2021 Audi Q3 2.0 TDI S Line
Price: £20,395. Fair price: £1,379 (7%) over the AskCar estimate of £19,016, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,488 priced Audi Q3 adverts on AskCar as of 4 November 2026.
AskCar lists 3,545 used Audi Q3 from 1,632 UK dealerships, as of 4 November 2026.
Overview
- Make: Audi
- Model: Q3
- Trim: S Line
- Version: 2.0 TDI 35 S Line S tronic FWD Euro 6 (s/s) 5dr (148 bhp)
- Year: 2021
- Mileage: 64,000 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 2.0 litres, 148 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Colour: Blue
- CO2: 158 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 64,000 miles, this 2021 Audi Q3 S Line has covered about 21,900 more miles than other 2021 Audi Q3 cars. Its asking price of £20,395 is £1,379 above the AskCar estimate of £19,016. The AskCar estimate draws on 3,488 Audi Q3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 150 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is MC Autosales, based in Magherafelt. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £1,379 (7%) over the AskCar estimate of £19,016.
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 3,488 priced Audi Q3 adverts across different ages and specifications, as of 4 November 2026.
A 2021 Audi Q3 with the 2.0 diesel engine is typically advertised at £20,300: the median of the 75 for sale on AskCar, as of 4 November 2026.
Time on sale
This 2021 Audi Q3 has been on sale for at least 150 days.
Price history
AskCar first saw this advert on 7 June 2026 at £20,395. 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 4 November 2026: valid until 7 June 2027.
It has had 4 MOTs. The latest, on 8 June 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 64,279 miles, which matches the advertised 64,000 miles.
Advertised mileage is about 21,900 miles higher than the median mileage of a 2021 Audi Q3 on AskCar.
Similar cars
21 other 2021 Audi Q3 S Line 2.0 diesel automatic SUVs are for sale at UK dealers, from £14,499 to £23,500, as of 4 November 2026.
The 3 closest to this car in mileage:
- 2021 Audi Q3 S Line, 2.0 diesel SUV, silver. Mileage: 65,000 miles. Price: £18,488, £1,907 less than this car. Dealer: The Car Traders London in Romford. AskCar page: https://askcar.co.uk/car/audi-q3-2021-7020d181d7d6
- 2021 Audi Q3 S Line, 2.0 diesel SUV, white. Mileage: 62,895 miles. Price: £20,290, £105 less than this car. Dealer: Fermanagh Auto Sales in Enniskillen. AskCar page: https://askcar.co.uk/car/audi-q3-2021-370f2a4406de
- 2021 Audi Q3 S Line, 2.0 diesel SUV, grey. Mileage: 65,250 miles. Price: £20,945, £550 more than this car. Dealer: Morgan Cars and Commercials in Ballyclare. AskCar page: https://askcar.co.uk/car/audi-q3-2021-09aaf788f793
Browse all Audi Q3 cars for sale · 2021 Audi Q3 price guide
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Photos
13 photos of this car are on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.