2021 Audi A6 Avant 2.0 TDI Black Edition

Overview

• Make: Audi
• Model: A6 Avant
• Trim: Black Edition
• Version: 2.0 TDI Black Edition S tronic Euro 6 5dr (201 bhp)
• Year: 2021
• Mileage: 51,900 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Colour: Grey
• CO2: 154 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2021 Audi A6 Avant Black Edition is 51,900 miles. Priced at £23,799, it is advertised £438 above the AskCar estimate of £23,361. 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 161 days ago. Its asking price has since fallen by £1,200. Our records show an MOT expiry date of 20 September 2026, which has passed. Ask the dealer for an update. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Sandles Cars in Kings Lynn. 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: £438 (1%) over the AskCar estimate of £23,361.

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 2021 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £22,400: the median of the 37 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 Audi A6 Avant has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £24,999. Its asking price is now £23,799, £1,200 less. The latest price cut was seen on 14 October 2026.

Price changes recorded:

• 28 May 2026: £24,999
• 23 July 2026: £24,799
• 27 August 2026: £24,499
• 23 September 2026: £23,999
• 14 October 2026: £23,799

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 20 September 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 11 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 44,647 miles, which matches the advertised 51,900 miles.

Advertised mileage is about 300 miles higher than the median mileage of a 2021 Audi A6 Avant on AskCar.

Similar cars

15 other 2021 Audi A6 Avant Black Edition 2.0 diesel automatic estates are for sale at UK dealers, from £17,985 to £26,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A6 Avant Black Edition, 2.0 diesel estate, white. Mileage: 52,603 miles. Price: £21,995, £1,804 less than this car. Dealer: UK Car Solutions in Bromley. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-f2bb1b75aa0a
• 2021 Audi A6 Avant Black Edition, 2.0 diesel estate, silver. Mileage: 51,000 miles. Price: £26,995, £3,196 more than this car. Dealer: Empire Autos NI in Craigavon. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-04cdd0c08d13
• 2021 Audi A6 Avant Black Edition, 2.0 diesel estate, black. Mileage: 54,176 miles. Price: £22,386, £1,413 less than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-2b6e59983993

• The nearest: 2021 Audi A6 Avant Black Edition, 2.0 diesel estate, grey, 83 miles from this car. Mileage: 32,441 miles. Price: £26,200, £2,401 more than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-853a137e483d