2021 Audi A4 Avant 2.0 TDI Black Edition

Overview

• Make: Audi
• Model: A4 Avant
• Trim: Black Edition
• Version: 2.0 TDI Black Edition S tronic Euro 6 5dr
• Year: 2021
• Mileage: 40,325 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres
• Gearbox: Automatic (S tronic)
• Colour: White
• CO2: 152 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 40,325 miles on the clock, this 2021 Audi A4 Avant Black Edition has done roughly 19,400 fewer miles than a typical 2021 Audi A4 Avant. Priced at £23,925, it is advertised £1,119 above the AskCar estimate of £22,806. The AskCar estimate draws on 1,232 Audi A4 Avant adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 155 days ago, the asking price has dropped by £300. Its advertised mileage matches the government's MOT record. It is for sale at One 2 One Autos in Windsor. 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: £1,119 (4%) over the AskCar estimate of £22,806.

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 1,232 priced Audi A4 Avant adverts across different ages and specifications, as of 4 November 2026.

A 2021 Audi A4 Avant with the 2.0 diesel engine is typically advertised at £18,500: the median of the 95 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 Audi A4 Avant has been on sale for at least 155 days.

Price history

AskCar first saw this advert on 2 June 2026 at £24,225. Its asking price is now £23,925, £300 less. The latest price cut was seen on 15 August 2026.

Price changes recorded:

• 2 June 2026: £24,225
• 15 August 2026: £23,925

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 13 March 2027.

It has had 3 MOTs. The latest, on 14 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 40,313 miles, which matches the advertised 40,325 miles.

Advertised mileage is about 19,400 miles lower than the median mileage of a 2021 Audi A4 Avant on AskCar.

Similar cars

11 other 2021 Audi A4 Avant Black Edition 2.0 diesel automatic estates are for sale at UK dealers, from £15,110 to £23,999, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A4 Avant Black Edition, 2.0 diesel estate, blue. Mileage: 46,000 miles. Price: £23,999, £74 more than this car. Dealer: Heston Automotive in Hayes. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-53abe1342407
• 2021 Audi A4 Avant Black Edition, 2.0 diesel estate, white. Mileage: 55,311 miles. Price: £18,985, £4,940 less than this car. Dealer: SG Motorhouse in Hoddesdon. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-23d03c2f2c67
• 2021 Audi A4 Avant Black Edition, 2.0 diesel estate, grey. Mileage: 55,796 miles. Price: £21,000, £2,925 less than this car. Dealer: Sytner Group Audi Reading in Reading. AskCar page: https://askcar.co.uk/car/audi-a4-avant-2021-2b0bacf7a7aa