2021 Audi Q3 2.0 TDI S Line
Version: 2.0 TDI S Line S tronic FWD Euro 6 5dr (147 bhp)
Price: £19,900. Fair price: £846 (4%) under the AskCar estimate of £20,746, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,459 priced Audi Q3 adverts on AskCar as of 30 October 2026.
AskCar lists 3,504 used Audi Q3 from 1,613 UK dealerships, as of 30 October 2026.
Overview
- Make
- Audi
- Model
- Q3
- Trim
- S Line
- Version
- 2.0 TDI S Line S tronic FWD Euro 6 5dr (147 bhp)
- Mileage
- 44,137 miles
- Year
- 2021
- Fuel type
- Diesel
- Engine
- 2.0 L
- Gearbox
- Automatic
- Power
- 147 bhp
- Seats
- 5
- CO2
- 150 g/km
- Colour
- Blue
- Doors
- 5
- Driven wheels
- Front Wheel Drive
- Gearbox version
- S tronic
- Engine badge
- TDI
- Emissions standard
- Euro 6
About this car
This 2021 Audi Q3 S Line is advertised with 44,137 miles on the clock. The AskCar estimate for this car is £20,746. It is priced at £19,900, which is £846 below that estimate. The AskCar estimate uses UK dealer asking prices, including 3,459 Audi Q3 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert today. Its recorded MOT is valid until 6 January 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Sytner Select Northampton, based in Northampton.
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 | £19,900 |
Price and mileage comparison
Fair price: £846 (4%) under the AskCar estimate of £20,746.
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 3,459 priced Audi Q3 adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 2,000 miles higher than the median mileage of a 2021 Audi Q3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 6 January 2027. 39,703 miles at the last test.
Other matching cars
28 other 2021 Audi Q3 S Line automatic diesel cars are for sale at UK dealers from £13,990 to £27,750, as of 30 October 2026.
The 5 cheapest:
- 2021 Audi Q3. Price: £13,990. Mileage: 118,000 miles. Dealer: Motorland in Peterborough. AskCar page: https://askcar.co.uk/car/audi-q3-2021-9fd36734d4d2
- 2021 Audi Q3. Price: £14,809. Mileage: 133,000 miles. Dealer: FM Motor Co in Wembley. AskCar page: https://askcar.co.uk/car/audi-q3-2021-3e346cc7d68a
- 2021 Audi Q3. Price: £14,899. Mileage: 102,770 miles. Dealer: Audi Technik Centre in Glasgow. AskCar page: https://askcar.co.uk/car/audi-q3-2021-7d4bbf082851
- 2021 Audi Q3. Price: £15,650. Mileage: 98,486 miles. Dealer: Evans Halshaw BYD Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-q3-2021-2b4fb57d4ebe
- 2021 Audi Q3. Price: £15,990. Mileage: 86,182 miles. Dealer: Jan Autos in Luton. AskCar page: https://askcar.co.uk/car/audi-q3-2021-f50618c70213
The 28 matching cars have covered 7,909 to 133,000 miles, compared with 44,137 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 Q3 cars for sale · 2021 Audi Q3 price guide
More like this
Photos
29 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.