IsItAGoodCar

Common Problems with the
2018–2023 Audi A6 Mk5 (C8)

We've identified 1 known issue that can affect the 2018–2023 Audi A6 Mk5 (C8). 1 of these are serious faults that could be expensive to repair.

1
Known Issues
1
Serious
0
Moderate
0
Minor

The 2018–2023 period has an average number of reported issues compared to other Audi A6 Mk5 (C8) year periods.

All Known Issues

Belt Starter Generator (BSG) Failure

SeriousElectrics & Electronics

The 48V mild-hybrid system can fail, leading to an "Electrical system: fault" message.

Most affected: Mild Hybrid models

Estimated cost: £0–£1,500Affects: 2018–2023Often appears around: 20k-60k miles

Typical symptoms

  • •Warning messages
  • •Total electrical failure while driving

What to inspect before you buy

  • ✓Check Audi recall database for "48V BSG" campaign

Buying Tips for the 2018 Audi A6 Mk5 (C8)

  • ✓Ensure the Belt Starter Generator (BSG) recall has been performed
  • ✓Check both touchscreens for responsiveness
  • ✓Verify AdBlue and NOx sensor health
2024 Audi A6 Mk5 (C8)

Browse 2018–2023 Audi A6 Mk5 (C8) in our Directory

View MOT history, registration data, and reliability scores for 2018–2023 Audi A6 Mk5 (C8) vehicles.

View 2018–2023 Directory

Other Audi A6 Mk5 (C8) Year Periods

2018–20232024

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