2021 Audi A3 1.4 TFSIe S Line

Price: £19,499. Fair price: £1,192 (6%) over the AskCar estimate of £18,307, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,542 priced Audi A3 adverts on AskCar as of 2 November 2026.

AskCar lists 6,720 used Audi A3 from 2,302 UK dealerships, as of 2 November 2026.

Overview

  • Make: Audi
  • Model: A3
  • Trim: S Line
  • Version: 1.4 40 TFSI e S Line S tronic FWD Euro 6 5dr (201 bhp)
  • Year: 2021
  • Mileage: 28,832 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: 26 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 28,832 miles, this 2021 Audi A3 S Line has covered about 14,800 fewer miles than other 2021 Audi A3 cars. The AskCar estimate for this car is £18,307. It is priced at £19,499, which is £1,192 above that estimate. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 2 days ago. The government's MOT record matches its advertised mileage. You can find this car at Hawco Group in Aberdeen. 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: £1,192 (6%) over the AskCar estimate of £18,307.

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

AskCar first saw this 2021 Audi A3 advertised 2 days ago. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 403 of the 709 first advertised between 7 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 31 October 2026 at £19,499. 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 29 October 2027.

It has had 4 MOTs. The latest, on 27 October 2026, passed.

Advisories at the latest test: nearside front inner brake disc worn, pitted or scored, but not seriously weakened; offside front inner brake disc worn, pitted or scored, but not seriously weakened; nearside front tyre worn close to legal limit/worn on edge; and 1 more.

Mileage at that test: 28,818 miles, which matches the advertised 28,832 miles.

Advertised mileage is about 14,800 miles lower 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, grey. Mileage: 27,471 miles. Price: £18,195, £1,304 less than this car. Dealer: Motor Range Liverpool in Liverpool. AskCar page: https://askcar.co.uk/car/audi-a3-2021-05a4f7e60e48
  • 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black. Mileage: 30,252 miles. Price: £18,290, £1,209 less than this car. Dealer: Sinclair Audi Approved Neyland in Neyland. AskCar page: https://askcar.co.uk/car/audi-a3-2021-d9bd29995a53
  • 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue. Mileage: 31,877 miles. Price: £17,999, £1,500 less than this car. Dealer: Lookers Audi Ayr in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2021-e5569474843e
  • The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue, 89 miles from this car. Mileage: 50,117 miles. Price: £16,998, £2,501 less than this car. Dealer: Arnold Clark Edinburgh Seafield MG / OMODA / JAECOO in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a3-2021-df9cf06b8b09

Browse all Audi A3 cars for sale · 2021 Audi A3 price guide

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Photos

1 photo of this car is on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.