2018 Audi A6 Saloon 2.0 TDI S Line
Version: 2.0 TDI S Line S tronic FWD Euro 6 4dr (201 bhp)
Price: £16,949. Above the going rate: £1,277 (8%) over the AskCar estimate of £15,672, our expected asking price for this car from its model, age, mileage and specification, drawing on 857 priced Audi A6 Saloon adverts on AskCar as of 29 October 2026.
AskCar lists 896 used Audi A6 Saloon from 658 UK dealerships, as of 29 October 2026.
Overview
- Make
- Audi
- Model
- A6 Saloon
- Trim
- S Line
- Version
- 2.0 TDI S Line S tronic FWD Euro 6 4dr (201 bhp)
- Mileage
- 66,000 miles
- Year
- 2018
- Fuel type
- Diesel
- Body type
- Saloon
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 201 bhp
- Seats
- 5
- Colour
- White
- Doors
- 4
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TDI
- Emissions standard
- Euro 6
About this car
This 2018 Audi A6 Saloon S Line is advertised with 66,000 miles, approximately 3,800 below the typical mileage for its age. The AskCar estimate for this car is £15,672. It is priced at £16,949, which is £1,277 above that estimate. The AskCar estimate draws on 857 Audi A6 Saloon adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. Its recorded MOT is valid until 8 October 2027, and its advertised mileage is consistent with the latest MOT reading. It is for sale at Donnelly Automotive in Ballymena.
Stock data as of 29 October 2026.
Price history
AskCar first saw this advert on 29 October 2026.
| Date observed | Asking price |
|---|---|
| 29 October 2026 | £16,949 |
Price and mileage comparison
Above the going rate: £1,277 (8%) over the AskCar estimate of £15,672.
The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.
It draws on 857 priced Audi A6 Saloon adverts across different ages and specifications, as of 29 October 2026.
Advertised mileage is about 3,800 miles lower than the median mileage of a 2018 Audi A6 Saloon on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 8 October 2027. 65,214 miles at the last test.
Other matching cars
38 other 2018 Audi A6 Saloon S Line automatic diesel cars are for sale at UK dealers from £7,995 to £21,998, as of 29 October 2026.
The 5 cheapest:
- 2018 Audi A6 Saloon. Price: £7,995. Mileage: 115,000 miles. Dealer: Driveaway N11 in London. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-72d353d57b7b
- 2018 Audi A6 Saloon. Price: £10,980. Mileage: 80,000 miles. Dealer: Motonet.com in Coventry. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-9dca2055f1f2
- 2018 Audi A6 Saloon. Price: £11,490. Mileage: 131,000 miles. Dealer: 2Us 4 Cars in Bacup. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-d402cfcc7af3
- 2018 Audi A6 Saloon. Price: £11,995. Mileage: 121,258 miles. Dealer: Carzy in Manchester. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-0edc5e86d7a0
- 2018 Audi A6 Saloon. Price: £12,990. Mileage: 120,515 miles. Dealer: Autohaven Motors in High Wycombe. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2018-2b4b595c442b
The 38 matching cars have covered 12,900 to 131,000 miles, compared with 66,000 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Audi A6 Saloon cars for sale · 2018 Audi A6 Saloon price guide
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Photos
1 photo of this car is on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.