2021 Audi Q3 2.0 TDI S Line
Price: £14,499. Fair price: £652 (4%) over the AskCar estimate of £13,847, 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 S Line S tronic FWD Euro 6 5dr (147 bhp)
- Year: 2021
- Mileage: 102,770 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 2.0 litres, 147 bhp
- Gearbox: Automatic (S tronic)
- Drive: Front-wheel drive
- Colour: White
- CO2: 150 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 102,770 miles, this 2021 Audi Q3 S Line has covered about 60,600 more miles than other 2021 Audi Q3 cars. Its asking price of £14,499 is £652 above the AskCar estimate of £13,847. The AskCar estimate uses UK dealer asking prices, including 3,488 Audi Q3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 152 days ago. Its asking price has since fallen by £1,000. The government's MOT record matches its advertised mileage. You can find this car at Audi Technik Centre in Glasgow. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Fair price: £652 (4%) over the AskCar estimate of £13,847.
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 152 days.
Price history
AskCar first saw this advert on 5 June 2026 at £15,499. Its asking price is now £14,499, £1,000 less. The latest price cut was seen on 4 November 2026.
Price changes recorded:
- 5 June 2026: £15,499
- 17 June 2026: £15,299
- 15 July 2026: £14,999
- 22 August 2026: £14,899
- 4 November 2026: £14,499
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 30 March 2027.
It has had one MOT, on 31 March 2025, and passed.
There were no advisories at the latest test.
Mileage at that test: 78,640 miles, which matches the advertised 102,770 miles.
Advertised mileage is about 60,600 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 £14,809 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, blue. Mileage: 98,486 miles. Price: £15,590, £1,091 more than this car. Dealer: Evans Halshaw BYD Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-q3-2021-2b4fb57d4ebe
- 2021 Audi Q3 S Line, 2.0 diesel SUV, grey. Mileage: 86,182 miles. Price: £15,990, £1,491 more 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, black. Mileage: 81,102 miles. Price: £17,498, £2,999 more than this car. Dealer: Arnold Clark Burton upon Trent Motorstore in Burton upon Trent. AskCar page: https://askcar.co.uk/car/audi-q3-2021-10e03a36b786
- The nearest: 2021 Audi Q3 S Line, 2.0 diesel SUV, silver, 5 miles from this car. Mileage: 66,000 miles. Price: £22,995, £8,496 more than this car. Dealer: Bank Motors in Glasgow. AskCar page: https://askcar.co.uk/car/audi-q3-2021-1610110d9431
Browse all Audi Q3 cars for sale · 2021 Audi Q3 price guide
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Photos
39 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.