2021 Audi Q3 1.5 S Line

Price: £18,995. Good value: £2,116 (10%) under the AskCar estimate of £21,111, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,432 priced Audi Q3 adverts on AskCar as of 2 November 2026.

AskCar lists 3,502 used Audi Q3 from 1,622 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: Q3
  • Trim: S Line
  • Version: 1.5 TFSI S Line S tronic FWD Euro 6 5dr (148 bhp)
  • Year: 2021
  • Mileage: 37,532 miles
  • Fuel: Petrol
  • Body: Estate, 5 doors, 5 seats
  • Engine: 1.5 litres, 148 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 159 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q3 S Line has covered 37,532 miles, around 4,500 fewer miles than is typical for its age. The AskCar estimate for this car is £21,111. It is priced at £18,995, which is £2,116 below that estimate. The AskCar estimate uses 3,432 UK dealer adverts for the Audi Q3, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 96 days ago, the asking price has dropped by £2,091. We checked its advertised mileage against the government's MOT record, and they match. The seller is LSH Auto Mercedes-Benz of Stockport, based in Stockport. 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

Good value: £2,116 (10%) under the AskCar estimate of £21,111.

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 1.5 petrol engine is typically advertised at £20,000: the median of the 211 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Audi Q3 has been on sale for at least 96 days.

Price history

AskCar first saw this advert on 29 July 2026 at £21,086. Its asking price is now £18,995, £2,091 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

  • 29 July 2026: £21,086
  • 29 August 2026: £19,783
  • 16 September 2026: £19,707
  • 19 September 2026: £19,495
  • 3 October 2026: £18,995
  • 9 October 2026: £19,795
  • 24 October 2026: £19,495
  • 29 October 2026: £18,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 17 March 2027.

It has had 3 MOTs. The latest, on 11 March 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge; offside rear tyre has a cut but not deep enough to reach the ply or cords.

Mileage at that test: 34,827 miles, which matches the advertised 37,532 miles.

Advertised mileage is about 4,500 miles lower than the median mileage of a 2021 Audi Q3 on AskCar.

Similar cars

4 other 2021 Audi Q3 S Line 1.5 petrol automatic estates are for sale at UK dealers, from £20,299 to £21,684, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2021 Audi Q3 S Line, 1.5 petrol estate, black. Mileage: 36,618 miles. Price: £20,299, £1,304 more than this car. Dealer: Hendy Car Store Portsmouth in Portsmouth. AskCar page: https://askcar.co.uk/car/audi-q3-2021-bf2dd1df0841
  • 2021 Audi Q3 S Line, 1.5 petrol estate, grey. Mileage: 34,626 miles. Price: £21,500, £2,505 more than this car. Dealer: Marshall BMW Scunthorpe in Scunthorpe. AskCar page: https://askcar.co.uk/car/audi-q3-2021-ffec11506fcb
  • 2021 Audi Q3 S Line, 1.5 petrol estate, black. Mileage: 34,500 miles. Price: £21,684, £2,689 more than this car. Dealer: Vindis Group Peterborough Audi in Peterborough. AskCar page: https://askcar.co.uk/car/audi-q3-2021-d4c5a68ce7c2

Browse all Audi Q3 cars for sale · 2021 Audi Q3 price guide

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Photos

32 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.