil change, free of charge. Owner notification letters were mailed August 4, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 21H7.
Structure:body:hood
Problem: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S8 and A8 vehicles. The seal around the engine compartment may come loose and contact hot engine components.
Risk: If the seal contacts hot engine components, there could be an increased risk of a fire.
Fix: Audi will notify owners, and dealers will install a retaining plate to prevent the engine compartment seal from loosening. The recall began September 4, 2020. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 51G6.
Fuel system, gasoline:delivery:hoses, lines/piping, and fittings
Problem: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2016 Audi A8 and S8 vehicles. The fuel supply line for the high pressure fuel pump may become porous and leak fuel.
Risk: Leaking fuel, in the presence of an ignition source, increases the risk of fire.
Fix: Audi has notified owners, and dealers will install a fuel pressure damper, free of charge. The recall began February 21, 2019. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20BM.
Fuel system, gasoline:delivery:hoses, lines/piping, and fittings
Problem: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2015 Audi S8 and A8 vehicles. The fuel supply line for the high pressure fuel pump may become porous over time, resulting in a fuel leak.
Risk: A fuel leak in the presence of an ignition source can increase the risk of a fire.
Fix: Audi will notify owners, and dealers will replace the fuel line, free of charge. The recall began July 20, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20AV.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
NHTSA defect investigations
- Engine Stall - Turbo Failure (EA22001) — opened Apr 4, 2022, closed May 26, 2023.
- Engine Stall - Turbo Failure (PE21009) — opened Mar 29, 2021, closed May 27, 2022, led to recall 22V178000.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
Water Pump and thermostat has a faulty design that causes coolant to leak either around the O Ring and/or the elbow. I am in my third water pump and thermostat with only 69,000 miles on the vehicle. Issue appears to be common on the EA824 (4.0 twin turbo) engine with hundreds of reports from the…
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…
Only 43,750 miles and the engine is being completely rebuilt. New cam adjusters, new timing chain tensioners, new timing chain guides... This shouldn't happen on a car with such few miles.
Other Audi S8 years
| Year | Complaints | Recalls |
|---|---|---|
| 2026 S8 | 0 | 1 |
| 2025 S8 | 0 | 1 |
| 2024 S8 | 0 | 1 |
| 2023 S8 | 0 | 2 |
| 2022 S8 | 0 | 3 |
| 2021 S8 | 1 | 8 |
| 2020 S8 | 0 | 4 |
| 2018 S8 | 0 | 1 |
| 2017 S8 | 0 | 2 |
| 2016 S8 | 6 | 3 |
| 2015 | 6 | 4 |
| 2014 S8 | 6 | 5 |
| 2013 S8 | 13 | 5 |
| 2009 S8 | 2 | 1 |
| 2008 S8 | 5 | 1 |
| 2007 S8 | 3 | 1 |
See all Audi S8 problems by year, every Audi model, or the Audi VIN decoder.
Similar Audi models
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Frequently asked questions
What are the most common problems with the 2015 Audi S8?
Owners most often report engine, power train problems. The top one, engine, accounts for 5 complaints.
Was there a recall on the 2015 Audi S8?
Yes, 4 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2015 Audi S8 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other S8 model years, the 2015 has too little data to compare. Always get a pre-purchase inspection and check the VIN for open recalls.