2021 Audi A3 1.4 TFSIe S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.4 S Line S tronic FWD Euro 6 5dr
• Year: 2021
• Mileage: 47,365 miles
• Fuel: Plug-in hybrid (petrol)
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.4 litres
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 30 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 47,365 miles, this 2021 Audi A3 S Line has covered about 3,800 more miles than other 2021 Audi A3 cars. The dealer is asking £16,150, which is £1,400 below the AskCar estimate of £17,550. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first saw this car advertised 37 days ago. Its asking price has since fallen by £100. The government's MOT record matches its advertised mileage. It is advertised by John Banks Hyundai in Cambridge. 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: £1,400 (7%) under the AskCar estimate of £17,550.

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 37 days.

Price history

AskCar first saw this advert on 26 September 2026 at £16,250. Its asking price is now £16,150, £100 less. The latest price cut was seen on 18 October 2026.

Price changes recorded:

• 26 September 2026: £16,250
• 18 October 2026: £16,150

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 16 May 2027.

It has had 3 MOTs. The latest, on 6 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 44,254 miles, which matches the advertised 47,365 miles.

Advertised mileage is about 3,800 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, black. Mileage: 47,612 miles. Price: £15,198, £952 less than this car. Dealer: BTS Cars in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-04d100abc3c3
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, white. Mileage: 48,762 miles. Price: £16,099, £51 less than this car. Dealer: Motorpoint Burnley in Burnley. AskCar page: https://askcar.co.uk/car/audi-a3-2021-13560cc575c4
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey. Mileage: 49,167 miles. Price: £15,920, £230 less than this car. Dealer: Hippo Motor Group Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2021-ff9dbf454fa3

• The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue, 29 miles from this car. Mileage: 111,314 miles. Price: £11,700, £4,450 less than this car. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2021-13ba22faa758