2021 Audi Q3 2.0 TDI S Line
Price: £20,945. Fair price: £91 (under 1%) over the AskCar estimate of £20,854, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,499 priced Audi Q3 adverts on AskCar as of 5 November 2026.
AskCar lists 3,564 used Audi Q3 from 1,628 UK dealerships, as of 5 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: 65,250 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 2.0 litres, 148 bhp
- Gearbox: Automatic (S tronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 164 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 Audi Q3 S Line is advertised with 65,250 miles, approximately 23,300 above the typical mileage for its age. Priced at £20,945, it is advertised £91 above the AskCar estimate of £20,854. The AskCar estimate uses UK dealer asking prices, including 3,499 Audi Q3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale 22 days ago. You can find this car 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 5 November 2026.
Price
Fair price: £91 (under 1%) over the AskCar estimate of £20,854.
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 3,499 priced Audi Q3 adverts across different ages and specifications, as of 5 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 5 November 2026.
Time on sale
This 2021 Audi Q3 has been on sale for at least 22 days.
Price history
AskCar first saw this advert on 14 October 2026 at £20,945. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 23,300 miles higher than the median mileage of a 2021 Audi Q3 on AskCar.
Similar cars
20 other 2021 Audi Q3 S Line 2.0 diesel automatic SUVs are for sale at UK dealers, from £14,499 to £22,995, as of 5 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, £2,457 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, silver. Mileage: 66,000 miles. Price: £22,995, £2,050 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, blue. Mileage: 64,000 miles. Price: £20,395, £550 less than this car. Dealer: MC Autosales in Magherafelt. AskCar page: https://askcar.co.uk/car/audi-q3-2021-77950fe7dd51
- The nearest: 2021 Audi Q3 S Line, 2.0 diesel SUV, white, under a mile from this car. Mileage: 70,000 miles. Price: £21,445, £500 more than this car. Dealer: Morgan Cars and Commercials in Ballyclare. AskCar page: https://askcar.co.uk/car/audi-q3-2021-a05bf45d0483
Browse all Audi Q3 cars for sale · 2021 Audi Q3 price guide
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Photos
1 photo of this car is on its AskCar page.
As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.