2020 AUDI Q7 Electrical System Problems

I am filing a complaint concerning serious safety risks associated with my 2020 Audi Q7 (VIN: [XXX] ) purchased as a Certified Pre-Owned vehicle from Audi Dominion San Antonio. It is currently under service at Audi Central Houston, where multiple concerning events occurred. Timeline and Issues: - Initial diagnosis identified a fire-damaged electrical harness, estimated at $1,400 for replacement. - After repair attempts, the vehicle began smoking, and the diagnosis expanded to include additional compromised electrical lines. The revised quote skyrocketed to $4,700 (later reduced to $3,100). - After nearly two months in service, I was informed that the AC compressor is now deemed "bad" due to debris from the harness, an issue not mentioned in previous inspections. Safety Concerns: 1. Inconsistent Diagnosis: There was no mention of compressor damage during initial assessments. This late-stage discovery indicates negligence or potential additional damage during servicing. 2. Risky AC Activation: A technician...

In July 2023, my 2020 Audi Q7 experienced a complete electrical failure at highway speeds due to a Belt Starter Generator (BSG) malfunction. Audi replaced the BSG with the same faulty part. Months later, I noticed increased oil consumption and loud engine noise. Despite multiple service visits and reporting these issues, Audi failed to properly diagnose the problem. In January 2025, despite a clear check engine light indicating a problem, Audi dismissed my concerns. Just weeks later, in February 2025, the engine catastrophically failed due to undiagnosed internal damage. Audi repeatedly ignored diagnostic warnings and failed to address my complaints, putting my safety at risk. Audi consistently dismissed my concerns, attributing engine noise and oil consumption to normal wear. The failures posed safety risks, including sudden loss of power while driving. Despite documented defects, Audi refused to take responsibility or perform proper diagnostics, resulting in continued safety hazards. I am...

while driving the vehicle, I received a warning that there was an electrical system failure. Then the entire care shut off in the middle of the highway. There was no way to get the vehicle into neutral to push it to a safer location out of traffic. I was in the vehicle with my two children. This left us stranded in the middle of the highway with a significant amount of traffic. There was no way to get the vehicle back on. This seems to be a known issue with Audi and they have notified the dealerships about it but have not issued a recall. Please expedite this as a recall. There could not have been a more dangerous situation for me and my children.

Our 2020 Audi Q7 (50,100 miles) suffered a catastrophic electrical failure while traveling on the freeway at 65+MPH. Suddenly the engine warning light went on, and then seconds later the entire interior lit up like a Christmas tree before it succumbed to a complete and catastrophic electrical failure. EVERYTHING failed – the car had zero power. No acceleration, brakes, steering, SOS, hazards / turn signals, brake lights, airbags, door locks, etc. My wife and child sat there in a steel box traveling at a high rate of speed while obstacles navigated around them; had they been hit, the air bags would not have deployed. This car nearly cost me my family. Audi replaced the alternator and the battery, and denied my buy-back claim because the incident hasn’t happened multiple times, and therefore doesn’t qualify for the lemon law. We continue to experience problems with the car – most recently: acceleration...

Emergency battery light came on with a description of power malfunction. The light went from yellow to red then shortly stopped in the road while driving with complete power outage.

While driving, Forward Collision Warning appears without any reason. My understanding is that the car will brake itself if it senses frontal collosion and I am concerned that it might brake suddenly without my knowledge and cause an accident.

Received a yellow "electrical failure" warning while driving, instructing me to call Audi for service. Audi indicated that the car remained safe to drive, and offered a service appointment greater than one month later. Driving the car the next day, the electrical failure icon converted to red and a message said to pull over immediately. The car was able to make it to a local repair shop, with electrical systems failing one-by-one (starting with heating and progressing from there). On reaching the shop, the car was no longer driveable and had to be pushed into the garage to be assessed. The problem could not be identified at the local shop, so the car was towed to Audi dealer. Problem was found to be the generator. Have been waiting on replacement part for greater than 30 days, with no ETA as of today. Primary safety concern is that the car became...

While driving at high speeds on the Freeway with my wife and 2 children (ages 4 & 5), an alert on the dashboard said - Electric System Malfunction. Drove straight to the near by dealership and was told not to turn off the vehicle as it might not start. Service Advisor said we were lucky it didn't stop on the freeway as it has for others. He asked us to collect our belongings as the car was not drivable due to a known electrical system malfunction. He said this was a known issue as there were many others impacted with this same issue and have been waiting months for the parts. He also said Audi of America is well aware of the issue but don't want to publicize it as they don't have the parts available to repair all the impacted vehicles. He provided me with the Audi TSB 27...

TWO ISSUES: THE SMALL PORTABLE AIR PUMP THAT CAME WITH THE CAR WOULD BLOW THE FUSE TO THE 12V CIGARETTE LIGHTER. AFTER A NEW FUSE IS PUT IN, THIS WOULD HAPPEN ON ABOUT EVERY THIRD OR FOURTH TIME OF USING OF THE PUMP. I HAVE REPLACED ABOUT 5 FUSES ALREADY. THE SECOND ISSUE IS THE SQUEAKING OF THE REAR BRAKES WHEN BACKING UP DURING COLD OR HOT. HOWEVER, IT DOES HAPPEN MORE WHEN COLD/IN THE MORNING. A FACTORY DEALERSHIP HAD LOOK AT THE ISSUE BUT FOUND NOTHING.