2021 Audi Q3 1.5 TFSI CoD S Line

Price: £19,994. Fair price: £419 (2%) under the AskCar estimate of £20,413, 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: 40,335 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: 158 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi Q3 S Line has covered 40,335 miles. Its asking price of £19,994 is £419 below the AskCar estimate of £20,413. The AskCar estimate uses 3,432 UK dealer adverts for the Audi Q3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 37 days ago. Its asking price has since fallen by £997. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is West Riding Hyundai Bolton, based in Bolton. 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: £419 (2%) under the AskCar estimate of £20,413.

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 37 days.

Price history

AskCar first saw this advert on 26 September 2026 at £20,991. Its asking price is now £19,994, £997 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

  • 26 September 2026: £20,991
  • 16 October 2026: £20,492
  • 28 October 2026: £20,443
  • 30 October 2026: £19,994

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 November 2026.

It has had 3 MOTs. The latest, on 24 November 2025, passed.

Advisories at the latest test: rear brake pad(s) wearing thin; nearside rear tyre worn close to legal limit/worn on edge; both rear tyres cracking/perished.

Mileage at that test: 34,041 miles, which matches the advertised 40,335 miles.

Advertised mileage is about 1,700 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, red. Mileage: 40,117 miles. Price: £18,999, £995 less than this car. Dealer: H.P.L. Motors - Oldham (Greater Manchester) in Oldham. AskCar page: https://askcar.co.uk/car/audi-q3-2021-3df80cbc783a
  • 2021 Audi Q3 S Line, 1.5 petrol SUV, grey. Mileage: 40,999 miles. Price: £19,322, £672 less than this car. Dealer: HK Cars in Bolton. AskCar page: https://askcar.co.uk/car/audi-q3-2021-eb98a31cbc1d
  • 2021 Audi Q3 S Line, 1.5 petrol SUV, grey. Mileage: 41,075 miles. Price: £18,990, £1,004 less than this car. Dealer: Waylands Approved Petersfield in Petersfield. AskCar page: https://askcar.co.uk/car/audi-q3-2021-4df49676941d

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

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Photos

45 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.