2021 Audi A3 1.5 TFSI Sport

Overview

• Make: Audi
• Model: A3
• Trim: Sport
• Version: 1.5 TFSI 35 Sport S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2021
• Mileage: 31,000 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 130 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 31,000 miles on the clock, this 2021 Audi A3 Sport has done roughly 12,600 fewer miles than a typical 2021 Audi A3. Its asking price of £17,695 is £242 below the AskCar estimate of £17,937. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 33 days ago, the asking price has dropped by £300. Its advertised mileage matches the government's MOT record. The seller is Group 1 Automotive Audi Harold Wood, based in Romford. 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: £242 (1%) under the AskCar estimate of £17,937.

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 6,542 priced Audi A3 adverts across different ages and specifications, as of 2 November 2026.

A 2021 Audi A3 with the 1.5 petrol engine is typically advertised at £18,000: the median of the 191 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 Audi A3 has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 30 September 2026 at £17,995. Its asking price is now £17,695, £300 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 30 September 2026: £17,995
• 5 October 2026: £17,795
• 10 October 2026: £17,995
• 14 October 2026: £17,850
• 20 October 2026: £17,825
• 26 October 2026: £17,695

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 23 March 2027.

It has had 3 MOTs. The latest, on 18 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 27,121 miles, which matches the advertised 31,000 miles.

Advertised mileage is about 12,600 miles lower than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

7 other 2021 Audi A3 Sport 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £12,750 to £18,738, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 Sport, 1.5 petrol hatchback, red. Mileage: 34,458 miles. Price: £16,892, £803 less than this car. Dealer: Stellantis &You Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-2021-6ac8489b2348
• 2021 Audi A3 Sport, 1.5 petrol hatchback, silver. Mileage: 23,681 miles. Price: £18,485, £790 more than this car. Dealer: SERE Motors Belfast in Belfast. AskCar page: https://askcar.co.uk/car/audi-a3-2021-862bfebc41c7
• 2021 Audi A3 Sport, 1.5 petrol hatchback, blue. Mileage: 23,219 miles. Price: £18,738, £1,043 more than this car. Dealer: Days HaverfordWest in Haverfordwest. AskCar page: https://askcar.co.uk/car/audi-a3-2021-4e5c78c4d9f6