Audi A6 C8 45 TDI, 231 PS, 8-speed automatic, all-wheel drive (2018–2020)

Research for this car

• Generation guide Audi A6 C8 (2018-2025): known problems and buying guide

  A quiet, roomy executive car with a costly 48 V generator risk on early cars, so check the generator and software history first.

Known issues for this car

Before you buy this car

From the generation guide

1. 48 V belt starter-generator: on a 2018-2020 car, start it from cold and look for a network warning. This check needs a scanner; a dealer with ODIS should read the generator and 48 V battery faults. Bad: a yellow or red network message, a warm idle stuck near 1,000 rpm, or start-stop switched off.
2. MMI and screens: test both screens, sat nav, radio, climate and driver-assist systems together. Ask for the software version and the date of the last update. Bad: a screen that freezes, lost favourites, or a warning that cruise control is not available.
3. 3.0 TDI pull-away: drive a 50 TDI or S6 from a stop and at low speed. Bad: a long hesitation before the car moves. Ask whether the engine and gearbox software updates were done.
4. Recalls: ask an Audi dealer to check open campaigns by VIN, especially the panoramic roof, passenger airbag and rear axle campaigns.

Running costs

ADAC figures for 15,000 km a year over 60 months

ADAC versions