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 4WD Euro 6 5dr (201 bhp)
• Year: 2021
• Mileage: 38,749 miles
• Fuel: Diesel
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A6 Avant Black Edition has covered 38,749 miles, around 12,900 fewer miles than is typical for its age. Its asking price of £25,498 is £950 below the AskCar estimate of £26,448. The AskCar estimate uses 774 UK dealer adverts for the Audi A6 Avant, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 1 day ago. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Dundee Kia, based in Dundee. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £950 (3%) under the AskCar estimate of £26,448.

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 774 priced Audi A6 Avant adverts across different ages and specifications, as of 4 November 2026.

A 2021 Audi A6 Avant with the 2.0 diesel engine is typically advertised at £22,400: the median of the 35 for sale on AskCar, as of 4 November 2026.

Time on sale

AskCar first saw this 2021 Audi A6 Avant advertised 1 day ago. About 6 in 10 of 2021 Audi A6 Avant cars are gone from sale within a month of being advertised: 35 of the 62 first advertised between 13 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £25,498. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 9 October 2027.

It has had 3 MOTs. The latest, on 10 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 38,187 miles, which matches the advertised 38,749 miles.

Advertised mileage is about 12,900 miles lower than the median mileage of a 2021 Audi A6 Avant on AskCar.

Similar cars

14 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 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A6 Avant Black Edition, 2.0 diesel estate, grey. Mileage: 37,637 miles. Price: £23,500, £1,998 less than this car. Dealer: Uniche Motor Company in Detling. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-54ad59bc0045
• 2021 Audi A6 Avant Black Edition, 2.0 diesel estate, white. Mileage: 41,655 miles. Price: £23,714, £1,784 less than this car. Dealer: Preston Ramsey Cars in Thornaby-on-Tees. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-b5ff041f482e
• 2021 Audi A6 Avant Black Edition, 2.0 diesel estate, white. Mileage: 33,959 miles. Price: £25,095, £403 less than this car. Dealer: Cars 2 Omoda Jaecoo Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-becaed63ef48

• The nearest: 2021 Audi A6 Avant Black Edition, 2.0 diesel estate, black, 110 miles from this car. Mileage: 55,006 miles. Price: £23,250, £2,248 less than this car. Dealer: Harpers Cumbria in Carlisle. AskCar page: https://askcar.co.uk/car/audi-a6-avant-2021-68320c0fb6de