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: 49,167 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 49,167 miles, around 5,600 more miles than is typical for its age. Its asking price of £15,920 is £826 below the AskCar estimate of £16,746. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 17 days ago, and its asking price has since fallen by £1,035. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Hippo Motor Group Peterborough, based in Peterborough. 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: £826 (4%) under the AskCar estimate of £16,746.

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 17 days.

Price history

AskCar first saw this advert on 16 October 2026 at £16,955. Its asking price is now £15,920, £1,035 less. The latest price cut was seen on 24 October 2026.

Price changes recorded:

• 16 October 2026: £16,955
• 24 October 2026: £15,920

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 24 May 2027.

It failed its MOT on 27 April 2026 (nearside rear shock absorbers has a serious fluid leak) and passed 23 days later, on 20 May 2026.

Advisories at the latest test: offside front shock absorbers has light misting of oil.

Mileage at that test: 45,636 miles, which matches the advertised 49,167 miles.

Advertised mileage is about 5,600 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, white. Mileage: 48,762 miles. Price: £16,099, £179 more 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, blue. Mileage: 50,117 miles. Price: £16,998, £1,078 more than this car. Dealer: Arnold Clark Edinburgh Seafield MG / OMODA / JAECOO in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a3-2021-df9cf06b8b09
• 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black. Mileage: 47,612 miles. Price: £15,198, £722 less than this car. Dealer: BTS Cars in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2021-04d100abc3c3

• The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue, 4 miles from this car. Mileage: 111,314 miles. Price: £11,700, £4,220 less than this car. Dealer: Carworld Car Supermarket in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2021-13ba22faa758