2021 Audi Q3 1.5 TFSI CoD S Line

Price: £21,469. Fair price: £790 (3%) over the AskCar estimate of £20,679, 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 CoD 35 S Line S tronic FWD Euro 6 (s/s) 5dr (148 bhp)
  • Year: 2021
  • Mileage: 37,878 miles
  • Fuel: Petrol
  • Body: SUV, 5 doors, 5 seats
  • Engine: 1.5 litres, 148 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Front-wheel drive
  • Colour: Grey
  • CO2: 159 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q3 S Line is advertised with 37,878 miles, approximately 4,100 below the typical mileage for its age. Its asking price of £21,469 is £790 above the AskCar estimate of £20,679. 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 33 days ago. Its advertised mileage matches the government's MOT record. The seller is Marriott Motor Group Bury St Edmunds Audi, based in Bury St Edmunds. 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: £790 (3%) over the AskCar estimate of £20,679.

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 33 days.

Price history

AskCar first saw this advert on 30 September 2026 at £21,469. 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 31 March 2027.

It failed its MOT on 13 March 2026 (rear tyre has a tear, caused by separation or partial failure of its structure nearside and offside) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 35,016 miles, which matches the advertised 37,878 miles.

Advertised mileage is about 4,100 miles lower than the median mileage of a 2021 Audi Q3 on AskCar.

Similar cars

38 other 2021 Audi Q3 S Line 1.5 petrol automatic SUVs are for sale at UK dealers, from £14,699 to £24,990, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2021 Audi Q3 S Line, 1.5 petrol SUV, white. Mileage: 38,209 miles. Price: £20,998, £471 less than this car. Dealer: Arnold Clark Stirling Vauxhall in Stirling. AskCar page: https://askcar.co.uk/car/audi-q3-2021-0f13df428242
  • 2021 Audi Q3 S Line, 1.5 petrol SUV, blue. Mileage: 39,000 miles. Price: £19,990, £1,479 less than this car. Dealer: Sk Car Sales . Com in Enfield. AskCar page: https://askcar.co.uk/car/audi-q3-2021-daeea4d014b0
  • 2021 Audi Q3 S Line, 1.5 petrol SUV, black. Mileage: 39,040 miles. Price: £21,233, £236 less than this car. Dealer: Gbi Cars in Leighton Buzzard. AskCar page: https://askcar.co.uk/car/audi-q3-2021-626f699c5cb1
  • The nearest: 2021 Audi Q3 S Line, 1.5 petrol SUV, blue, 1 miles from this car. Mileage: 50,000 miles. Price: £19,995, £1,474 less than this car. Dealer: First Class Cars Bury St Edmunds in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/audi-q3-2021-cf13829902eb

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

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Photos

1 photo of this car is 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.