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2015 Audi S8 problems, recalls and owner complaints
What the 2015 Audi S8 has been recalled for and what owners report, from official government data. Updated October 25, 2026.
- 4safety recalls
- 6owner complaints
- 0crash reports
- 0fire reports
- 0injuries reported
6 complaints, against an average of 6 for the other 4 Audi S8 model years.
Every Audi S8 model year with its number of owner complaints. Pick a year to compare.
What goes wrong with the 2015 Audi S8?
The components named most often in the 6 owner complaints. One complaint can name several, so the shares can add up to more than 100%.
Has the 2015 Audi S8 been recalled?
4 U.S. safety recalls. Repairs are free at a franchised dealer; some are done over the air.
Engine And Engine Cooling: Engine: Gasoline: Turbo/Supercharger 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 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 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 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.
Is the 2015 Audi S8 recalled in the UK or Europe?
Recalls issued by the UK's DVSA and through the EU's Safety Gate system that cover this model and build period. European models can differ from U.S. ones, and "years estimated" means the recall gave no build dates, so confirm your own car with your registration or VIN.
UK DVSAThe engine compartment seal may become deformed and loose
Risk: The engine compartment seal may become deformed and come loose in unfavourable circumstances
Fix: A retaining plate will be fitted on the affected vehicles to prevent the engine compartment seal from coming loose.
EU Safety GateThe wire coil profile used in the radiator tank seal may be deformed due to the very variable temperatures within the engine compartment.Over time, and under unfavourable conditions, this could lead to the radiator seal coming loose. A loose radiator seal could come into contact with hot components in the engine compartment as a result of vibrations during driving. This could lead to the seal and, potentially, neighbouring components starting to smoulder, increasing the risk of fire.
Measures: Type of economic operator taking notified measure(s): Manufacturer; Category of measure(s): Recall of the product from end users; Date of entry into force: Unknown
What do 2015 Audi S8 owners report?
6 of the 6 complaints, the most recent for the most-reported components, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.
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 complete range of EA824 equipped vehicles (S8, RS7, S6, S7, A8 etc). Average mileage of those reported are 65k miles or so. Hundreds of similar issues are reported via various Audi forums and social media groups. Poses a fire risk since coolant leaks all over the front of the engine. Poses another…
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 had stalled. The contact took the vehicle to an independent mechanic and was informed that the oxygen sensor and oil pressure switch needed to be replaced. The vehicle was repaired but continued to experience the failure. The contact took the vehicle back to an independent mechanic and was referred…
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 START BUT CAR HAD VERY LITTLE POWER WHEN PRESSING ON THE GAS , BUT I WAS ABLE TO GET TO MY LOCAL AUDI DEALER FOR A DIAGNOSIS. ($190.00 + TAX). I INFORMED THE TECHNICIAN OF THE ISSUES I SAW AND ALSO THAT I HEARD A WHINING NOISE COMING FROM THE ENGINE. DIAGNOSIS WAS THAT BOTH TURBOS HAD SIGNIFICANT…
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.
I WAS DRIVING AT HIGHWAY SPEED WHEN THE ENGINE SUDDENLY STARTED TO SHUDDER AND LOSE POWER. THE CHECK ENGINE LIGHT IMMEDIATELY STARTED TO FLASH AND THE ENGINE STALLED. I WAS STOPPED IN A BUSY HIGHWAY DURING RUSH HOUR. I EVENTUALLY GOT THE CAR TO A SAFE LOCATION AND PULLED THE TURBO AIR INTAKE TO INSPECT THE TURBO WITH A BORESCOPE. THE BANK 1 TURBO HAD DAMAGED ITSELF. THIS SHOULD NOT HAPPEN ON A CAR WITH ONLY 50,000 MILES.
2015 Audi S8: questions owners ask
Is the 2015 Audi S8 reliable?
NHTSA data alone cannot rate reliability, but it shows what owners reported. Owners filed 6 complaints with NHTSA about the 2015 Audi S8; the most common categories were engine (5, 83.3%), power train (1, 16.7%). There are 4 safety recalls.
What are the most common problems with the 2015 Audi S8?
Across 6 owner complaints filed with NHTSA, the categories mentioned most often are engine (83.3% of complaints), power train (16.7% of complaints). One complaint can name several components.
Does the 2015 Audi S8 have any recalls?
Yes. NHTSA lists 4 recalls for the 2015 Audi S8; the most recent (campaign 22V178000, 2022-03-23) concerns Engine And Engine Cooling: Engine: Gasoline: Turbo/Supercharger. Recall repairs are free at a franchised dealer; check your VIN at nhtsa.gov/recalls.
Check your own S8
Counts are a starting point, not a verdict: popular models collect more complaints because more of them are on the road, and NHTSA does not verify individual reports. To see whether a recall is still open on your car, enter your VIN at nhtsa.gov/recalls (U.S.) or your registration at check-vehicle-recalls.service.gov.uk (UK). Had a safety problem? Report it to NHTSA; complaints are what trigger investigations and recalls.
Data: NHTSA Office of Defects Investigation recall and complaint databases (public domain), DVSA vehicle recalls (Open Government Licence v3.0), EU Safety Gate alerts (© European Union), retrieved October 25, 2026. Model year 2015 only.