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: 85,877 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: 29 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Audi A3 S Line has covered 85,877 miles, around 42,300 more miles than is typical for its age. The AskCar estimate for this car is £13,136. It is priced at £13,990, which is £854 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert for 16 days. The government's MOT record matches its advertised mileage. You can find this car at Dani Motors in Luton. 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: £854 (6%) over the AskCar estimate of £13,136.

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 16 days.

Price history

AskCar first saw this advert on 17 October 2026 at £13,990. 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 2 November 2026: valid until 20 August 2027.

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

Advisories at the latest test: offside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 84,399 miles, which matches the advertised 85,877 miles.

Advertised mileage is about 42,300 miles higher 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, blue. Mileage: 91,000 miles. Price: £12,700, £1,290 less than this car. Dealer: Browns Car Company in Maldon. AskCar page: https://askcar.co.uk/car/audi-a3-2021-907a9251543d
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, white. Mileage: 80,000 miles. Price: £14,250, £260 more than this car. Dealer: JCS Motor Company in Aldershot. AskCar page: https://askcar.co.uk/car/audi-a3-2021-bd0e63088481
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey. Mileage: 77,000 miles. Price: £14,394, £404 more than this car. Dealer: Parkway Commercials in Feltham. AskCar page: https://askcar.co.uk/car/audi-a3-2021-98944c3d942f

• The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, white, 4 miles from this car. Mileage: 99,572 miles. Price: £11,600, £2,390 less than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/audi-a3-2021-05918e73ba53