2021 Audi A3 1.5 TFSI

Overview

• Make: Audi
• Model: A3
• Version: 1.5 35 TFSI S tronic FWD Euro 6 4dr (148 bhp)
• Year: 2021
• Mileage: 42,000 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 133 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 has covered 42,000 miles. Priced at £20,495, it is advertised £314 below the AskCar estimate of £20,809. The AskCar estimate uses 6,630 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 58 days ago. Its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at SKS Cars in Milton Keynes. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £314 (1%) under the AskCar estimate of £20,809.

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 6,630 priced Audi A3 adverts across different ages and specifications, as of 4 November 2026.

A 2021 Audi A3 with the 1.5 petrol engine is typically advertised at £18,000: the median of the 194 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 Audi A3 has been on sale for at least 58 days.

Price history

AskCar first saw this advert on 7 September 2026 at £20,995. Its asking price is now £20,495, £500 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 7 September 2026: £20,995
• 4 November 2026: £20,495

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 5 MOTs. The latest, on 13 June 2026, passed.

Advisories at the latest test: offside front tyre obviously under inflated.

Mileage at that test: 41,482 miles, which matches the advertised 42,000 miles.

Advertised mileage is about 1,200 miles lower than the median mileage of a 2021 Audi A3 on AskCar.