2021 Audi A5 2.0 TDI S Line
Price: £18,950. Above the going rate: £1,747 (10%) over the AskCar estimate of £17,203, 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 S Line S tronic FWD Euro 6 2dr (160 bhp)
- Year: 2021
- Mileage: 70,811 miles
- Fuel: Diesel, mild hybrid
- Body: Coupe, 2 doors, 4 seats
- Engine: 2.0 litres, 160 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Colour: Black
- CO2: 133 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Audi A5 S Line is advertised with 70,811 miles, approximately 19,800 above the typical mileage for its age. Its asking price of £18,950 is £1,747 above the AskCar estimate of £17,203. The AskCar estimate uses 1,830 UK dealer adverts for the Audi A5, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 38 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Jack Reid Cars in Carrickfergus. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Above the going rate: £1,747 (10%) over the AskCar estimate of £17,203.
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 38 days.
Price history
AskCar first saw this advert on 25 September 2026 at £18,950. 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 2 November 2026: valid until 1 February 2027.
It has had one MOT, on 2 February 2026, and passed.
There were no advisories at the latest test.
Mileage at that test: 70,086 miles, which matches the advertised 70,811 miles.
Advertised mileage is about 19,800 miles higher than the median mileage of a 2021 Audi A5 on AskCar.
Similar cars
11 other 2021 Audi A5 S Line 2.0 diesel automatic coupes are for sale at UK dealers, from £16,500 to £22,299, as of 2 November 2026.
The 3 closest to this car in mileage:
- 2021 Audi A5 S Line, 2.0 diesel coupe, white. Mileage: 75,000 miles. Price: £18,995, the same price as this car. Dealer: Moy Auto Services in Dungannon. AskCar page: https://askcar.co.uk/car/audi-a5-2021-69c3bd949f41
- 2021 Audi A5 S Line, 2.0 diesel coupe, grey. Mileage: 65,500 miles. Price: £18,995, the same price as this car. Dealer: Empire Autos NI in Craigavon. AskCar page: https://askcar.co.uk/car/audi-a5-2021-33e5e3507d71
- 2021 Audi A5 S Line, 2.0 diesel coupe, blue. Mileage: 80,668 miles. Price: £16,500, £2,450 less than this car. Dealer: Yeovil Audi in Poole. AskCar page: https://askcar.co.uk/car/audi-a5-2021-953c369a5eea
Browse all Audi A5 cars for sale · 2021 Audi A5 price guide
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Photos
23 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.