2020 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: 2020
• Mileage: 55,000 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 55,000 miles on the clock, this 2020 Audi A6 Saloon S Line has done roughly 2,900 fewer miles than a typical 2020 Audi A6 Saloon. Priced at £19,495, it is advertised £747 above the AskCar estimate of £18,748. The AskCar estimate uses 874 UK dealer adverts for the Audi A6 Saloon, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 39 days ago. Its asking price has since fallen by £1,495. The government's MOT record matches its advertised mileage. It is for sale at SD Vehicles in Nuneaton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £747 (3%) over the AskCar estimate of £18,748.

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 874 priced Audi A6 Saloon adverts across different ages and specifications, as of 4 November 2026.

A 2020 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £18,000: the median of the 56 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2020 Audi A6 Saloon has been on sale for at least 39 days.

Price history

AskCar first saw this advert on 26 September 2026 at £20,990. Its asking price is now £19,495, £1,495 less. The latest price cut was seen on 15 October 2026.

Price changes recorded:

• 26 September 2026: £20,990
• 2 October 2026: £19,995
• 15 October 2026: £19,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 5 September 2027.

It has had 4 MOTs. The latest, on 21 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 54,980 miles, which matches the advertised 55,000 miles.

Advertised mileage is about 2,900 miles lower than the median mileage of a 2020 Audi A6 Saloon on AskCar.

Similar cars

17 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 4 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, grey. Mileage: 55,712 miles. Price: £18,440, £1,055 less than this car. Dealer: Dace Specialist Car Centre Manchester - Trading Standards Approved in Manchester. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-5b8c11767928
• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, grey. Mileage: 56,690 miles. Price: £18,089, £1,406 less than this car. Dealer: cinch in Royal Tunbridge Wells. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-12a72e4d117e
• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, grey. Mileage: 57,881 miles. Price: £18,295, £1,200 less than this car. Dealer: Cars2 Geely Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-353ca065a3de

• The nearest: 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, grey, 26 miles from this car. Mileage: 47,106 miles. Price: £19,890, £395 more than this car. Dealer: Stratstone Halesowen Audi in Halesowen. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-949f411cd867