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: 18,021 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: Grey
• CO2: 26 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 18,021 miles on the clock, this 2021 Audi A3 S Line has done roughly 25,600 fewer miles than a typical 2021 Audi A3. The dealer is asking £18,500, which is £682 below the AskCar estimate of £19,182. 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 105 days, and its asking price has been cut by £800. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Turners Of Roborough, based in Plymouth. 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: £682 (3%) under the AskCar estimate of £19,182.

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 105 days, and its asking price has been cut by £800. 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 20 July 2026 at £19,300. Its asking price is now £18,500, £800 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 20 July 2026: £19,300
• 22 October 2026: £18,500

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 January 2027.

It has had 3 MOTs. The latest, on 12 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 16,711 miles, which matches the advertised 18,021 miles.

Advertised mileage is about 25,600 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, white. Mileage: 19,757 miles. Price: £17,750, £750 less than this car. Dealer: Hilton Car Supermarket Milton Keynes in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a3-2021-e2ffd8a67985
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, white. Mileage: 21,000 miles. Price: £20,990, £2,490 more than this car. Dealer: Car Sales in New Malden. AskCar page: https://askcar.co.uk/car/audi-a3-2021-8254f3fd95df
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue. Mileage: 21,341 miles. Price: £17,842, £658 less than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a3-2021-e48aecdc86db

• The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black, 96 miles from this car. Mileage: 30,252 miles. Price: £18,290, £210 less than this car. Dealer: Sinclair Audi Approved Neyland in Neyland. AskCar page: https://askcar.co.uk/car/audi-a3-2021-d9bd29995a53