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: 43,500 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

This 2020 Audi A6 Saloon S Line is advertised with 43,500 miles, approximately 14,400 below the typical mileage for its age. The AskCar estimate for this car is £19,839. It is priced at £19,450, which is £389 below that estimate. The AskCar estimate draws on 871 Audi A6 Saloon adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 15 days ago. Its asking price has since fallen by £300. The government's MOT record matches its advertised mileage. You can find this car at Swansway Garages Stoke Audi in Stoke on Trent. 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

Fair price: £389 (1%) under the AskCar estimate of £19,839.

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 15 days.

Price history

AskCar first saw this advert on 21 October 2026 at £19,750. Its asking price is now £19,450, £300 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 21 October 2026: £19,750
• 4 November 2026: £19,450

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 17 October 2027.

It has had 5 MOTs. The latest, on 17 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 43,247 miles, which matches the advertised 43,500 miles.

Advertised mileage is about 14,400 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, black. Mileage: 45,420 miles. Price: £14,990, £4,460 less than this car. Dealer: B&T Autos in Rainham. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-ca2265063467
• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, grey. Mileage: 47,106 miles. Price: £19,890, £440 more than this car. Dealer: Stratstone Halesowen Audi in Halesowen. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-949f411cd867
• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 38,780 miles. Price: £18,900, £550 less than this car. Dealer: Motor Match Stockport in Stockport. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-959980fd3a45