2020 Audi A6 Saloon 2.0 TDI S Line

Overview

• Make: Audi
• Model: A6 Saloon
• Trim: S Line
• Version: 2.0 TDI 40 S Line S tronic FWD Euro 6 (s/s) 4dr (201 bhp)
• Year: 2020
• Mileage: 38,780 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 38,780 miles, this 2020 Audi A6 Saloon S Line has covered about 19,100 fewer miles than other 2020 Audi A6 Saloon cars. Priced at £18,900, it is advertised £1,770 below the AskCar estimate of £20,670. The AskCar estimate uses UK dealer asking prices, including 871 Audi A6 Saloon adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 34 days ago, the asking price has dropped by £464. Its advertised mileage matches the government's MOT record. The seller is Motor Match Stockport, based in Stockport. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Good value: £1,770 (8%) under the AskCar estimate of £20,670.

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 871 priced Audi A6 Saloon adverts across different ages and specifications, as of 5 November 2026.

A 2020 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £18,000: the median of the 58 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 Audi A6 Saloon has been on sale for at least 34 days.

Price history

AskCar first saw this advert on 2 October 2026 at £19,364. Its asking price is now £18,900, £464 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 2 October 2026: £19,364
• 14 October 2026: £19,360
• 24 October 2026: £18,999
• 27 October 2026: £18,900

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 13 March 2027.

It has had 4 MOTs. The latest, on 20 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 34,436 miles, which matches the advertised 38,780 miles.

Advertised mileage is about 19,100 miles lower than the median mileage of a 2020 Audi A6 Saloon on AskCar.

Similar cars

19 other 2020 Audi A6 Saloon S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £13,595 to £21,999, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 43,500 miles. Price: £19,450, £550 more than this car. Dealer: Swansway Garages Stoke Audi in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-aa4ca97898e0
• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, white. Mileage: 34,000 miles. Price: £19,950, £1,050 more than this car. Dealer: Westleigh Prestige in Wickford. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-94b6449627b2
• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 34,000 miles. Price: £20,450, £1,550 more than this car. Dealer: Farlan Automotive in Wembley. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-43ab3193a800

• The nearest: 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, grey, 5 miles from this car. Mileage: 111,302 miles. Price: £13,595, £5,305 less than this car. Dealer: J & S Manchester Car Sales in Manchester. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-59e4419d77e7