2021 Audi Q3 2.0 TDI S Line

Overview

• Make: Audi
• Model: Q3
• Trim: S Line
• Version: 2.0 TDI 35 S Line S tronic 4WD Euro 6 (s/s) 5dr (148 bhp)
• Year: 2021
• Mileage: 81,102 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q3 S Line is advertised with 81,102 miles, approximately 39,100 above the typical mileage for its age. Its asking price of £17,498 is £355 below the AskCar estimate of £17,853. To work out the AskCar estimate, we analyse UK dealer adverts for 3,432 Audi Q3 cars across different ages and specifications. It first appeared in our advert records 34 days ago. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Burton upon Trent Motorstore, based in Burton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £355 (1%) under the AskCar estimate of £17,853.

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 3,432 priced Audi Q3 adverts across different ages and specifications, as of 2 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 2 November 2026.

Time on sale

This 2021 Audi Q3 has been on sale for at least 34 days.

Price history

AskCar first saw this advert on 29 September 2026 at £17,498. 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 2 November 2026: valid until 3 September 2027.

It has had 4 MOTs. The latest, on 28 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 79,685 miles, which matches the advertised 81,102 miles.

Advertised mileage is about 39,100 miles higher than the median mileage of a 2021 Audi Q3 on AskCar.

Similar cars

22 other 2021 Audi Q3 S Line 2.0 diesel automatic SUVs are for sale at UK dealers, from £13,990 to £23,500, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi Q3 S Line, 2.0 diesel SUV, grey. Mileage: 77,398 miles. Price: £15,999, £1,499 less than this car. Dealer: DT Vehicle Sales in Nottingham. AskCar page: https://askcar.co.uk/car/audi-q3-2021-2f3127b8d2ff
• 2021 Audi Q3 S Line, 2.0 diesel SUV, grey. Mileage: 86,182 miles. Price: £15,990, £1,508 less than this car. Dealer: Jan Autos in Luton. AskCar page: https://askcar.co.uk/car/audi-q3-2021-f50618c70213
• 2021 Audi Q3 S Line, 2.0 diesel SUV, grey. Mileage: 71,018 miles. Price: £17,989, £491 more than this car. Dealer: The Hertford Car Company in Hertford. AskCar page: https://askcar.co.uk/car/audi-q3-2021-83c6d3ec5f0c

• The nearest: 2021 Audi Q3 S Line, 2.0 diesel SUV, blue, 30 miles from this car. Mileage: 33,714 miles. Price: £20,150, £2,652 more than this car. Dealer: Evans Halshaw BYD Chesterfield in Chesterfield. AskCar page: https://askcar.co.uk/car/audi-q3-2021-55725fc3cdfc