2020 Audi A6 Avant 2.0 TDI S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 2.0 TDI 40 S Line S tronic FWD Euro 6 (s/s) 5dr (201 bhp)
• Year: 2020
• Mileage: 108,966 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 149 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Audi A6 Avant S Line is advertised with 108,966 miles, approximately 36,000 above the typical mileage for its age. Its asking price of £14,990 is £562 above the AskCar estimate of £14,428. The AskCar estimate draws on 785 Audi A6 Avant adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 27 days ago. Its asking price has since fallen by £500. The government's MOT record matches its advertised mileage. It is advertised by Anchor Cars in Padworth. 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: £562 (3%) over the AskCar estimate of £14,428.

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

A 2020 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £18,500: the median of the 32 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 Audi A6 Avant has been on sale for at least 27 days.

Price history

AskCar first saw this advert on 9 October 2026 at £15,490. Its asking price is now £14,990, £500 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 9 October 2026: £15,490
• 18 October 2026: £15,290
• 5 November 2026: £14,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 3 July 2027.

It has had 4 MOTs. The latest, on 30 June 2026, passed.

Advisories at the latest test: all upper front suspension arm bushes just starting to split.

Mileage at that test: 106,321 miles, which matches the advertised 108,966 miles.

Advertised mileage is about 36,000 miles higher than the median mileage of a 2020 Audi A6 Avant on AskCar.

Similar cars

15 other 2020 Audi A6 Avant S Line 2.0 diesel automatic estates are for sale at UK dealers, from £15,490 to £23,000, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 98,000 miles. Price: £15,490, £500 more than this car. Dealer: Mawsley Motor Company in Northampton. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-f7d045ba0d11
• 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 76,249 miles. Price: £17,999, £3,009 more than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-7543018c955e
• 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 74,000 miles. Price: £18,750, £3,760 more than this car. Dealer: The Car Company in Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-e456e1599691

• The nearest: 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey, 7 miles from this car. Mileage: 54,469 miles. Price: £23,000, £8,010 more than this car. Dealer: Sytner Group Audi Reading in Reading. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-1866fd06d900