Engine complaints by model year
| Year | Complaints | Share of year's complaints | Typical mileage |
|---|---|---|---|
| 2021 | 1 | 20% | — |
| 2020 | 1 | 33% | — |
| 2019 | 4 | 29% | — |
| 2017 | 2 | 25% | — |
| 2016 | 6 | 55% | 45,000 miles |
| 2015 | 17 | 55% | 69,000 miles |
| 2014 | 12 | 67% | 58,000 miles |
| 2013 | 37 | 76% | 66,000 miles |
| 2012 | 4 | 36% | 103,000 miles |
| 2011 | 10 | 67% | 76,000 miles |
| 2009 | 1 | 20% | 9,000 miles |
| 2008 | 1 | 13% | 119,000 miles |
| 2005 | 1 | 17% | — |
| 2004 | 1 | 5% | — |
| 2001 | 1 | 17% | 9,000 miles |
| 1999 | 1 | 11% | — |
Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
What owners report
Complete Engine Failure - Audible Engine Knock Noise. Bank 2 Knock Sensor Faults stored & recorded at Audi of Hoffman Estates. Worked with Audi Of Amercia where they denied any wrongdoing or know issues. Bore socped engine at an independent shop & confirmed the cyclinder 6 bore was scored due to picton failure. Paid for a USED engine replacement & install out of my pocket on 8/5/2025 $4,655.57 Install Charge $6,760.49 Used Engine Cost On 9/8/2025 I recieved a letter in the mail from Auid Of America Outling a Piston Skirt Limited Warranty Extension. I reached out to Audi of Amercia the following day, outlined my experiece and was unaware how at no time during my phone calls & emails with Audi of America was a piston skirt issue never discussed. …
Vehicle engine would suddenly stop working, warning, "drive system malfunction: stop vehicle safely." It has happened 3 times within 3 days in the middle of the intersection. Dealers wouldn't take this issue seriously and they asked me to make an appointment online, which is scheduled to be 1 month away. The issue almost caused an accident twice. Adaptive cruise is also malfunctioning, engine random misfire, sunroof rattle, etc. This car is just so problematic it only has 20,000 miles on it and had scheduled maintenance performed just a month back.
The contact owns a 2016 Audi A8. The contact stated while driving at various speeds, the vehicle hesitated. Additionally, after starting the vehicle in the morning, the vehicle was shaking until the engine warmed up. The contact stated no warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed; however, the cause of the failure was not determined. The contact researched online and related the failure to NHTSA Campaign Number: 22V178000 (Engine and Engine Cooling), 20V397000 (Structure), and 19V057000 (Fuel System, Gasoline). The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 42,000.
My car was schedule for the 21H7 recall. I received 2 letters this year to have the recall work done. Audi of Pittsburgh's only available date was 12/08/22. I took the car in and later that day I got a call stating the recall was done back in March of this year. I told them it was not. Later I got a call saying it was done in April of 2019. I asked for the repair order and no one will provide it. To me it seems that Audi is looking for a reason not to perform the work.
The contact owns a 2015 Audi A8. The contact stated that while driving approximately 55 MPH, the check engine warning light illuminated and the vehicle that stalled. The vehicle was towed to the dealer. The dealer diagnosed the vehicle and stated that the engine failed and needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and opened a case. The approximate failure mileage was 110,000.
Engine stalled as i approached departure terminal at Newark airport. Dealer has inspected and determined the Turbo Impeller is bent and requires replacement. Car will not run. This is a known problem on Audi turbo engines apparently. Just prior to stalling the oil low light came on then the car stalled out creating a hazardous safety situation for a perfectly well maintained car.
Turbos failed. Was traveling home on a highway, when i pulled off the engine suddenly stalls out and loss of steering occurs as the engine system automatically puts you in park. Switching to neutral leads to a very 'leaden'/heavy driving feeling (Kind of like with no Power steering, but a little better). Able to get it restarted again with some effort. Car will stall out at any point in time when RPM is 1200 or less (you have about .25s to get it back out of that range or it stalls again). Power is sluggish. To avoid stalls, shifts must be rapid and neutral-shift+gas needs to be applied to prevent RPM from being below 1200. Made it home safely, but had it towed to dealership. Dealership notified me that it was a turbo failure, both impellers have become lodged in the side of turbo casing and are stalled out. Nothing preceded this; no engine lights or anything. …
My Audi Certified Preowned A8L, 4.0 TFSI suffered a complete turbocharger failure without any notice. The car went into service 9/30/2013. I purchased the car from the same dealer that originally sold the car in Stratham, New Hampshire on 12/26/2016. I purchased an extended warranty from the dealership for 8 years, 100,000 miles. Thus, the extended warranty expired on 9/30/2021. Car has always been serviced by this Audi Stratham Dealership. During a routine trip, car stalled, went into neutral upon entering a stoplight/intersection and would not re-start. Had to be towed. No modifications ever made to this vehicle. Recently had 75,000 mile service interval completed by Audi. Car now has 81,000 miles. Audi Technical Service Bulletin [21 Engine difficult to start, turbocharger damaged, V8 4.0TFSI 21 17 27 2044640/2 November 21, 2017. …
Related recalls (3)
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.
Engine and engine cooling › Engine › Engine control module (ECU/ECM)
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A8 and 2020-2021 Audi S8 vehicles. A missing sealing pin may allow moisture to enter the engine control module connector, possibly causing a control module malfunction.
Remedy: Audi will notify owners, and dealers will inspect the engine control module connector for a missing sealing pin, and install it, if necessary.
Engine and engine cooling › Engine
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2010-2013 Audi A8 vehicles manufactured May 15, 2010, to May 14, 2012. The affected vehicles have a coolant valve that may leak, allowing coolant to enter the engine control module causing a loss of power or the engine to stall.
Remedy: Audi will notify owners, and dealers will replace the coolant valve and inspect for coolant that has leaked through the electrical connector, free of charge. The recall is expected to begin October 19, 2016.
NHTSA investigations
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.
Frequently asked questions
Which Audi A8 years have engine problems?
By NHTSA complaints, the 2013 (37), 2015 (17), 2014 (12), 2011 (10) and 2016 (6) model years. Engine complaints make up 76% of all complaints for the 2013.
Is there a recall for Audi A8 engine problems?
Yes — 3 recalls, including 22V-178 (turbo/supercharger, Mar 23, 2022); 21V-111 (engine control module (ecu/ecm), Feb 24, 2021); 16V-619 (engine, Aug 24, 2016). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Audi A8 engine problems start?
Across all years, half of the complaints with a recorded mileage happened before about 67,000 miles; 23% happened before 50,000 miles.
What part fails most often?
Owners most often name the engine › gasoline (1 mentions), followed by the engine (1).
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.