2021 Audi Q3 1.5 TFSI S Line
Price: £16,888. Good value: £3,869 (18%) under the AskCar estimate of £20,757, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,488 priced Audi Q3 adverts on AskCar as of 4 November 2026.
AskCar lists 3,545 used Audi Q3 from 1,632 UK dealerships, as of 4 November 2026.
Overview
- Make: Audi
- Model: Q3
- Trim: S Line
- Version: 1.5 TFSI S Line Semi-Auto 5dr 35
- Year: 2021
- Mileage: 33,400 miles
- Fuel: Petrol
- Body: SUV, 5 doors
- Engine: 1.5 litres
- Gearbox: Semi-Automatic
- Colour: White
- CO2: 159 g/km
About this car
This 2021 Audi Q3 S Line has covered 33,400 miles, around 8,700 fewer miles than is typical for its age. The dealer is asking £16,888, which is £3,869 below the AskCar estimate of £20,757. To work out the AskCar estimate, we analyse UK dealer adverts for 3,488 Audi Q3 cars across different ages and specifications. We have tracked this advert for 36 days. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by UM Cars in Braintree. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 4 November 2026.
Price
Good value: £3,869 (18%) under the AskCar estimate of £20,757.
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 1.5 petrol engine is typically advertised at £20,000: the median of the 213 for sale on AskCar, as of 4 November 2026.
Time on sale
This 2021 Audi Q3 has been on sale for at least 36 days.
Price history
AskCar first saw this advert on 29 September 2026 at £16,888. 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 4 November 2026: valid until 12 June 2027.
It has had 4 MOTs. The latest, on 13 June 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 33,465 miles, which matches the advertised 33,400 miles.
Advertised mileage is about 8,700 miles lower than the median mileage of a 2021 Audi Q3 on AskCar.
Browse all Audi Q3 cars for sale · 2021 Audi Q3 price guide
More like this
- Used Audi Q3 S Line prices
- Used Audi Q3 for sale under £20,000
- Used petrol Audi Q3 for sale
- Used Audi Q3 for sale near Braintree
Photos
38 photos of this car are on its AskCar page.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.