Software update for battery control unit
- Defect
- On affected vehicles there may be defective battery modules which may result in a fire hazard when charging the high-voltage battery.
- Remedy
- Update the software of the high-voltage battery to improve the self-diagnosis capabilities. Vehicle owners are advised to not charge the high-voltage battery using external charging sources and also not use the e-tron modes “Battery charge” and “Battery hold” until the update is applied.
- Vehicles affected
- 185 A8 vehicles
- Built
- 19 Feb 2022 to 18 Dec 2023