2021 Audi A6 Saloon 2.0 TDI S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 4dr 40 (201 bhp)
• Year: 2021
• Mileage: 75,378 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 75,378 miles on the clock, this 2021 Audi A6 Saloon S Line has done roughly 18,300 more miles than a typical 2021 Audi A6 Saloon. The AskCar estimate for this car is £18,179. It is priced at £17,699, which is £480 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 858 Audi A6 Saloon cars across different ages and specifications. It first appeared in our advert records 3 days ago. The government's MOT record matches its advertised mileage. It is advertised by cinch Corby in North Northamptonshire. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £480 (2%) under the AskCar estimate of £18,179.

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 858 priced Audi A6 Saloon adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £18,500: the median of the 80 for sale on AskCar, as of 2 November 2026.

Time on sale

AskCar first saw this 2021 Audi A6 Saloon advertised 3 days ago. About 4 in 10 of 2021 Audi A6 Saloon cars are gone from sale within a month of being advertised: 40 of the 93 first advertised between 13 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £17,499. Its asking price is now £17,699, £200 more.

Price changes recorded:

• 30 October 2026: £17,499
• 31 October 2026: £17,699

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 21 October 2027.

It has had 4 MOTs. The latest, on 22 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 75,376 miles, which matches the advertised 75,378 miles.

Advertised mileage is about 18,300 miles higher than the median mileage of a 2021 Audi A6 Saloon on AskCar.

Similar cars

14 other 2021 Audi A6 Saloon S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £15,770 to £21,000, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 75,342 miles. Price: £19,490, £1,791 more than this car. Dealer: Fermanagh Auto Sales in Enniskillen. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-93b403df75b2
• 2021 Audi A6 Saloon S Line, 2.0 diesel saloon, grey. Mileage: 72,952 miles. Price: £17,995, £296 more than this car. Dealer: Motorzone Durham in Durham. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-82c9426ff337
• 2021 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 79,921 miles. Price: £16,400, £1,299 less than this car. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-fa93dd72f012

• The nearest: 2021 Audi A6 Saloon S Line, 2.0 diesel saloon, black, 18 miles from this car. Mileage: 97,450 miles. Price: £16,495, £1,204 less than this car. Dealer: Select Car Superstore in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-0797fd159c88