2021 Audi A5 2.0 TDI S Line
Price: £16,500. Fair price: £456 (2%) over the AskCar estimate of £16,044, 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: 80,668 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: Blue
- CO2: 134 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Audi A5 S Line has covered 80,668 miles, around 29,700 more miles than is typical for its age. The dealer is asking £16,500, which is £456 above the AskCar estimate of £16,044. To work out the AskCar estimate, we analyse UK dealer adverts for 1,830 Audi A5 cars across different ages and specifications. It first appeared in our advert records 36 days ago. Its advertised mileage matches the government's MOT record. The seller is Yeovil Audi, based in Poole. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 2 November 2026.
Price
Fair price: £456 (2%) over the AskCar estimate of £16,044.
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 36 days.
Price history
AskCar first saw this advert on 27 September 2026 at £16,500. 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 14 June 2027.
It failed its MOT on 8 June 2026 (nearside front headlamp aim too low) and passed later the same day.
There were no advisories at the latest test.
Mileage at that test: 78,121 miles, which matches the advertised 80,668 miles.
Advertised mileage is about 29,700 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 £18,490 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, £2,495 more than 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, black. Mileage: 70,811 miles. Price: £18,950, £2,450 more than 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, grey. Mileage: 65,500 miles. Price: £18,995, £2,495 more than this car. Dealer: Empire Autos NI in Craigavon. AskCar page: https://askcar.co.uk/car/audi-a5-2021-33e5e3507d71
- The nearest: 2021 Audi A5 S Line, 2.0 diesel coupe, grey, 87 miles from this car. Mileage: 41,825 miles. Price: £18,995, £2,495 more than this car. Dealer: Sinclair Direct in Bridgend. AskCar page: https://askcar.co.uk/car/audi-a5-2021-3bb30e12bec9
Browse all Audi A5 cars for sale · 2021 Audi A5 price guide
More like this
- Used Audi A5 S Line prices
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- Used diesel Audi A5 for sale
Photos
20 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.