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: 99,572 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

With 99,572 miles on the clock, this 2021 Audi A3 S Line has done roughly 56,000 more miles than a typical 2021 Audi A3. The dealer is asking £11,600, which is £313 below the AskCar estimate of £11,913. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. The asking price is now £400 lower than when we first recorded the advert 24 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Quality Part X Dunstable, based in Dunstable. 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: £313 (2%) under the AskCar estimate of £11,913.

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 24 days.

Price history

AskCar first saw this advert on 9 October 2026 at £12,000. Its asking price is now £11,600, £400 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 9 October 2026: £12,000
• 10 October 2026: £12,001
• 14 October 2026: £11,900
• 16 October 2026: £11,850
• 20 October 2026: £11,751
• 22 October 2026: £11,700
• 24 October 2026: £11,681
• 27 October 2026: £11,651
• 29 October 2026: £11,646
• 31 October 2026: £11,600

Mileage and MOT

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

It failed its MOT on 26 February 2026 (offside rear shock absorbers has a serious fluid leak) and passed 5 days later, on 3 March 2026.

There were no advisories at the latest test.

Mileage at that test: 99,504 miles, which matches the advertised 99,572 miles.

Advertised mileage is about 56,000 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 £11,699 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, £1,100 more 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, grey. Mileage: 110,158 miles. Price: £11,699, £99 more than this car. Dealer: Automania Specialist Cars in West Bromwich. AskCar page: https://askcar.co.uk/car/audi-a3-2021-1e72a8dbddea
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue. Mileage: 111,314 miles. Price: £11,700, £100 more than this car. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2021-13ba22faa758

• The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey, 4 miles from this car. Mileage: 85,877 miles. Price: £13,990, £2,390 more than this car. Dealer: Dani Motors in Luton. AskCar page: https://askcar.co.uk/car/audi-a3-2021-f4831cec5e1f