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: 24,193 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

At 24,193 miles, this 2021 Audi A3 S Line has covered about 19,400 fewer miles than other 2021 Audi A3 cars. The AskCar estimate for this car is £18,677. It is priced at £18,451, which is £226 below that estimate. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 11 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Vertu Vauxhall Chesterfield, based in Chesterfield. 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: £226 (1%) under the AskCar estimate of £18,677.

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

This 2021 Audi A3 has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 22 October 2026 at £17,903. Its asking price is now £18,451, £548 more.

Price changes recorded:

• 22 October 2026: £17,903
• 23 October 2026: £18,451

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 20 September 2027.

It has had 4 MOTs. The latest, on 21 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 24,212 miles, which matches the advertised 24,193 miles.

Advertised mileage is about 19,400 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, grey. Mileage: 25,314 miles. Price: £17,499, £952 less than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-cc91a8c644fd
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black. Mileage: 22,863 miles. Price: £18,998, £547 more than this car. Dealer: Arnold Clark Hillington Renault / Dacia / Alpine / Vanstore in Hillington. AskCar page: https://askcar.co.uk/car/audi-a3-2021-a1373be6b2f0
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue. Mileage: 21,341 miles. Price: £17,842, £609 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, 20 miles from this car. Mileage: 47,612 miles. Price: £15,198, £3,253 less than this car. Dealer: BTS Cars in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-04d100abc3c3