Audi A6 C8 50 TDI, 286 PS, 8-speed automatic, all-wheel drive (2018–2023)
- Power
- 286 PS (210 kW)
- Engine codes
- DDV
- Gearbox
- 8-speed automatic
- Production years
- 2018–2023
- Running cost per month
- €671
- Fuel
- Diesel
- Median price
- €31,990
- Reliability
- 3/5
- DIY
- 1/5
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
| Issue | Affects | Typical km | Repair cost | Source |
|---|---|---|---|---|
| 48 V belt starter-generator failure | Cars built 2018-2020, several engines | Not stated | 1,190-2,300 EUR (ADAC, Germany, year not stated) | Generation guide |
| MMI and infotainment faults | Early cars, about 2018-2020 | Not stated | No confirmed price | Generation guide |
| Sluggish pull-away on the 3.0 TDI V6 | 3.0 TDI V6 (DDV, DMG) and S6 (DEW, DMK) | Not stated | No confirmed price | Generation guide |
Before you buy this car
From the generation guide
- 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.
- 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.
- 3.0 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.
- Recalls: ask an Audi dealer to check open campaigns by VIN, especially the panoramic roof, passenger airbag and rear axle campaigns.
Running costs
| Operational | €231 |
|---|---|
| Workshop | €193 |
| Fixed costs (tax, insurance) | €247 |
| Total per month | €671 |
| New-car depreciation (not included) | €121 |
ADAC figures for 15,000 km a year over 60 months
Market
Listings on mobile.de in this generation with this fuel, gearbox and power.
- Listings
- 826
- 25th percentile
- €26,990
- Median price
- €31,990
- 75th percentile
- €36,890
- Median mileage
- 105,464 km
- Median first registration
- 2022
- Dealer share
- 83.5%
Check a listing
Prices by first registration
| First registration | Listings | Median price | Median mileage |
|---|---|---|---|
| 2025 | 10 | €43,750 | 23,650 km |
| 2024 | 11 | €44,475 | 43,890 km |
| 2023 | 230 | €37,810 | 91,164 km |
| 2022 | 164 | €32,999 | 90,400 km |
| 2021 | 60 | €28,999 | 93,300 km |
| 2020 | 97 | €29,000 | 119,000 km |
| 2019 | 171 | €27,900 | 131,000 km |
| 2018 | 83 | €25,890 | 153,173 km |
Medians only for years with at least 5 listings. Many cars are first registered after production ends, so years can run past the build years.
Price history
| Month | Listings | Median price | Middle half | Median mileage |
|---|---|---|---|---|
| Nov 2026 | 826 | €31,990 | €26,990 – €36,890 | 105,464 km |
| Oct 2026 | 826 | €31,990 | €26,990 – €36,890 | 105,464 km |
Median asking price at the last snapshot of each month.
ADAC versions
All 21 ADAC versions
| Version | Power | Body | Doors | Production years | Running cost per month |
|---|---|---|---|---|---|
| A6 50 TDI quattro tiptronic | 286 PS | Saloon | 4 | 2018–2019 | €700 |
| A6 50 TDI design quattro tiptronic | 286 PS | Saloon | 4 | 2018–2019 | €697 |
| A6 50 TDI sport quattro tiptronic | 286 PS | Saloon | 4 | 2018–2019 | €697 |
| A6 50 TDI quattro tiptronic | 286 PS | Saloon | 4 | 2019–2020 | €700 |
| A6 50 TDI sport quattro tiptronic | 286 PS | Saloon | 4 | 2019–2020 | €697 |
| A6 50 TDI design quattro tiptronic | 286 PS | Saloon | 4 | 2019–2020 | €697 |
| A6 50 TDI quattro tiptronic | 286 PS | Saloon | 4 | 2020–2023 | €703 |
| A6 50 TDI sport quattro tiptronic | 286 PS | Saloon | 4 | 2020–2023 | €700 |
| A6 50 TDI design quattro tiptronic | 286 PS | Saloon | 4 | 2020–2023 | €700 |
| A6 Avant 50 TDI quattro tiptronic | 286 PS | Estate | 5 | 2018–2019 | €674 |
| A6 Avant 50 TDI sport quattro tiptronic | 286 PS | Estate | 5 | 2018–2019 | €671 |
| A6 Avant 50 TDI design quattro tiptronic | 286 PS | Estate | 5 | 2018–2019 | €671 |
| A6 Avant 50 TDI quattro tiptronic | 286 PS | Estate | 5 | 2019–2020 | €671 |
| A6 Avant 50 TDI sport quattro tiptronic | 286 PS | Estate | 5 | 2019–2020 | €668 |
| A6 Avant 50 TDI design quattro tiptronic | 286 PS | Estate | 5 | 2019–2020 | €668 |
| A6 Avant 50 TDI quattro tiptronic | 286 PS | Estate | 5 | 2020–2023 | €682 |
| A6 Avant 50 TDI sport quattro tiptronic | 286 PS | Estate | 5 | 2020–2023 | €679 |
| A6 Avant 50 TDI design quattro tiptronic | 286 PS | Estate | 5 | 2020–2023 | €679 |
| A6 allroad 50 TDI quattro tiptronic | 286 PS | Estate | 5 | 2019–2020 | €684 |
| A6 allroad 50 TDI 20 years quattro tiptronic | 286 PS | Estate | 5 | 2019–2020 | €705 |
| A6 allroad 50 TDI quattro tiptronic | 286 PS | Estate | 5 | 2020–2023 | €690 |