2019 Audi A6: false forward collision warnings

Filed Sep 22, 2023 · Driver assistance, Electrical · NY

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.

Filed Sep 7, 2023 · Electrical, Steering · NJ

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.

Filed May 26, 2023 · Electrical, Engine · NJ

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.

Filed Apr 25, 2023 · Brakes, Electrical · TX

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.

Filed Jan 13, 2023 · CT

Multiple warnings indicating to contact dealer (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 in the parking lot.

Filed Nov 18, 2022 · Electrical, Engine · WA

Multiple warnings indicating to contact dealer (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 in the parking lot. Flatbed towed to dealer who stated most likely the generator between the lithium battery bank and gas engine failed. They have seen several in this year for A6 and A7's with mild hybrid engines. I'm lucky to be in low volume traffic as there was no power to indicate to drivers around me that my engine quit and not even turn signals worked.

Filed Feb 23, 2021 · Driver assistance · 9,975 miles · NY

On sunday february 21, 2021 at about 330pm on rt 30 in amsterdam ny we were driving in stop and go traffic less than 30mph. As the car in front of me started to slow in traffic I started to brake my a6, at about 20mph and about 1.5 car lengths behind the car in front of me the audi presense collision warning screen activated with a red screen in the driver's cluster and a "chime" the car then went into emergency collision stopping mode...car's antilock brakes activated bringing my car to a complete stop in traffic. Traffic in front of me never stopped and I was at a distance that I had complete control of my car with more than enough distance to slow or stop my car safely. The car behind me came within inches of rear ending my car. I'm speculating that the driver behind me did not expect me to stop dead in traffic anymore than I did. Traffic conditions and distance did not warrant the presense to warn at all let alone activate the emergency collision response braking. This is the third malfunction of safety systems I have reported to the federal safety agency re: malfunctions of advanced safety systems. Audi USA is unresponsive.

Filed Feb 10, 2021 · Driver assistance · 6,500 miles · NY

August 25, 2020 traveling wb on I-90 [mass turnpike] passing and 18 wheel tractor trailer with an unmarked white box trailer. Truck 'weaved' to the left into my driving lane as I was overtaking it. I swerved to the left to avoid contact of my 2019 audi a6 premium plus at about the a pillar and the rear wheel area of the box trailer. In my evasive action the car's lane keeping assistant activated as I was about to cross the lines on my left side to avoid the truck, the car took control of the steering and aggressively steering the car back at the tractor trailer. I braked the car as hard I could to avoid collision with the box trailer. None of the collision warning system activated and the car's sensors and cameras did not recognize that I was trying to avoid a high speed collision with the tractor trailer. I brought the car to the dealership [audi albany, latham ny] after return from my trip to have safety systems checked. No fault codes were detected.