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: 67,157 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 67,157 miles on the clock, this 2020 Audi A6 Avant S Line has done roughly 5,800 fewer miles than a typical 2020 Audi A6 Avant. Priced at £18,150, it is advertised £1,382 below the AskCar estimate of £19,532. 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 £249. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is EMG Motor Group Haverhill, based in Haverhill. 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: £1,382 (7%) under the AskCar estimate of £19,532.

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 £18,399. Its asking price is now £18,150, £249 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 9 October 2026: £18,399
• 24 October 2026: £18,299
• 3 November 2026: £18,150

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 25 February 2027.

It has had 5 MOTs. The latest, on 26 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 58,657 miles, which matches the advertised 67,157 miles.

Advertised mileage is about 5,800 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, grey. Mileage: 71,629 miles. Price: £18,995, £845 more than this car. Dealer: Wallace Car Sales in Bolton. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-1c2e90bf10d5
• 2020 Audi A6 Avant S Line, 2.0 diesel estate, silver. Mileage: 61,653 miles. Price: £19,995, £1,845 more than this car. Dealer: Forth Carz in Falkirk. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-dce5915d33a2
• 2020 Audi A6 Avant S Line, 2.0 diesel estate, grey. Mileage: 72,692 miles. Price: £16,495, £1,655 less than this car. Dealer: Banks Of The Tyne Motor Company in Hebburn. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-9187a355dc32

• The nearest: 2020 Audi A6 Avant S Line, 2.0 diesel estate, 44 miles from this car. Price: £15,899, £2,251 less than this car. Dealer: MSK Cars in London. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2020-ae137c383a3f