2021 Audi A3 1.4 TFSIe S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.4 40 TFSI e S Line S tronic FWD Euro 6 5dr (201 bhp)
• Year: 2021
• Mileage: 39,628 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.4 litres, 201 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 26 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line is advertised with 39,628 miles, approximately 4,000 below the typical mileage for its age. Priced at £16,799, it is advertised £498 below the AskCar estimate of £17,297. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. The dealer may accept less: this car has been on sale for at least 88 days, and its asking price has been cut by £200. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by cinch Corby in North Northamptonshire. 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: £498 (2%) under the AskCar estimate of £17,297.

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 1.4 plug-in hybrid engine is typically advertised at £15,900: the median of the 77 for sale on AskCar, as of 2 November 2026.

Time on sale

The dealer may accept less. This 2021 Audi A3 has been on sale for at least 88 days, and its asking price has been cut by £200. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 403 of the 709 first advertised between 7 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 6 August 2026 at £16,999. Its asking price is now £16,799, £200 less. The latest price cut was seen on 25 October 2026.

Price changes recorded:

• 6 August 2026: £16,999
• 14 August 2026: £17,168
• 29 August 2026: £17,167
• 11 September 2026: £17,199
• 26 September 2026: £16,999
• 29 September 2026: £16,899
• 25 October 2026: £16,799

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 31 July 2027.

It has had 4 MOTs. The latest, on 1 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 39,622 miles, which matches the advertised 39,628 miles.

Advertised mileage is about 4,000 miles lower than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

41 other 2021 Audi A3 S Line 1.4 plug-in hybrid automatic hatchbacks are for sale at UK dealers, from £11,600 to £20,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black. Mileage: 40,093 miles. Price: £16,997, £198 more than this car. Dealer: Bell Truck and Van. AskCar page: https://askcar.co.uk/car/audi-a3-2021-524c7420a31b
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey. Mileage: 38,151 miles. Price: £16,950, £151 more than this car. Dealer: Danson Motors in Sidcup. AskCar page: https://askcar.co.uk/car/audi-a3-2021-51b80b2fa607
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey. Mileage: 38,000 miles. Price: £17,250, £451 more than this car. Dealer: David Hayton Autostore Penrith in Penrith. AskCar page: https://askcar.co.uk/car/audi-a3-2021-7652e5b39ab7

• The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey, under a mile from this car. Mileage: 25,314 miles. Price: £17,499, £700 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-cc91a8c644fd