2021 Audi A5 2.0 TDI S Line
Price: £18,995. Fair price: £1,132 (6%) over the AskCar estimate of £17,863, 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: 65,500 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: Grey
- CO2: 134 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
With 65,500 miles on the clock, this 2021 Audi A5 S Line has done roughly 14,500 more miles than a typical 2021 Audi A5. Its asking price of £18,995 is £1,132 above the AskCar estimate of £17,863. To work out the AskCar estimate, we analyse UK dealer adverts for 1,830 Audi A5 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 114 days, and its asking price is down £2,000. Its advertised mileage matches the government's MOT record. The seller is Empire Autos NI, based in Craigavon. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £1,132 (6%) over the AskCar estimate of £17,863.
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
The dealer may accept less. This 2021 Audi A5 has been on sale for at least 114 days, and its asking price has been cut by £2,000. About half of 2021 Audi A5 cars are gone from sale within a month of being advertised: 84 of the 157 first advertised between 8 July 2026 and 29 September 2026.
Price history
AskCar first saw this advert on 11 July 2026 at £20,995. Its asking price is now £18,995, £2,000 less. The latest price cut was seen on 26 September 2026.
Price changes recorded:
- 12 July 2026: £20,995
- 26 September 2026: £18,995
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 24 November 2026.
It has had 2 MOTs. The latest, on 20 November 2025, passed.
Advisories at the latest test: nearside rear lower coil spring mounting corroded but not seriously weakened; offside rear lower coil spring mounting corroded but not seriously weakened.
Mileage at that test: 60,769 miles, which matches the advertised 65,500 miles.
Advertised mileage is about 14,500 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, black. Mileage: 70,811 miles. Price: £18,950, the same price as this car. Dealer: Jack Reid Cars in Carrickfergus. AskCar page: https://askcar.co.uk/car/audi-a5-2021-c95f2b333e46
- 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, blue. Mileage: 80,668 miles. Price: £16,500, £2,495 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
36 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.