The MMI ( main screen) system randomly reboots every 5 minutes, even when using CarPlay, which is unsafe. Please check it out. Thank you!
Electrical system
2018 Audi A5 Electrical problems
Owners have filed 2 complaints about the 2018 Audi A5's electrical system with NHTSA - 22% of all its complaints, most recently on February 18, 2026. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.
- Complaints
- 2
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Electrical complaints
I turned on my car and several malfunctions came on the dash,and would not start and went in limp mode. A local mechanic stated it's the electrical component of the coolant pump causing malfunction. He also stated that could lead the car catching fire if overheats since the 5V is dipping below due to the faulty coolant /water pump. Ultimately forcing the car in limp mode for safety precautions. The problem is I purchase my car at 87,000 miles from the Audi dealership, and the extended warranty that covers the car is 80,000 miles
Audi A5 electrical complaints by year
A5 electrical problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data