2021 Audi A6 Saloon 2.0 TDI Black Edition

Price: £17,700. Fair price: £405 (2%) under the AskCar estimate of £18,105, our expected asking price for this car from its model, age, mileage and specification, drawing on 858 priced Audi A6 Saloon adverts on AskCar as of 2 November 2026.

AskCar lists 886 used Audi A6 Saloon from 654 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A6 Saloon
  • Trim: Black Edition
  • Version: 2.0 TDI 40 Black Edition S tronic 4WD Euro 6 (s/s) 4dr (201 bhp)
  • Year: 2021
  • Mileage: 83,354 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 201 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Four-wheel drive
  • Colour: Black
  • CO2: 152 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A6 Saloon Black Edition is advertised with 83,354 miles, approximately 26,300 above the typical mileage for its age. Priced at £17,700, it is advertised £405 below the AskCar estimate of £18,105. The AskCar estimate uses 858 UK dealer adverts for the Audi A6 Saloon, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 158 days ago, the asking price has dropped by £1,290. Our records show an MOT expiry date of 5 August 2025, which has passed. Ask the dealer for an update. We checked its advertised mileage against the government's MOT record, and they match. The seller is Carworld Car Supermarket, based in Peterborough. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £405 (2%) under the AskCar estimate of £18,105.

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 858 priced Audi A6 Saloon adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A6 Saloon with the 2.0 diesel engine is typically advertised at £18,500: the median of the 80 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Audi A6 Saloon has been on sale for at least 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £18,990. Its asking price is now £17,700, £1,290 less. The latest price cut was seen on 12 October 2026.

Price changes recorded:

  • 28 May 2026: £18,990
  • 29 May 2026: £19,990
  • 26 June 2026: £19,400
  • 30 July 2026: £18,990
  • 21 September 2026: £18,400
  • 12 October 2026: £17,700

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 5 August 2025; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 23 January 2026, failed.

It failed on: engine MIL inoperative or indicates a malfunction; engine MIL inoperative or indicates a malfunction; headlamp aim too high; and 7 more.

Mileage at that test: 82,630 miles, which matches the advertised 83,354 miles.

Advertised mileage is about 26,300 miles higher than the median mileage of a 2021 Audi A6 Saloon on AskCar.

Similar cars

21 other 2021 Audi A6 Saloon Black Edition 2.0 diesel automatic saloons are for sale at UK dealers, from £14,495 to £25,500, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2021 Audi A6 Saloon Black Edition, 2.0 diesel saloon, blue. Mileage: 87,854 miles. Price: £17,495, £205 less than this car. Dealer: Hampton Car Sales in Milton Malsor. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-7ce50abf813a
  • 2021 Audi A6 Saloon Black Edition, 2.0 diesel saloon, blue. Mileage: 74,317 miles. Price: £21,750, £4,050 more than this car. Dealer: Grange Road Motors in Cookstown. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-9f63ac4d4c5a
  • 2021 Audi A6 Saloon Black Edition, 2.0 diesel saloon, black. Mileage: 72,820 miles. Price: £18,842, £1,142 more than this car. Dealer: JCT600 Boston Audi in Boston. AskCar page: https://askcar.co.uk/car/audi-a6-saloon-2021-9710881e7877

Browse all Audi A6 Saloon cars for sale · 2021 Audi A6 Saloon price guide

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Photos

26 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.