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: 34,000 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

This 2020 Audi A6 Saloon S Line has covered 34,000 miles, around 23,900 fewer miles than is typical for its age. Its asking price of £19,950 is £873 below the AskCar estimate of £20,823. To work out the AskCar estimate, we analyse UK dealer adverts for 871 Audi A6 Saloon cars across different ages and specifications. We first saw this car advertised 49 days ago. Its asking price has since fallen by £1,000. Our latest MOT record expired on 2 November 2026. Check the current position with the dealer. The government's MOT record matches its advertised mileage. It is advertised by Westleigh Prestige in Basildon. 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: £873 (4%) under the AskCar estimate of £20,823.

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 49 days.

Price history

AskCar first saw this advert on 17 September 2026 at £20,950. Its asking price is now £19,950, £1,000 less. The latest price cut was seen on 18 October 2026.

Price changes recorded:

• 17 September 2026: £20,950
• 7 October 2026: £20,450
• 18 October 2026: £19,950

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 2 November 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 27 October 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 30,362 miles, which matches the advertised 34,000 miles.

Advertised mileage is about 23,900 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: 34,000 miles. Price: £20,450, £500 more than this car. Dealer: Farlan Automotive in Wembley. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-43ab3193a800
• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, black. Mileage: 38,780 miles. Price: £18,900, £1,050 less than this car. Dealer: Motor Match Stockport in Stockport. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-959980fd3a45
• 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, grey. Mileage: 28,000 miles. Price: £21,999, £2,049 more than this car. Dealer: AB Car Sales in Gunnislake. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-d5fd3b2284e4

• The nearest: 2020 Audi A6 Saloon S Line, 2.0 diesel saloon, black, 15 miles from this car. Mileage: 45,420 miles. Price: £14,990, £4,960 less than this car. Dealer: B&T Autos in Rainham. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2020-ca2265063467