2021 Audi S4 3.0 TDI V6 Black Edition

Price: £28,450. Fair price: £242 (under 1%) over the AskCar estimate of £28,208, our expected asking price for this car from its model, age, mileage and specification, drawing on 93 priced Audi S4 adverts on AskCar as of 6 November 2026.

AskCar lists 95 used Audi S4 from 84 UK dealerships, as of 6 November 2026.

Overview

  • Make: Audi
  • Model: S4
  • Trim: Black Edition
  • Version: 3.0 TDI V6 Black Edition Tiptronic 4WD Euro 6 (s/s) 4dr (336 bhp)
  • Year: 2021
  • Mileage: 53,000 miles
  • Fuel: Diesel
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 3.0 litres, 336 bhp
  • Gearbox: Automatic (Tiptronic)
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 185 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2021 Audi S4 Black Edition is 53,000 miles. Priced at £28,450, it is advertised £242 above the AskCar estimate of £28,208. The AskCar estimate uses 93 UK dealer adverts for the Audi S4, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 47 days ago. Its asking price has since fallen by £1,000. You can find this car at JGM Group in Belfast. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £242 (under 1%) over the AskCar estimate of £28,208.

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 93 priced Audi S4 adverts across different ages and specifications, as of 6 November 2026.

Time on sale

This 2021 Audi S4 has been on sale for at least 47 days.

Price history

AskCar first saw this advert on 20 September 2026 at £29,450. Its asking price is now £28,450, £1,000 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

  • 20 September 2026: £29,450
  • 7 October 2026: £28,995
  • 1 November 2026: £28,450

Browse all Audi S4 cars for sale · 2021 Audi S4 price guide

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Photos

34 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.