2021 Audi Q3 2.0 TDI S Line
Price: £21,445. Fair price: £1,241 (6%) over the AskCar estimate of £20,204, 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 4WD Euro 6 (s/s) 5dr Sportback (148 bhp)
- Year: 2021
- Mileage: 70,000 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 2.0 litres, 148 bhp
- Gearbox: Automatic (S tronic)
- Drive: Four-wheel drive
- Colour: White
- CO2: 164 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Audi Q3 S Line has covered 70,000 miles, around 27,900 more miles than is typical for its age. The dealer is asking £21,445, which is £1,241 above the AskCar estimate of £20,204. To work out the AskCar estimate, we analyse UK dealer adverts for 3,488 Audi Q3 cars across different ages and specifications. This car was first seen in our listings data 14 days ago. It is for sale at Morgan Cars and Commercials in Ballyclare. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £1,241 (6%) over the AskCar estimate of £20,204.
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 14 days.
Price history
AskCar first saw this advert on 21 October 2026 at £21,445. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 27,900 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, grey. Mileage: 71,018 miles. Price: £17,489, £3,956 less than this car. Dealer: The Hertford Car Company in Hertford. AskCar page: https://askcar.co.uk/car/audi-q3-2021-83c6d3ec5f0c
- 2021 Audi Q3 S Line, 2.0 diesel SUV, silver. Mileage: 66,000 miles. Price: £22,995, £1,550 more than this car. Dealer: Bank Motors in Glasgow. AskCar page: https://askcar.co.uk/car/audi-q3-2021-1610110d9431
- 2021 Audi Q3 S Line, 2.0 diesel SUV, grey. Mileage: 65,250 miles. Price: £20,945, £500 less 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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- Used Audi Q3 for sale near Antrim
Photos
2 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.