2021 Audi Q3 1.5 TFSI CoD S Line

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: 35,000 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 35,000 miles, around 7,000 fewer miles than is typical for its age. Its asking price of £17,999 is £2,996 below the AskCar estimate of £20,995. The AskCar estimate draws on 3,432 Audi Q3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 33 days ago, and its asking price has since fallen by £2,000. Its advertised mileage matches the government's MOT record. It is advertised by Phoenix Way Car Dealership in Egham. 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: £2,996 (14%) under the AskCar estimate of £20,995.

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 £19,999. Its asking price is now £17,999, £2,000 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 30 September 2026: £19,999
• 12 October 2026: £18,999
• 27 October 2026: £17,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 1 December 2026.

It failed its MOT on 24 November 2025 (front brake pad(s) less than 1.5 mm thick; front brake disc in such a condition that it is seriously weakened; offside rear anti-roll bar linkage fractured) and passed 8 days later, on 2 December 2025.

Advisories at the latest test: nearside front lower windscreen damaged but not adversely affecting driver's view.

Mileage at that test: 29,835 miles, which matches the advertised 35,000 miles.

Advertised mileage is about 7,000 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, grey. Mileage: 34,976 miles. Price: £20,799, £2,800 more than this car. Dealer: EMG Motor Group Thetford Kia in Thetford. AskCar page: https://askcar.co.uk/car/audi-q3-2021-9d35854857d2
• 2021 Audi Q3 S Line, 1.5 petrol SUV, grey. Mileage: 37,878 miles. Price: £21,469, £3,470 more than this car. Dealer: Marriott Motor Group Bury St Edmunds Audi in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/audi-q3-2021-d1611ba9d105
• 2021 Audi Q3 S Line, 1.5 petrol SUV, white. Mileage: 38,209 miles. Price: £20,998, £2,999 more than this car. Dealer: Arnold Clark Stirling Vauxhall in Stirling. AskCar page: https://askcar.co.uk/car/audi-q3-2021-0f13df428242

• The nearest: 2021 Audi Q3 S Line, 1.5 petrol SUV, grey, 17 miles from this car. Mileage: 42,260 miles. Price: £20,100, £2,101 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-q3-2021-58f59adb1247