Power Train Problems of Audi A8

Audi A8 owners have reported 14 problems related to power train (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Audi A8 based on all problems reported for the A8.

1 Power Train problem of the 2021 Audi A8

Failure Date: 04/04/2024

Total electrical shutdown over about 2 minutes. Stranded on road. All electrical systems failed rapidly. Strongly suspect this is part of known bsg/alternator issues with this model.

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2 Power Train problem of the 2013 Audi A8

Failure Date: 01/29/2024

Me and my son were traveling on a business road trip from my home in Lincoln, CA to do business at several companies and end up at a customer located in anaheim, CA. We started on highway 5 in roseville, CA highway interstate 5 traveling towards anaheim with stops along the way. We were coming down highway 5 on the southside of the grapevine at the speed limit of 70 mph, when the engine began to stall, and the steering also began to lock up. We began losing control of the vehicle and engine power was failing and stalling. In addition, the stall was impacting the car battery. We had difficulty steering the car and controlling the direction of the car and getting the car to the side of the road. Once we were at the side of the road, we looked up the closest Audi dealership, fortunately we were 3. 9 miles away from Audi dealership in van nuys, CA. Once on the side of the road the vehicle initially would not restart the engine stalling had drained the battery. We waited on the side of the road for approx. . 40 minutes and were able to restart the car and drive with much difficulty to the keys Audi van nuys dealership. We were able to barely get into the dealership parking lot when the car completely stalled, we went in and met with the service manager. We explained what had happened, and with the service teams help we pushed the vehicle into a bay to get reviewed. I have purchased eight (8) Audi’s over the past years for me and my wife. The service manager promised to review the problem. Typically, Audi service will give you a vehicle to drive but the had no vehicles available, so they told us they would take us to a rental car company and cover the cost of the vehicle except for the insurance on rental car, which we had to pickup at a rate of $ 35. 00 per day. As we were on a work trip we had to hustle to our customers as we had a meeting scheduled for 2:30 pm at manna beverage in anaheim, CA. We went to our meeting and then returned to the Audi dealership in van nuys.

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3 Power Train problem of the 2011 Audi A8

Failure Date: 12/01/2023

Ecu starting to malfunction as a coolant leak valve is leaking into it. There is a recall for these models but not for my specific car but I do believe my car is affected because my car has a coolant leak that I personally can’t find and my car was just worked on by Audi indianapolis and they did not see any coolant leaks either. It was mentioned to me by another Audi A8 owner and it’s making sense to me as the way everything began to fail on my car until I detached the battery and attached it back it worked fine but sometimes the ecu will begin to fail for adaptive cruise control randomly, then it will work again. These are symptoms of coolant leaking and affecting the ecu, and I can’t afford to pay for that to be fixed because it would cost more than what the car is worth but I would like to see if my car was affected by this recall because I genuinely believe this is what is happening.

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4 Power Train problem of the 2021 Audi A8

Failure Date: 07/04/2022

Delay in change gear especially from full stop, vehicle recoil, jump, jolt, sometimes with loud noise.

5 Power Train problem of the 2019 Audi A8

Failure Date: 02/17/2022

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.

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6 Power Train problem of the 2020 Audi A8

Failure Date: 08/23/2021

8/23/2021-I was slowing down at a red light and getting ready to stop but the light turned green and so high pushed on the gas to go before I got to a full stop. The battery warning light came on so I turned around to go back home can you swap cars. My fiancé had to go to work that day and took the vehicle. On his way back going 60 mph on the highway, the power to the vehicle shut down and he was unable to do anything other than slow down and pull off to the side of the road. The vehicle was sent into the Audi dealership and they changed out the 48v battery in the trunk. They also ordered an alternator but did not install it because it start it back up. A couple weeks later (9/25/2021) the same thing happened at a stop sign as I was slowing down but not at a complete stop and hit the gas and the battery light came back on. That light means the battery is disconnected from the engine and once the power runs out, it will shut down again. So I took it straight to the dealership and left it there until they can take a look at it. It’s at the dealership now. There seems to be a flaw in the (stop/go)system of the vehicle when the engine wants to turn off at a stop and when to restart the engine to go. Causing a disconnect of the battery in the trunk to the engine.

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7 Power Train problem of the 2014 Audi A8

Failure Date: 05/21/2021

Driving home from church, heard a rattle, like a stick was stuck underneath. Then felt loss of power. No warning/engine check light, but car stalled while I was turning left off a highway. When car stalled I had no warning, and no steering or brakes. Husband was able to assist with getting care off road and out of oncoming traffic. We were worried about being able to avoid pedestrians at the corner as we had no control and they did not seem to be aware of the emergency. Looked online and saw lots of similar stories. Exactly like what happened to us. Mechanic says turbo chargers failed. One is sheered off and one is rubbed/failing. Audi quoted us $14,000 to repair. Car is at 80,700 miles which seems to be 700 miles out of warrantee. All service work has been done by Audi and recorded. Audi is unwilling to help with this issue. This has to be the most scary incident driving I have ever had. It was shocking that there was no warning. And I lost both steering and braking assist while crossing a travel lane and making a turn. It appears that Audi is aware that they have filter/check valve issues for the turbo charger oil supply. They have since upgraded these parts but have failed to replace the faulty parts when cars like ours go in for service. They have also failed to warn people of this potential hazard. We have called Audi corporate and they say there is nothing they can do to help.

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8 Power Train problem of the 2017 Audi A8

Failure Date: 04/01/2021

The 2017 A8l 4. 0t is equipped with a engine start-stop system that switches off the engine when the car is motionless, to save fuel. The system is supposed to restart the engine immediately when the brake is released. This system malfunctions routinely and refuses to restart, leaving me with an immobile car at stoplights and intersections, putting me and my family at risk. This safety hazard has caused two accidents. In the first incident, I parked in my spot and got out of the car. The Audi rolled backward and collided with the car parked behind (insurance claim filed). In the other incident, I was stopped at an intersection, at an incline. The car failed to restart when I took my foot off the brake and rolled back, colliding with the truck behind me. My rear bumper was damaged, truck was not damaged. The car was inspected multiple times, and problem was reproduced by the Audi dealer. They attempted fixes, but failed to solve the problem. No warning lights or message appeared to alert me to this start-stop system failure.

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9 Power Train problem of the 2015 Audi A8

Failure Date: 01/29/2021

Turbo failure at 57,000 miles. Car died while in traffic while going down the road.

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10 Power Train problem of the 2013 Audi A8

Failure Date: 03/29/2020

I was driving on the highway, the vehicle epc light came on. Vehicle began to run rough, and shortly after died out completely. Luckily there was no one behind me when the car died, and that I was in the right lane and was able to limp onto the shoulder. Waited for tow truck. Had car towed to dealer where a faulty turbocharger was diagnosed as the reason for vehicle breaking down.

11 Power Train problem of the 2013 Audi A8

Failure Date: 02/20/2020

2x turbo damage 66000kilometers.

12 Power Train problem of the 2016 Audi A8

Failure Date: 06/24/2016

I don't have a complaint, per se, I am alerting you to the fact that the Audi A8 has the same shifter as the Jeep cherokee that has been in the news lately. Same supplier, zf.

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13 Power Train problem of the 2001 Audi A8

Failure Date: 06/15/2015

Tl- the contact owns a 2001 Audi a-8. The contact statd that upon trying to change gears into drive, the vehicle would not move forward and that there was no response upon pressing the acceleration pedal. The vehicle was able to be placed into reverse but not into drive. The contact stated that the independent mechanic inspected the vehicle and stated that the fuel filler neck needed to be replaced which was causing the failure. The contact was not included in NHTSA campaign id number: 08v397000 (power train) and NHTSA campaign id number: 01v259000 (fuel system, gasoline). The vehicle was to be further diagnosed by the independent mechanic. The manufacturer was notified of the failure. The approximate failure mileage was 86,000. Dyd.

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14 Power Train problem of the 1997 Audi A8

We want information regarding the odometer "rollback" (changing from kilometers to miles). Does this constitute odometer fraud if sticker was not on the door when we purchased this vehicle? we want to know if all legal requirements were met for importation to the u. S. From mexico in 1999. And were all taxes and/or penalties paid in full? also were all document requirements complied with? vehicle id number is not on the dash on left-hand side, visible from outside.

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Other Common Power Train related problems of Audi A8


Safety Ratings of A8 Cars
Fuel Economy of A8 Vehicles
A8 Service Bulletins
A8 Safety Recalls
A8 Defect Investigations