Audi A6, A7, Q5 Recall R/2025/463: Software Update For Battery Control Unit, Who Is Affected And What To Do

DVSA reference R/2025/463, campaign code 93AD. Data updated daily from DVSA.

Urgent
How serious
24 Oct 2025
Launched
6,160
vehicles in the UK
93AD
Manufacturer’s campaign code

Audi recalled A6, A7, Q5 vehicles built between 26 February 2021 and 26 July 2024. There may be defective battery modules which may result in a fire hazard when charging the high-voltage battery. The dealer will update the software of the high-voltage battery to improve the self-diagnosis capabilities. You won't usually pay for it.1

What’s Wrong

There may be defective battery modules which may result in a fire hazard when charging the high-voltage battery.

DVSA's Original Wording

Concern: 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.

Contains public sector information licensed under the Open Government Licence v3.0.

The Risk

If the fault occurs, the recall notice says it could result in a fire hazard when charging the high-voltage battery.

The Fix

The dealer will update the software of the high-voltage battery to improve the self-diagnosis capabilities. The fix is a software update, which usually takes under an hour at the dealer.

Are You Affected?

A6, A7, Q5 built between 26 February 2021 and 26 July 2024 may be included. Audi estimates 6,160 vehicles in the UK. Enter your registration to check, then confirm by VIN with Audi, because not every car in the date range may be included.

What To Do Now

  1. Check your car by registration above, then by VIN with Audi.
  2. Book with any franchised Audi dealer, quoting the campaign code 93AD or the DVSA reference R/2025/463. See how to get a Audi recall fixed.
  3. Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
LaunchedVehicle and faultSeverityReference
Q5Replacing seat belt with tensionerUrgentR/2026/192
A6, Q8Belt buckle rivet missingUrgentR/2025/508
A3, A4, A4 Cabrio, A5 and 3 moreStop-drive TAKATA PSANStop drivingR/2025/387
Q5Cylinder head cover bolts inspectionUrgentR/2025/184
A6, Q5Servicing high-voltage batteryStop drivingR/2024/495

This is one of 158 Audi recalls in DVSA’s data. The Audi recall launched before it was R/2025/441 on 10 Oct 2025, for software update for battery control unit. The one launched after it was R/2025/508 on 14 Nov 2025, for belt buckle rivet missing. You can also see every Audi recall, the Audi Q5 recall history, all recalls launched in 2025 and high-voltage battery recalls across every make.


Source: DVSA recall R/2025/463, launched 24 October 2025. Data updated 15 October 2026. How we grade urgency.

Sources

  1. The Code does not itself say repairs are free. GOV.UK guidance says "You will not usually have to pay for any repairs or parts under a safety recall." gov.uk Checked 15 Oct 2026.