2021 Audi A5 2.0 TDI S Line
Version: 2.0 TDI S Line S tronic FWD Euro 6 2dr (160 bhp)
Price: £20,499. Fair price: £839 (3%) under the AskCar estimate of £21,338, our expected asking price for this car from its model, age, mileage and specification, drawing on 1,838 priced Audi A5 adverts on AskCar as of 30 October 2026.
AskCar lists 1,892 used Audi A5 from 1,067 UK dealerships, as of 30 October 2026.
Overview
- Make
- Audi
- Model
- A5
- Trim
- S Line
- Version
- 2.0 TDI S Line S tronic FWD Euro 6 2dr (160 bhp)
- Mileage
- 34,576 miles
- Year
- 2021
- Fuel type
- Diesel
- Body type
- Coupe
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 160 bhp
- Seats
- 4
- CO2
- 133 g/km
- Colour
- Blue
- Doors
- 2
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TDI
- Hybrid type
- Mild hybrid
- Emissions standard
- Euro 6
About this car
With 34,576 miles on the clock, this 2021 Audi A5 S Line has done roughly 16,800 fewer miles than a typical 2021 Audi A5. Priced at £20,499, it is advertised £839 below the AskCar estimate of £21,338. The AskCar estimate draws on 1,838 Audi A5 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. MOT records show an expiry date of 11 October 2027, and the latest recorded mileage is consistent with the advert. The seller is John Clark Motor Group Aberdeen Audi, based in Aberdeen.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 30 October 2026.
| Date observed | Asking price |
|---|---|
| 30 October 2026 | £20,499 |
Price and mileage comparison
Fair price: £839 (3%) under the AskCar estimate of £21,338.
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 1,838 priced Audi A5 adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 16,800 miles lower than the median mileage of a 2021 Audi A5 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 11 October 2027. 34,576 miles at the last test.
Other matching cars
41 other 2021 Audi A5 S Line automatic diesel cars are for sale at UK dealers from £13,995 to £22,990, as of 30 October 2026.
The 5 cheapest:
- 2021 Audi A5. Price: £13,995. Mileage: 111,500 miles. Dealer: Castleton Motor Group in Rochdale. AskCar page: https://askcar.co.uk/car/audi-a5-2021-dda167264eda
- 2021 Audi A5. Price: £15,791. Mileage: 95,052 miles. Dealer: Cardiff Trade Sales in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a5-2021-63c94aa37289
- 2021 Audi A5. Price: £15,850. Mileage: 95,115 miles. Dealer: LIV Motors in Prestwich. AskCar page: https://askcar.co.uk/car/audi-a5-2021-a30d3b58600e
- 2021 Audi A5. Price: £16,450. Mileage: 82,210 miles. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a5-2021-9c6f94bffb32
- 2021 Audi A5. Price: £16,500. Mileage: 80,668 miles. Dealer: Yeovil Audi in Poole. AskCar page: https://askcar.co.uk/car/audi-a5-2021-953c369a5eea
The 41 matching cars have covered 17,325 to 111,500 miles, compared with 34,576 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Audi A5 cars for sale · 2021 Audi A5 price guide
More like this
Photos
26 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.