2018–2023 Audi A6 Mk5 (C8)

Browse our directory of 2018–2023 Audi A6 Mk5 (C8) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.

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Common Problems & Reliability

1
Serious
0
Moderate
0
Minor

The 2018–2023 Audi A6 Mk5 (C8) has 1 known issue. 1 of these are classified as serious faults that could be expensive to repair.

Belt Starter Generator (BSG) Failure

Serious

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

Symptoms: Warning messages, Total electrical failure while driving

Est. repair cost: £0–£1,500

View detailed Audi A6 Mk5 (C8) fault guide

Buying Tips for the 2018–2023 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

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