FaultScore

Audi A8 electrical problems

35 of the 362 complaints filed about the Audi A8 are about the electrical system — 10% of everything owners reported. The worst model year for it is 2019.

35

Complaints

10%

Share of all complaints

0

Crashes

3

Fires

Electrical System complaints by model year

1997 A8 1 2.9%

Median failure at 63,700 miles

1999 A8 2 5.7%
2001 A8 1 2.9%
2004 A8 4 11.4%

Median failure at 28,000 miles

2005 A8 1 2.9%

Median failure at 12,000 miles

2006 A8 2 5.7%

Median failure at 145,000 miles

2009 A8 1 2.9%
2011 A8 4 11.4%

Median failure at 81,000 miles

2012 A8 1 2.9%

Median failure at 121,000 miles

2013 A8 2 5.7%
2014 A8 1 2.9%
2015 A8 3 8.6%

Median failure at 14,713 miles

2019 A8 8 22.9%

Median failure at 45,000 miles

2020 A8 2 5.7%
2021 A8 2 5.7%

What owners said

2021 Audi A8 Potomac, MD

ELECTRICAL SYSTEM

See attached document for complaint. I took my 2021 AUDI A8 to Audi Rockville located at 1125 Rockville Pike; Rockville, MD 20852 on July 18 to fix the recall. After waiting for 2 hours at the dealership, they told me they must go to BestBuy to buy a USB stick and asked if we could re-schedule which we did. I then came back on September 30, and again after 2 hours of waiting, they told me the USB port in the car is not working and that I must pay over $1000 to replace the USB Port so that they can perform the recall. As such we could not get the update done. I followed up with Audi North America Headquarters in Michigan, and they basically told me the same thing that the dealer told me. This issue is very disappointing for two reasons: 1) How can a $100,000+ car be updated using a USB. I have never used the USB port until this Recall. 2) If Audi has no other way to take care of the recall, then Audi should take responsibility for replacing the USB port. The dealership said the USB Port is not part of the recall and it is not under warranty. I am driving a car that is under NHTSA recall violation and Audi should take responsibility for updating the software either by replacing the USB port or perhaps through Wi-Fi. Can NHTSA file a complaint with Audi North America?

NHTSA complaint #11728863 — an unverified report by a vehicle owner.

2015 Audi A8 Alamogordo, NM

ELECTRICAL SYSTEM

So I purchased a vehicle from wright drive in El Paso, Texas. I was driving home back to Alamogordo which is 90 miles away, maybe 80 I realized there was no adaptive cruise control. So I messaged dealership. They told me that there was nothing they could do. It's not a safety issue. I got the vehicle home the next day. I found out the whole front suspension was bad. I kept hearing a noise when I would drive over bumps and it was really loud. I contacted the dealership, told them that the suspension was bad. They told me to take it to Audi to have them look at it. It came out to like $8,000 worth of repairs. They told me they would not pay that and I could return the vehicle for a full refund. I told them okay. I would be there in 3 days because I was working. They said that was fine. I get there 3 days later they told me that was no longer an option. So I got stuck with the car that needed $8,000 worth of repairs and then another four for more suspension parts. New breaks the 3,000 to fix the adaptive cruise control. I understand the adaptive cruise control is not really a big deal but the fact that they lied about me being able to return the vehicle and now I'm stuck with the vehicle thing that I've paid more fixing a suspension then the car is even worth. I'm a single father with two kids. I cannot afford to keep paying for a car that they should have taken back to begin with because it's illegal to sell a vehicle that has saved the issues

NHTSA complaint #11691917 — an unverified report by a vehicle owner.

2006 Audi A8 Waconia, MN

ELECTRICAL SYSTEM

The headlight warning light came on. The headlight on left had gone out. Opening the headlight assembly ( a 2,000 to 6000 dollar part) there are about 20 wires inside the assembly, every wire was partially bare, the insulation has cracked off every wire inside the assembly. A small wire harness connects everything inside the light, the harness is not available to fix it. The cost to have a harness for the car available, should not be a issue. We need lights and to replace a headlight is a 20 dollar fix not a 2500 dollar. Fix.

NHTSA complaint #11641952 — an unverified report by a vehicle owner.

2019 Audi A8 Union, MI

ELECTRICAL SYSTEM

My grandson and I got in the car after being in a Lego store for 20 minutes. We tried to start the car to leave but the car started the electronic starting procedure but stoped. All kinds of malfunction and failure lights came on and EVERYTHING LOCKED UP. WE WERE TRAPPED IN THE CAR AND COULD NOT ESCAPE

NHTSA complaint #11595729 — an unverified report by a vehicle owner.

2021 Audi A8 New York, NY

ELECTRICAL SYSTEM

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.

NHTSA complaint #11581253 — an unverified report by a vehicle owner.

2013 Audi A8 Lincoln, CA

ELECTRICAL SYSTEM

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 [XXX] in Roseville, CA highway Interstate [XXX] traveling towards Anaheim with stops along the way. We were coming down [XXX] 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. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF I

NHTSA complaint #11573971 — an unverified report by a vehicle owner.

2011 Audi A8 Marshall, IL

ELECTRICAL SYSTEM

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

NHTSA complaint #11558252 — an unverified report by a vehicle owner.

2019 Audi A8 Farmington Hills, MI

ELECTRICAL SYSTEM

Electrical system malfunction. Faulty generator shut dow. All electrical systems and eventually shut the car down.

NHTSA complaint #11547511 — an unverified report by a vehicle owner.

2019 Audi A8 Fredericksburg, VA

ELECTRICAL SYSTEM

Electrical Malfunction light came on and it says to pull over and cut your car off and also contact your dealer. This is very scary because you may be in am area that is very isolated or dangerous to stop. This is very disturbing. This is a known problem by Audi. The vehicle is currently at the Audi dealership. There were no warnings prior to this.

NHTSA complaint #11518587 — an unverified report by a vehicle owner.

2019 Audi A8 Wallington, NJ

ELECTRICAL SYSTEM

While driving on highway my car experienced massive electrical malfunction. All systems shut down (including dashboard) and engine cut off. I think it was a miracle that I was able to pull over to the roadside parking lot without any accident. The issue was caused by faulty design of the starter-alternator combo that may render the car undriveable (single point of failure). I had to use a tow track to get my car to nearest dealership where it is right. I think it is extremely dangerous to have cars on the road with possibility of total breakdown without any warnings. My car has only 43000 miles on it so this was totally unexpected and created safety hazard for any all drivers nearby. I just checked some internet boards for Audi and apparently there are many other cars that experienced that issue.

NHTSA complaint #11518498 — an unverified report by a vehicle owner.

2019 Audi A8 Great Lakes, IL

ELECTRICAL SYSTEM

Hello, On April 6th, 2023, at 12 pm, my car experienced a electrical malfunction within the Start/Stop system, which didn’t posed an immediate threat to my life. Later that day, the car stalled on me while driving, causing a highly dangerous situation on a busy street during peak traffic hours. Multiple error codes appeared, and the transmission failed, leaving me in a perilous position. It is alarming that AUDI is aware of this life-threatening issue, yet no recall has been issued thus far. I urge NHTSA to take swift action and hold AUDI accountable for this critical failure, which endangers not only my life but the lives of others on the road. Please refer to the link below for evidence supporting my claim. The issue is widespread, affecting various models of Audi, including the 2019 A6, A7, and A8. https://www.audiworld.com/forums/a7-224/2019-a6-a7-a8-electrical-failures-3037487/

NHTSA complaint #11515953 — an unverified report by a vehicle owner.

2019 Audi A8 Kent, WA

ELECTRICAL SYSTEM

Alternator/Start stop generator is bad. Car stopped dead in the intersection.

NHTSA complaint #11503884 — an unverified report by a vehicle owner.

2019 Audi A8 at 45,000 miles Provincetown, MA

ELECTRICAL SYSTEM

The contact owns a 2019 Audi 8. The contact stated while driving approximately 40 MPH, the message "Electrical Malfunction" was suddenly displayed before the vehicle lost motive power and stalled. The vehicle failed to restart. The vehicle was towed to the local dealer who diagnosed that the alternator was faulty and needed to be replaced. The manufacturer was notified of the failure and informed the contact that the parts needed to repair the vehicle were not available. The failure mileage was 45,000.

NHTSA complaint #11503613 — an unverified report by a vehicle owner.

2019 Audi A8 Key West, FL

ELECTRICAL SYSTEM

Message appeared on display Jan 7 2023: "Electrical system: Malfunction! Please contact service" The trunk lid opened while I was driving, the a/c quit (I am in Key West!), the auto start/stop quit. I had heard of many other Audi owners whose car just quit, so I scooted home and parked. I had it towed to Coral Gables FL at my expense, and the dealer told me it was an alternator problem that needed to be replaced. None available in the US, could be months before it's repaired. Car is 2019 Audi A8 with 42,000 miles.

NHTSA complaint #11502629 — an unverified report by a vehicle owner.

1999 Audi A8 San Francisco, CA Fire

ELECTRICAL SYSTEM

After water damage to the bottom level of the seat an electrical fire started. It burned through and melted the plastic facing on the right side of the seat near the seat adjustment mechanism releasing toxic fumes we have so far been unable to abate. The manufacturer has been unresponsive in addressing this hazard. The damage is available for inspection. The toxic fumes are a health hazard as was the fire. The dealer inspected the damage and refused to repair it. The Bureau of Auto Repairs in California also inspected the damage. There were no warning lights activated.

NHTSA complaint #11495139 — an unverified report by a vehicle owner.

2020 Audi A8 NEW York, NY

ELECTRICAL SYSTEM

Start system malfunction causes the car to randomly lose ALL power and roll back when at a stopped, causing the car to be disabled and unable to start again. Faults indicate a failure of the 48V belt driven starter generator. Parts to repair defect are severely back ordered, taking months to obtain.

NHTSA complaint #11494953 — an unverified report by a vehicle owner.

2013 Audi A8 Richmond, TX

ELECTRICAL SYSTEM

There is an open recall: 16V619000 Which applies to a set of VIN numbers. This same issue happened on my vehicle and my VIN is not part of the recall. Other VIN numbers should be included in this recall like mine. I had to get the repaired on my own for $2500 because this recall isn’t showing up for my vin number

NHTSA complaint #11486393 — an unverified report by a vehicle owner.

2020 Audi A8 Bay City, MI

ELECTRICAL SYSTEM

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.

NHTSA complaint #11435705 — an unverified report by a vehicle owner.

2009 Audi A8 Iowa City, IA

ELECTRICAL SYSTEM

1: My passenger door sensitive door closing sensor is not working 2: my sunroof is off track and makes noises 3: battery cord is corroded. There is no where in the world to get 1 right now apparently. I bought a brand new battery and car still doesn’t pull energy from the battery so I’m scared the car won’t start very soon

NHTSA complaint #11419727 — an unverified report by a vehicle owner.

2014 Audi A8 Beaumont, CA

ELECTRICAL SYSTEM

WHEN THE SUNROOF RETRACTS OR CLOSES IT MAKES A LOUD NOISE (SOUNDS LIKE AN MRI MACHINE). I KEEP IT CLOSED FOR POSSIBLE GLASS CRACKING SAFETY REASONS. THIS OCCURS WHILE IDLE OR DRIVING ON ANY STREET/HIGHWAY SURFACE. AUDI THINKS ITS A MOTOR ISSUE AND IS NOT COVERED BY WARRANTY OR ANY RECALL.

NHTSA complaint #11339466 — an unverified report by a vehicle owner.

Other Audi A8 problems