Electrical System Problems of Audi A6 - part 2

Experienced alternator / generator failure while driving. Various vehicle systems starting shutting down and warning symbols were displayed. Vehicle stopped running on the highway and needed to be towed to the local Audi dealership. The sequence / progression of failure occurred over several miles with complete vehicle shutdown and stop in the middle of a busy highway intersection. Dealer confirmed it was an alternator / generator failure and it needed to be replaced. Seems to be a common occurrence with the A6 model. Dealer informed me it could be a couple of weeks to a couple of months for a repair as this item is on back order with Audi. Audi should issue an immediate recall or warning of this failure.

See all problems of the 2020 Audi A6 🔎.

Red start/stop malfunction light, then electical system yellow light malfunction, then red light electical system safely stop vehicle all with 2-3 min while driving in normal city conditions.

See all problems of the 2019 Audi A6 🔎.

Received a message for "electrical system failure" and drove ok at first but began receiving failure messages for various systems including but not limited to start/stop system, transmission, power steering, and crash avoidance systems. Soon after the entertainment and comfort system screens went blank followed by the dash screen and the car eventually just turned off as I was trying to find a safe place to pull over. Safety was put a risk as I was stranded on a busy road with no shoulder and because the battery was impacted my hazard lights only lasted a short time which left me and my vehicle exposed on the side of the road. The car was towed to the dealer (Audi of albany) who inspected determined the failure was related to a faulty ignition generator. The car is currently at Audi of albany and will be for at least 2 weeks so I am assuming it would be available for inspection. Many different warning lights appeared in the short time leading to total shutdown of the car. I recall a start/stop failure message, batter charge low, transmission failure light, power steering failure warning, adaptive cruise control, frontal collision avoidance among others. As stated above all screens in the car eventually turned off and the car fully failed on a main road and required a tow to the dealer.

This is my second entry/complaint regarding the same extremely dangerous steering malfunction. While driving my 2019 A6 (this time alone) in heavy rain the same warning message was displayed. The warning stated: steering malfunction, please stop the vehicle!. At which point the power steering locked-up & the engine powered down. As a result, I was unable to steer the vehicle. One again I was able to exit the highway safely. Being close to home with only a few turns, I was able to “limp” the car home, parked in my driveway and contacted Audi. Currently it’s at nyack Audi awaiting service on Monday 9/11. This is a huge safety issue and needs to be addressed. Doing a bit of online research & reading countless Audi blogs, I found out this to be a common issue with other Audis while driving in the rain. Fist time this occurred was 6/16/22, driving a 2016 s6. Tracking # for that entry is 11543563.

Car reported an engine restarter issue (with battery symbol) and recommended to contact the dealer. Car next shut down automatic restart system, and air conditioning stopped working. Within a short period of time (same day), the car listed a red battery symbol and advised to stop the car. After doing so and contacting the Audi roadside, the car was listing a series of issues on multiple symptoms while also saying in the warning message "still okay to drive". These systems included steering, braking, and what seemed to be other sensors the car powers. Finally (and within 5 minutes of the previous message of being okay to drive), the warnings were continuous and started including the transmission. The car stopped accelerating (we were on the expressway) and we thankfully got to the side of the road. This was an enormously dangerous situation as the car became fully disabled and we were subject to limited options of relief from a major traffic area. Within 30 minutes of being disabled, no electrical charge was present in the car, including emergency flashers, making the situation more dangerous as it was nighttime, so we had to abandon the car and walk down the expressway to find a hotel. Could not even put the car in neutral for the tow. Service is initially reporting a failure of the restart generator. This appears to be an alarmingly common issue with Audis.

See all problems of the 2021 Audi A6 🔎.

On my way to work, my car alerted me to an electrical malfunction and told me to call for service. When I called my Audi dealership, they told me to bring it in for service the following week. After asking if the car was safe to drive, they told me they wouldn't know unless they looked at the car. After pleading with them, they agreed to an appointment that day. On my way to the dealership - about 10 minutes into the trip on a highway, driving at highway speed, all electrical systems in the car started shutting down, and quickly - air conditioning, all safety features like lane keep assist, collision avoidance, etc. The steering became very heavy, the brakes were underperforming. After slowing down safely, the car shut down and was completely immobile and inoperable.

Car started by saying auto start /stop function malfunction, than electrical malfunction. After reading an Audi forum on Audi world there is thousand of customers complaining of the same issue. Apparently its a known issue with their 48v mild hybrid system and their alternator. Multiple dealerships blaming a faulty alternator. This issue has left people stranded and myself the vehicle a/c system stopped working and now parked at home until I can take to dealership. This issue is not a small one or impacting a small amount of consumers and more investigating should be done by your agency to be a recall on this. Thx.

1 / 2 · purchased 2019 Audi A6 prestige sedan in August 19, 2023 issue #1: transmission issue · day after purchase, transmission error appeared on dashboard during highway driving · car acted up a little, so quickly got off highway and drove home. Emotionally scared · called tow company to haul to dealership the next day · in the shop for few days and didn’t have a replacement vehicle. · also got some message about air bags · I have email communication about these issues with Audi issue #2: three safety recalls and periodic electrical warnings between 2019-2022 including. . . · inaccurate fuel level indicator o 6-7 months between recall notice and fix o consistently thinking about range #3: issue alternator · 6/warning message appeared on dashboard indicating battery issue, take for service · Friday, 6/took to an widely recognized car shop (specializing in imported vehicles) close by to check it. Mechanic summarized that the alternator voltage output is low. Battery test good. · recommendation was to replace alternator. Car shop couldn’t get replacement due to supply backlog. O 1:00 on the drive back on highway, frequent warning messages appeared on dash and the car suddenly started accelerated/decelerating. Immediately pulled onto the breakdown lane. O 2:30 after 1. 5 hours, tow truck came to pickup vehicle and take it home o 2:30 – 4: struggled to get car started to pull off trailer. Completely drained battery packs and kept reengaging the parking brake to prevent the car going in neutral (even manually). It took oil and shaking the car to slide it back onto the driveway. O scheduled service appointment for Tuesday 6/27 · Saturday, 6/called tow company to haul vehicle to the dealership. Estimated time for tow truck haul, roundtrip to dealership was 2. 5 hours of morning. I had complained Audi and they have informed me that they cannot do anything or reimburse for expenses. I have spent over $700 and put my life at risk.

The rear view camera on the vehicle stops working intermittently. I have provided photographs of this to the dealer. Their scanning of fault codes noted that the "right environmental camera faulty b127d04: rear environmental camera faulty. " the ticket also notes they found multiple sporadic faults for b127f04. Although they have admitted to finding faults with the camera, they refuse to fix this because they could not duplicate the exact behavior at the time it was in their shop. By definition, this is an intermittent issue. Audi had other model years recalled for this same issue. I believe this is a serious safety threat as one can't see things behind you and a person or vehicle could be hit. Audi is aware of this issue and is refusing to repair it under warranty.

Was driving and car gave me an electrical system malfunction, shortly after all lights (abs, esc, power steering, brakes) came on and vehicle died right after. I was traveling at 25-30mph and was unable to control my vehicle. I had to have the vehicle towed to a shop because it would not start after. After some research, it seems to be a problem with the 48v mild hybrid system. Thousands of known cases this should be a recall! extremely unsafe.

Starter warning followed by electrical system malfunction, these were followed by multiple warning lights (lane departure, adaptive cruise control, collision avoidance, etc) then 1 minute later transmission failure and engine failure imminent. . . . Pull over immediately and contact dealer. I turned into a road off main highway within a minute of the last two warnings and as I turned, my center mmi went blank then my electronic dash went blank, transmission went into neutral and the engine died all within a few seconds. Fortunately I was able to coast to a stop.

While driving the vehicle states that there was an electrical fault and to contact a service center. This was associated with a loss of drive power that made handling more difficult. A dealer advised me this morning that this is a common issue.

Massive safety liability here. My 2019 Audi A6 was on the highway traveling at 75mph on 4/25/2023 at noon when with no prior warning, all of the electrical systems started failing rapidly. In the course of 90 seconds, there was an electrical malfunction warning, quickly followed by malfunction warnings for steering, brakes, and cascading shutdowns of all systems like the transmission, abs, collision warning, lane departure, lights, hazard warning lights, instrument screens/clusters, hvac, windows- literally everything. A complete failure of every component and safety system while driving highspeed is extremely dangerous. Had this happened at night, I would have been bricked in the middle of the road without headlights, hazard lights, airbags, etc. The car had to be towed away to the dealership and is available for inspection. The dealer is aware of this issue and called it a 48 volt starter/ alternator issue which is apparently systemic/ widespread with 2019-21 Audi 48 volt architectures; parts are generally backordered for months. Please take note: there is an extremely high risk that someone will be killed and seriously injured as a result of this defect. The vehicle is awaiting inspection and repair at an Audi dealership. It is under extended manufacturers warranty at 50,700 miles. No other diagnostics/ inspections/ or reports have taken place yet.

The car literally stopped working while driving. All electrical components shut down. Unable to put the car into neutral to push it to safety. Had a hard time getting the vehicle towed because the parking break engaged somehow and we were unable to disengage it. Hazard lights did not work at all! extremely unsafe situation to be in, especially if on a highway or expressway with vehicles traveling nearby at high speeds.

Electrical system malfunction. Car will not run.

Message for "electrical system malfunction", then "start stop system malfunction", then "electrical system malfunction stop vehicle safely". Car was immobilized. Was driving on highway.

Two miles from home all sorts of electrical malfunction warning ?? lights appear. Too many to list here. Then car completely stops and all electricals shut down. This happened in the middle of a very busy three lane 45mph main artery. Stuck in gear, unable to push off side of road. After ten minutes or so of cars zooming around us, it started enough to get off road to safe place. Waited 4 hours in freezing cold for tow truck. Very scary incident for my wife and me, as we are in our 70s. Towed to my local Audi dealer. The problem seems to be with the “starter alternator” and is a national problem with 1000s of affected owners. Was told 29 vehicles are ahead of mine for replacement and that it could be weeks before parts are available. One car family and no loaners available and there talking weeks / months to repair.

I had a failure with the vehicle electrical system malfunction. I had multiple warnings from abs, power steering, adaptive cruise control. I was on the highway doing about 70 when this happened. After about 5 mins of driving, everything powered down in the vehicle. From the dashboard to the center instrument panel. Then after that, the car cut off. Lucky I was in the right lane to pull over to the shoulder. Car never started back up. Nervous about what the dealership is going to tell me.

Receiving multiple electrical warnings including low battery charge, vehicle starting system, parking brake malfunction, stabilization control (esc/abs), parking aid malfunction, and all-wheel drive malfunction. Issue appears to be due to a common failing 48v battery alternator.

Electrical system malfunction w/yellow battery icon. . . Stop/start system unavailable. Vehicle deemed unsafe to drive. Towed to dealership, part on worldwide b/o. . . Estimate several month wait for starter/alternator.

I suffered a complete failure of the vehicle's electrical system. First, I received a warning that the electrical system malfunctioned. This warning went away after two power cycles. Two days later the warning came back and a warning that the battery level was low. I was driving the vehicle approximately 1 mile on the highway when the warning became progressively dire. First the adaptive cruise control systems became failing one by one, adaptive lane keep, lane departure etc. Then I got yellow warnings about failures in the transmission and the engine. Finally those errors became dire that I must stop the vehicle. I next lost all electrical screens within 2-3 minutes of the cascading dire warnings just as I was pulling off the highway onto side streets. Within 30 seconds I lost power steering and most braking force. I was able to pull over into a bus stop, but with difficulty. I lost all hazard lights, all vehicle lights. I lost the ability to unlock the doors temporarily but this recovered. I could not turn the car back on, I could just hear the started struggling to turn over. None of the screens in the vehicle worked. No lights or horn worked. Thankfully this happened in the late afternoon while the sun was still out. The extreme danger posed by not having emergency lights, power steering and minimal braking capability made this an extremely scary situation. I was advised by Audi queens that this was confirmed alternator/generator failure.

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 unavailable. The local dealer was contacted, and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced the failure. VIN tool confirms parts not available.

I purchased the car new around June 2020 and it currently has just under 26,000 miles on it. Earlier this week while driving the car, an electrical malfunction warning appeared on the dashboard display. The first dealership I contacted did not deem it serious and set me up for an appointment over a month away. The second dealership I called had me tow the car in right away as the thought was my alternator had failed. A call back later that afternoon confirmed the alternator did in fact fail. That dealer also indicated that the wait time for a replacement was several months away. This seems to indicate much larger problems with this part as alternators are fairly common and very necessary components.

It appears that the 48v hybrid alternator failed. The vehicle completely shut down/lost all power while driving 50 mph on busy road. Almost rear ended while trying to coast to a stop. Low battery light came on the day before. The day it failed I was driving it to the dealership.

Vehicle's on board system reads "electrical malfunction: start/stop system malfunction. Call service". Then this triggers a complete shutdown of the vehicle: transmission, steering, distance, and braking sensors, etc all got affected.

While I was driving, the vehicle gave an electrical system malfunction warning. When I stopped and restarted the vehicle, the car reluctantly started with delays and a check engine light. I had to tow the car to the dealership. Upon inspection, they determined it is a generator issue, much like many other owners of 2019+ model year of Audi's. They do not have an eta on the replacement part, and thus the car will be out of commission for weeks to months. I am lucky, as many other people who have experienced this problem have had their car completely die on them in the middle of driving. This is a potentially dangerous safety hazard, and an enormous inconvenience, as any Audi owner with this generator issue will not have their car for weeks to months.

Known generator problem. The entire car shut down when I was on the express way at 5:30 pm rush hour in chicago. Luckily I was able to get over to a shoulder before the car went completely dead . Even the emergency flasher would not work, miracle that we didn't get killed. Can't believe Audi let people drive these cars when many have had this problem.

While driving to work, received notification of "electrical system malfunction, contact service immediately". I contacted Audi. They advised me to either bring the vehicle in or have it towed. I drove to Audi that afternoon. While driving to the service facility, the warning changed and told me to pull over immediately. As I was close to the dealership, I continue to drive and was able to make it to the dealership. I was informed by the service manager that the car could have shut down at any time and I would have lost complete control of steering and brakes. This is apparently a well-known problem with the 48 v generator. It will be a 2-month wait until I can have the generator replaced. Given that the electrical systems could have shut down at any time, this is a safety issue.

Was driving down the road and received a yellow “electrical system malfunction” alert. Shortly after an alert that said my start-stop function was no longer available. After about 20 minutes I received a red electrical system malfunction: stop vehicle safely. Thankfully I was pulling onto my street when the last alert popped up.

The car displayed a warning that the electrical system had a fault and to contact service. I then contacted service and they said to drive it to the dealer as it sounded like a known issue with the generator/starter and 48v system. On the way to the dealership, the warnings continued and then various systems began shutting down, including the steering and the transmission. I was going at a relatively slow speed on a side street at the time, which was fortunate, as the car locked up all four wheels and had no steering and the engine quit. Thankfully it was a side street. If this was a major street or highway, it quite likely could have caused a serious accident or injury. In contacting Audi USA, they do not have parts available to fix this issue, and the dealership confirmed that they are unable to fix the car at this time.

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.

I get a message on the dashboard while driving that the electrical system failed. There is a message later that says the "start/stop system: malfunction! function unavailable. Please contact service".

The starter/generator (formerly known as alternator) of our A6 3. 0 needs to be replaced, the part is back-ordered for approximately 60 to 90 days. The yellow indicator light goes on and then the car shuts off. It happens without warning and is incredibly dangerous.

Battery light came on, called the dealer and they said don't drive and towed the car to dealer. They said need to replace starter generator c29. They did't have parts, so they keep my car at Audi dealer service shop for about one and hale month. I googled and look like it happened to too many people. Finally they said found the parts and charge me $2902. 12. I am really concerned that part is not properly constructed or something, as even in this dealership, they said my car was sixth in one month and may more after me. They are skimming money from bad part.