2021 Audi A5 2.0 TDI S Line

Price: £18,989. Fair price: £589 (3%) under the AskCar estimate of £19,578, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,830 priced Audi A5 adverts on AskCar as of 2 November 2026.

AskCar lists 1,887 used Audi A5 from 1,070 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A5
  • Trim: S Line
  • Version: 2.0 TDI 40 S Line S tronic 4WD Euro 6 (s/s) 5dr Sportback (201 bhp)
  • Year: 2021
  • Mileage: 68,000 miles
  • Fuel: Diesel, mild hybrid
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 2.0 litres, 201 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Four-wheel drive
  • Colour: White
  • CO2: 150 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 68,000 miles on the clock, this 2021 Audi A5 S Line has done roughly 17,000 more miles than a typical 2021 Audi A5. The AskCar estimate for this car is £19,578. It is priced at £18,989, which is £589 below that estimate. The AskCar estimate uses UK dealer asking prices, including 1,830 Audi A5 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 17 days. The government's MOT record matches its advertised mileage. 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: £589 (3%) under the AskCar estimate of £19,578.

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 1,830 priced Audi A5 adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A5 with the 2.0 diesel engine is typically advertised at £19,700: the median of the 119 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Audi A5 has been on sale for at least 17 days.

Price history

AskCar first saw this advert on 16 October 2026 at £18,489. Its asking price is now £18,989, £500 more.

Price changes recorded:

  • 16 October 2026: £18,489
  • 30 October 2026: £18,289
  • 2 November 2026: £18,989

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 1 July 2027.

It has had 4 MOTs. The latest, on 26 June 2026, passed.

Advisories at the latest test: rear brake disc worn, but not excessively both.

Mileage at that test: 62,940 miles, which matches the advertised 68,000 miles.

Advertised mileage is about 17,000 miles higher than the median mileage of a 2021 Audi A5 on AskCar.

Similar cars

30 other 2021 Audi A5 S Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £13,995 to £22,990, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2021 Audi A5 S Line, 2.0 diesel hatchback, grey. Mileage: 68,000 miles. Price: £18,000, £989 less than this car. Dealer: John Clark Select Edinburgh in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a5-2021-38b6413ee518
  • 2021 Audi A5 S Line, 2.0 diesel hatchback, white. Mileage: 68,126 miles. Price: £17,990, £999 less than this car. Dealer: Auto Zone Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a5-2021-235481043439
  • 2021 Audi A5 S Line, 2.0 diesel hatchback, grey. Mileage: 64,000 miles. Price: £18,950, the same price as this car. Dealer: United Car Sales in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a5-2021-8107d34f4fc4

Browse all Audi A5 cars for sale · 2021 Audi A5 price guide

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Photos

63 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.