2021 Audi Q3 2.0 TDI S Line

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: 7,909 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 147 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 149 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q3 S Line is advertised with 7,909 miles, approximately 34,200 below the typical mileage for its age. Its asking price of £23,500 is £758 below the AskCar estimate of £24,258. The AskCar estimate uses 3,488 UK dealer adverts for the Audi Q3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 145 days ago. Its asking price has since fallen by £1,821. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is JCT600 Approved Leeds, based in Leeds. 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: £758 (3%) under the AskCar estimate of £24,258.

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 145 days.

Price history

AskCar first saw this advert on 12 June 2026 at £25,321. Its asking price is now £23,500, £1,821 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 23 June 2026: £25,321
• 2 July 2026: £25,171
• 8 July 2026: £25,000
• 16 July 2026: £24,900
• 27 July 2026: £24,866
• 3 August 2026: £24,865
• 11 August 2026: £24,611
• 19 August 2026: £24,990
• 27 August 2026: £24,611
• 7 September 2026: £24,510
• 14 September 2026: £24,422
• 24 September 2026: £24,210
• 3 October 2026: £24,000
• 10 October 2026: £24,115
• 24 October 2026: £24,000
• 29 October 2026: £23,500

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 April 2027.

It failed its MOT on 1 May 2026 (offside front headlamp aim too high; nearside front headlamp aim too high) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 7,806 miles, which matches the advertised 7,909 miles.

Advertised mileage is about 34,200 miles lower 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 £22,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi Q3 S Line, 2.0 diesel SUV, black. Mileage: 29,913 miles. Price: £22,317, £1,183 less than this car. Dealer: JCT600 Boston Audi in Boston. AskCar page: https://askcar.co.uk/car/audi-q3-2021-a6a1d1547f7c
• 2021 Audi Q3 S Line, 2.0 diesel SUV, blue. Mileage: 33,714 miles. Price: £20,150, £3,350 less than this car. Dealer: Evans Halshaw BYD Chesterfield in Chesterfield. AskCar page: https://askcar.co.uk/car/audi-q3-2021-55725fc3cdfc
• 2021 Audi Q3 S Line, 2.0 diesel SUV, grey. Mileage: 40,000 miles. Price: £19,990, £3,510 less than this car. Dealer: Monarch Motor Company in Redditch. AskCar page: https://askcar.co.uk/car/audi-q3-2021-f22f0b3b376c