Audi Q7, Q8, A8 recall: Software update for battery control unit
- What's wrong
- On affected vehicles there may be defective battery modules which may result in a fire hazard when charging the high-voltage battery.
- What to do
- Contact a Audi dealer to book the free repair. 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…
What’s wrong
On affected vehicles there may be defective battery modules which may result in a fire hazard when charging the high-voltage battery.
The fix
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
| Model | Built from | Built to | Vehicles |
|---|---|---|---|
| Q7 | 5 Nov 2020 | 10 Oct 2023 | 586 |
| Q8 | 12 Jan 2021 | 15 Dec 2023 | 232 |
| A8 | 19 Feb 2022 | 18 Dec 2023 | 185 |
How to check your vehicle
Use the official DVSA checker with your registration number to see if your exact vehicle is included. If it is, the manufacturer should have written to the registered keeper. The repair is free, even if you bought the vehicle second-hand.
Updated 10 October 2025. This page summarises an official notice. Details can change – always follow the official notice.