Carsieve Audi A6 C8 allroad 55 TDI, 349 PS, 8-speed automatic, all-wheel drive (2019–2020)
- Power
- 349 PS (257 kW)
- Engine codes
- DEW
- Gearbox
- 8-speed automatic
- Production years
- 2019–2020
- Running cost per month
- €742
- Fuel
- Diesel
- Median price
- €35,900
- 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 | €252 |
|---|---|
| Workshop | €234 |
| Fixed costs (tax, insurance) | €256 |
| Total per month | €742 |
| New-car depreciation (not included) | €139 |
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
- 141
- 25th percentile
- €31,950
- Median price
- €35,900
- 75th percentile
- €38,890
- Median mileage
- 123,000 km
- Median first registration
- 2020
- Dealer share
- 94.3%
Prices by first registration
| First registration | Listings | Median price | Median mileage |
|---|---|---|---|
| 2021 | 4 | – | – |
| 2020 | 81 | €36,990 | 119,815 km |
| 2019 | 56 | €33,990 | 134,129 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 | 141 | €35,900 | €31,950 – €38,890 | 123,000 km |
| Oct 2026 | 141 | €35,900 | €31,950 – €38,890 | 123,000 km |
Median asking price at the last snapshot of each month.
ADAC versions
All 4 ADAC versions
| Version | Power | Body | Doors | Production years | Running cost per month |
|---|---|---|---|---|---|
| A6 allroad 55 TDI quattro tiptronic | 350 PS | Estate | 5 | 2019–2020 | €703 |
| A6 allroad 55 TDI 20 years quattro tiptronic | 350 PS | Estate | 5 | 2019–2020 | €728 |
| S6 Avant TDI tiptronic | 349 PS | Estate | 5 | 2019–2020 | €761 |
| S6 TDI tiptronic | 349 PS | Saloon | 4 | 2019–2020 | €758 |