2021 Audi A3 1.4 TFSIe S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.4 13kWh TFSIe 40 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (201 bhp)
• Year: 2021
• Mileage: 39,708 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: White
• CO2: 29 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 39,708 miles, this 2021 Audi A3 S Line has covered about 2,700 fewer miles than other 2021 Audi A3 cars. Priced at £16,250, it is advertised £1,158 below the AskCar estimate of £17,408. To work out the AskCar estimate, we analyse UK dealer adverts for 6,729 Audi A3 cars across different ages and specifications. It first appeared in our advert records today. We checked its advertised mileage against the government's MOT record, and they match. The seller is Nuneaton Car Sales, based in Nuneaton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,158 (6%) under the AskCar estimate of £17,408.

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 6,729 priced Audi A3 adverts across different ages and specifications, as of 6 November 2026.

A 2021 Audi A3 with the 1.4 plug-in hybrid engine is typically advertised at £16,000: the median of the 82 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2021 Audi A3 advertised today. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 433 of the 772 first advertised between 7 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £16,250. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 8 March 2027.

It has had 5 MOTs. The latest, on 22 July 2026, failed.

It failed on: engine MIL inoperative or indicates a malfunction; supplementary restraint system warning lamp indicates a fault; nearside rear road wheel fixing missing.

Advisories at the latest test: offside front suspension arm pin or bush worn but not resulting in excessive movement rear bush.

Mileage at that test: 39,643 miles, which matches the advertised 39,708 miles.

Advertised mileage is about 2,700 miles lower than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

45 other 2021 Audi A3 S Line 1.4 plug-in hybrid automatic hatchbacks are for sale at UK dealers, from £11,400 to £21,995, as of 6 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, £747 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, £700 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, £1,000 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, 6 miles from this car. Mileage: 61,000 miles. Price: £15,880, £370 less than this car. Dealer: Motonet.com in Coventry. AskCar page: https://askcar.co.uk/car/audi-a3-2021-518ce2579fe8