2019 AUDI A6 Complaints

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.

The contact owns a 2019 Audi A6. The contact received notification of NHTSA Campaign Number: 22V155000 (Electrical System) however, the part to do the recall repair was not yet available. The contact stated that the fuel gauge was not working as designed. The vehicle was taken to the dealer where it was diagnosed but no cause for the failure was found. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 13,514. VIN tool confirms parts not available.

Component Failed: Believed to be Starter Generator Part number 4N0-903-028-P on 11/04/2022 Cause: Ended up stranded on the side of the highway at night with no power, to include power steering and hazard flashers. Car had to be pushed out of the high way to avoid being hit by traffic. Problem is ongoing and easily reproducible. Manufacturer confirmed faulty Starter Generator on 12/15/2022 From first indicator lamp of Electrical issue to full shut down of car was about 20 minutes.

The electrical system malfunctioned driving on the busy 422 expressway. Going at 55mph. Car dash lights up warning signs like electrical system failure, transmission, brake, power steering failure and the car shuts down in the middle of the road. Steered it to the side of road. Car would not start. Had to get it towed to dealer, Car has 33000 miles. The dealer has confirmed the failure. The component has been inspected by the dealer. Could have had a serious life threatening accident posing death or injuries to self and others.

Starter/Generator Alternator failed and caused the battery to die ultimately leading to losing full power of the car on highway. Warning lamps were present and indicated "electrical system malfunction and contact the dealer for service." Car lost full power on the way to dealership and almost resulted in a crash. Component has been inspected by the Audi Dealer and confirmed to be the issue. Symptoms appeared very quickly and within 30 minutes of the symptoms the car was inoperable.

A warning message appeared that there is an electrical system problem. I arranged to bring to dealer for service the next day. While driving to dealer, multiple malfunction messages appeared on dashboard. Eventually all displays went black and shortly thereafter the engine stopped. I rolled to a stop. Car was dead. Audi stated it needs a replacement starter/generator. Very dangerous as it happened to me on an interstate. My research shows that this is a not uncommon problem.

While driving on an interstate highway, an electrical fault warning appeared. 5 minutes later, a series of warnings appeared pertaining to a whole host of Audi systems, and I suddenly lost power to the car. I coasted off the highway to the shoulder, where the car died. I was told by the dealership that the issue is a generator, and that it's a common issue affecting A6s. It was truly disconcerting to lose power, without much warning, when driving.

I was driving on the interstate when the vehicle gave a warning saying "electrical system malfunction, contact dealership". I went to the dealership as I was within a couple of miles and they said it could be many things and they would need to evaluate it the following week. I left with the car and attempted to drive it back the following week on the scheduled appointment. The vehicle did not make it back to the dealership. While driving on the interstate back to the dealership, a message saying, "Electrical system failure, safely exit roadway" came on. I was able to exit off the interstate immediately into a parking lot. While I was trying to exit, multiple warning lights came on saying the crash sensors were inoperable, transmission was inoperable, camera system was inoperable, and the car started shaking as if the engine was loose under the hood and it shut off and would not restart. This took less than about 90 seconds as I was at an exit and already in the right lane on the interstate. Audi Care came and towed the vehicle and the dealer says the alternator has gone bad and it is on backorder. This is exceptionally dangerous because if I were not at an exit and in heavy traffic, this could have happened while I was in the middle of the interstate and the vehicle lost all power. I've since read Audi forum and found this exact scenario has happened to many drivers who were not as lucky to be near an exit or under warranty. Audi should recall the vehicle because it puts the driver in a very dangerous situation. I was stuck in an empty parking lot for several hours waiting for a tow but I consider myself lucky after reading the experience of other drivers. My car has been in the shop for three weeks now and I'm not sure when they will have it fixed. My warranty expires in the next few months so I may end up having to pay for repairs later because my warranty expired while the car sits at the dealer and I won't be able to test if it has been resolved.

The electrical system failed while driving at highway speeds on the interstate. Car lost power, all safety systems shutdown and I had to navigate the car while coasting off the road. Car would no longer start and left me stranded on the side of the interstate for 2hrs. I have since learned from the audi service department that the 48V generator had failed and caused this situation.