Most common 2014 Audi S8 problems
Share of the 6 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Audi S8 complaints by model year
Best S8 years: 2008, 2017, 2020. Compare all years →
2014 Audi S8 recalls (5)
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.
Remedy: 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.
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.
Remedy: 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.
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.
Remedy: 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.
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.
Remedy: 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.
Visibility › Sun/moon roof assembly
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2013-2014 Audi A8 and S8 vehicles equipped with a standard sunroof, manufactured March 12, 2013, through July 15, 2013. These vehicles are equipped with a standard sunroof glass panel that may shatter.
Remedy: Volkswagen will notify owners, and dealers will replace the sunroof glass panel, free of charge. The recall began on October 21, 2013. Owners may contact Audi of America at 1-800-822-2834.
NHTSA defect investigations
Federal safety investigators have looked into 2 possible defects involving the 2014 Audi S8:
Engine Stall - Turbo Failure
On March 29, 2021, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) 21-009 after the agency received 58 reports alleging engine stalling in 2013-2016MY Audi vehicle models A8, S6, S7, S8 & RS7. The subject vehicles are equipped with 4.0L, twin-turbocharged engine. Complainants reported that the vehicles stall suddenly with no warning while driving on the highway or in city traffic.
Engine Stall - Turbo Failure
On March 29, 2021, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE 21-009) after the agency received 58 reports alleging engine stalling in 2013-2016MY Audi vehicle models A8, S6, S7, S8 & RS7 equipped with the 4.0L, twin-turbocharged engine. Complainants reported the vehicles would stall with no warning while driving at highway or city traffic speeds.
What 2014 Audi S8 owners say
Engine & cooling
The contact owns a 2014 AUDI S8. The contact stated while driving 60MPH the vehicle began to vibrate violently from the engine compartment; the cabin filled up with smoke and the vehicle tailpipe began producing smoke. The contact was unable to pull over and manually moved the vehicle into the shoulder. The contact stated no warning lights were illuminated The vehicle was towed to the contact's residence, then the vehicle was towed to a local mechanic where it was diagnosed with needing turbo to be replaced. The vehicle was not repaired. The manufacturer was informed of failure and told the contact that they were unable to assist. The failure mileage was approximately 65,000.
The contact owns a 2014 Audi S8. The contact stated while driving 65 MPH, the low oil warning light illuminated on the instrument panel. Upon visual inspection of the engine compartment, the contact observed that the engine oil level was abnormally low, prompting him to add oil to the engine. However, afterwards the contact stated that the low oil warning light illuminated again, after which there was a burning odor inside the vehicle, and the vehicle lost significant motive power. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 58,000.
2014 Audi S8 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.0L 8-cyl turbo | 8-speed automatic | AWD | 15 / 26 / 18 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2014 Audi S8 a good car?
Based on 6 owner complaints filed with NHTSA, the 2014 S8 rates average: about as many complaints as a typical year of the S8 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2014 Audi S8?
The engine & cooling — 4 complaints, 67% of all complaints for this model year, most often about engine › gasoline › turbo/supercharger. Next are the fuel & propulsion system (1) and windows, wipers & sunroof (1).
How many recalls does the 2014 Audi S8 have?
There are 5 recalls for the 2014 Audi S8, the most recent from March 23, 2022 (turbo/supercharger). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Audi S8?
The best years by complaints, compared at the same age, are 2008, 2017 and 2020. See the full Audi S8 years comparison.
At what mileage do 2014 Audi S8 problems happen?
The median mileage reported in complaints is about 58,000 miles; 40% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.