2019 Audi A6

My wife was travelling on the interstate at about 75 mph, when all of the dash lights flashed in red that there was an electrical system failure. At this time, while driving in the fast lane, it seemed like all systems including steering and power brakes failed. She managed to make it across four lanes of traffic before the car died completely. Once we got the car towed to the dealership, they informed us that it was a failure with the 48V generator and that it would be at least 2 months to fix the problem because the part was on back order. It has now been 2 and a half months, so I called the dealership and they told me they have 31 of these to change and my car is still a few weeks away from be repaired.

Mid December the day after I purchased my 2019 a6 the 48V starter generator failed while driving with my son in the car. Alerts came up as electronics issue and to pull over. Very quickly it stopped dead in road. They told me it is a known issue, and they have multiple A6s waiting for this part. It has been over a month and still unknown when this part will be available. This should be a recalled item, but is under warranty.

On Thanksgiving Day I received a warning on my display: "Electrical system: malfunction! Please contact Service." The next day I contacted Ellis Audi in Atlanta and was able to drive about 3 miles to take the car to them. At the end of the day they said I needed a new Alternator/Generator and the car should not be driven. They said the part was on backorder and they already had about 11 cars needing the same part. Since then they received 7 parts but now have about 20 cars on their lot requiring repair.

Starter generator/alternator problem. I was driving and suddenly got electrical malfunction issue and slowly all electronics in the car stopped working. Got the car towed to Audi service center and the service representative told me it was starter generator issue and it’s widespread. Dropped the car on 11/15/22 and still waiting for my car to be repaired.

The contact owns a 2019 Audi A6. The contact stated that while operating the vehicle, the warning message "electrical malfunction" suddenly displayed along with a red battery icon. After turning off and restarting the vehicle, the message remained displayed, but the battery icon changed to yellow. The vehicle was taken to the local dealer who diagnosed that the starter generator was faulty and needed to be replaced; however, the part was on backorder and would not be available for several months. The manufacturer was not yet contacted. The failure mileage was 42,000. The contact stated that the replacement part is now available but they have to wait for the installation. Audi has been notified and is aware of the issues.

While driving my 2019 Audi A6 Premium Plus I received error messages: "electrical system malfunction contact service", then "start stop system malfunction contact service", then "electrical system malfunction stop vehicle safely". I went on an Audi owner internet forum and read about others with the same errors. Reports from others indicated that in about 40 miles from the first message appearing, all systems will completely shut down including the engine while you are driving. This could leave you stranded in the roadway if you are not able to pull over in time and requires a tow; the vehicle cannot be relied upon to get you to a service center at that point. My vehicle was in a parking lot at the time for a few hours. I was able to start the vehicle. It presented the first two messages immediately. I was able to drive another 10 minutes to arrive at home safely. On my way home the check engine light came on and as I got to my driveway "electrical system malfunction stop vehicle safely" appeared again. Two days have passed (where I did not operating the vehicle anymore) and I've now had the vehicle towed to my Audi dealer / service center. My service advisor called me back this afternoon saying that they confirmed starter / generator / alternator needs to be replaced. The alternator (only) is now on order for me with no ETA. He said the last one they fixed with this issue took 42 days. He said he has 6 vehicles on the lot with the same issue. This issue appears to be popping up for all early builds that has the Audi 48v MHEV (mild hybrid battery system). Other owners report they needed their 48v and sometimes 12v batteries replaced. As I mentioned earlier they only ordered the alternator at this point; I'm worried that my batteries cannot be trusted after this issue as apparently the cells in the 48v become unstable after entering this state.

Warning appeared for electrical malfunction contact dealer. Within 15 minutes of driving to the dealer, electrical failure please pull over appeared. My antilock breaks, transmission, and finally the entire electric panel failed. The car entirely stopped while in traffic. I was unable to even turn on hazard lights. It would not turn back on. It required towing to audi dealership. I have been told by Audi the starter generator died.