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: 98,486 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q3 S Line is advertised with 98,486 miles, approximately 56,400 above the typical mileage for its age. Its asking price of £15,590 is £180 below the AskCar estimate of £15,770. To work out the AskCar estimate, we analyse UK dealer adverts for 3,488 Audi Q3 cars across different ages and specifications. The asking price is now £960 lower than when we first recorded the advert 160 days ago. Its advertised mileage matches the government's MOT record. The seller is Evans Halshaw BYD Milton Keynes, based in Milton Keynes. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £180 (1%) under the AskCar estimate of £15,770.

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 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £16,550. Its asking price is now £15,590, £960 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 28 May 2026: £16,550
• 16 June 2026: £16,540
• 22 June 2026: £16,520
• 29 June 2026: £16,340
• 6 July 2026: £16,270
• 13 July 2026: £16,260
• 21 July 2026: £16,250
• 29 July 2026: £15,999
• 3 August 2026: £15,990
• 13 August 2026: £16,630
• 24 August 2026: £16,560
• 28 August 2026: £16,400
• 16 September 2026: £16,330
• 22 September 2026: £16,260
• 29 September 2026: £16,190
• 7 October 2026: £16,000
• 13 October 2026: £15,730
• 20 October 2026: £15,720
• 27 October 2026: £15,650
• 4 November 2026: £15,590

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 3 MOTs. The latest, on 8 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 98,485 miles, which matches the advertised 98,486 miles.

Advertised mileage is about 56,400 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, white. Mileage: 102,770 miles. Price: £14,499, £1,091 less than this car. Dealer: Audi Technik Centre in Glasgow. AskCar page: https://askcar.co.uk/car/audi-q3-2021-7d4bbf082851
• 2021 Audi Q3 S Line, 2.0 diesel SUV, grey. Mileage: 86,182 miles. Price: £15,990, £400 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, £1,908 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, grey, 15 miles from this car. Mileage: 40,326 miles. Price: £18,600, £3,010 more than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/audi-q3-2021-77e2da1d904f