Audi A6, A7, Q5 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 |
|---|---|---|---|
| A6 | 26 Feb 2021 | 10 Jun 2024 | 1,458 |
| A7 | 20 Dec 2021 | 10 Jun 2024 | 72 |
| Q5 | 22 Mar 2021 | 26 Jul 2024 | 4,630 |
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 24 October 2025. This page summarises an official notice. Details can change – always follow the official notice.