2021 Audi A6 Saloon 2.0 TDI S Line
Version: 2.0 TDI S Line S tronic FWD Euro 6 4dr 40 (201 bhp)
Price: £19,490. Fair price: £1,279 (7%) over the AskCar estimate of £18,211, our expected asking price for this car from its model, age, mileage and specification, drawing on 854 priced Audi A6 Saloon adverts on AskCar as of 30 October 2026.
AskCar lists 878 used Audi A6 Saloon from 644 UK dealerships, as of 30 October 2026.
Overview
- Make
- Audi
- Model
- A6 Saloon
- Trim
- S Line
- Version
- 2.0 TDI S Line S tronic FWD Euro 6 4dr 40 (201 bhp)
- Mileage
- 75,342 miles
- Year
- 2021
- Fuel type
- Diesel
- Body type
- Saloon
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 201 bhp
- Seats
- 5
- CO2
- 142 g/km
- Colour
- Black
- Doors
- 4
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TDI
- Emissions standard
- Euro 6
About this car
This 2021 Audi A6 Saloon S Line has covered 75,342 miles, around 17,600 more miles than is typical for its age. Its asking price of £19,490 is £1,279 above the AskCar estimate of £18,211. The AskCar estimate uses 854 UK dealer adverts for the Audi A6 Saloon, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. The latest MOT record shows an expiry date of 5 October 2027, with the advertised mileage consistent with the recorded reading. You can find this car at Fermanagh Auto Sales in Enniskillen.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 30 October 2026.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £19,490 |
Price and mileage comparison
Fair price: £1,279 (7%) over the AskCar estimate of £18,211.
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 854 priced Audi A6 Saloon adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 17,600 miles higher than the median mileage of a 2021 Audi A6 Saloon on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 5 October 2027. 51,178 miles at the last test.
Other matching cars
15 other 2021 Audi A6 Saloon S Line automatic diesel cars are for sale at UK dealers from £15,770 to £21,000, as of 30 October 2026.
The 5 cheapest:
- 2021 Audi A6 Saloon. Price: £15,770. Mileage: 91,045 miles. Dealer: Evans Halshaw Ford Blackpool in Blackpool. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-5f042feb4b9c
- 2021 Audi A6 Saloon. Price: £16,400. Mileage: 79,921 miles. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-fa93dd72f012
- 2021 Audi A6 Saloon. Price: £16,495. Mileage: 97,450 miles. Dealer: Select Car Superstore in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-0797fd159c88
- 2021 Audi A6 Saloon. Price: £16,995. Mileage: 92,280 miles. Dealer: Blackline Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-6b893042a43b
- 2021 Audi A6 Saloon. Price: £17,499. Mileage: 75,378 miles. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-b239d25d51d8
The 15 matching cars have covered 52,755 to 97,450 miles, compared with 75,342 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 · 2021 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 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.