2020 Audi A6 Avant 2.0 TDI S Line

Overview

• Make: Audi
• Model: A6 Avant
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 5dr (201 bhp)
• Year: 2020
• Mileage: 42,068 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 152 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 42,068 miles, this 2020 Audi A6 Avant S Line has covered about 30,900 fewer miles than other 2020 Audi A6 Avant cars. Its asking price of £22,207 is £321 below the AskCar estimate of £22,528. The AskCar estimate uses UK dealer asking prices, including 785 Audi A6 Avant adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 70 days ago. Its asking price has since fallen by £530. The government's MOT record matches its advertised mileage. You can find this car at Lookers in Belfast. 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: £321 (1%) under the AskCar estimate of £22,528.

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 70 days.

Price history

AskCar first saw this advert on 27 August 2026 at £22,737. Its asking price is now £22,207, £530 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 27 August 2026: £22,737
• 29 August 2026: £22,965
• 3 September 2026: £22,732
• 5 September 2026: £22,699
• 7 September 2026: £22,927
• 12 September 2026: £22,787
• 16 September 2026: £22,788
• 22 September 2026: £23,120
• 26 September 2026: £22,999
• 4 October 2026: £22,899
• 5 October 2026: £22,799
• 15 October 2026: £22,552
• 18 October 2026: £22,361
• 5 November 2026: £22,207

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 21 August 2027.

It has had 5 MOTs. The latest, on 19 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 42,069 miles, which matches the advertised 42,068 miles.

Advertised mileage is about 30,900 miles lower 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 £14,990 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, black. Mileage: 44,041 miles. Price: £21,991, £216 less than this car. Dealer: Listers Audi Coventry in Coventry. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-acced0be318c
• 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 54,000 miles. Price: £19,900, £2,307 less than this car. Dealer: Automoto UK in Banbridge. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-17697c90fe36
• 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 54,469 miles. Price: £23,000, £793 more than this car. Dealer: Sytner Group Audi Reading in Reading. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-1866fd06d900

• The nearest: 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey, 3 miles from this car. Mileage: 74,000 miles. Price: £18,750, £3,457 less than this car. Dealer: The Car Company in Belfast. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-e456e1599691