2021 Audi A3 1.4 TFSIe S Line

Price: £17,998. Fair price: £1,063 (6%) over the AskCar estimate of £16,935, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,645 priced Audi A3 adverts on AskCar as of 5 November 2026.

AskCar lists 6,826 used Audi A3 from 2,317 UK dealerships, as of 5 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: 44,416 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

This 2021 Audi A3 S Line has covered 44,416 miles. Priced at £17,998, it is advertised £1,063 above the AskCar estimate of £16,935. The AskCar estimate draws on 6,645 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Liverpool Motorstore / MG / Chery, based in Liverpool. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,063 (6%) over the AskCar estimate of £16,935.

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 6,645 priced Audi A3 adverts across different ages and specifications, as of 5 November 2026.

A 2021 Audi A3 with the 1.4 plug-in hybrid engine is typically advertised at £16,000: the median of the 80 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2021 Audi A3 advertised today. About 6 in 10 of 2021 Audi A3 cars are gone from sale within a month of being advertised: 426 of the 756 first advertised between 7 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £17,998. 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 5 November 2026: valid until 21 October 2027.

It has had 3 MOTs. The latest, on 22 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 44,250 miles, which matches the advertised 44,416 miles.

Advertised mileage is about 1,800 miles higher than the median mileage of a 2021 Audi A3 on AskCar.

Similar cars

43 other 2021 Audi A3 S Line 1.4 plug-in hybrid automatic hatchbacks are for sale at UK dealers, from £11,581 to £21,995, as of 5 November 2026.

The 3 closest to this car in mileage:

  • 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue. Mileage: 44,209 miles. Price: £16,995, £1,003 less than this car. Dealer: NEO Motor Company in Warrington. AskCar page: https://askcar.co.uk/car/audi-a3-2021-07f3c2be3e11
  • 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, black. Mileage: 43,527 miles. Price: £18,995, £997 more than this car. Dealer: A&H Autos in Ipswich. AskCar page: https://askcar.co.uk/car/audi-a3-2021-63a137b860f6
  • 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, blue. Mileage: 45,381 miles. Price: £16,699, £1,299 less than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/audi-a3-2021-ebdbd39f3ddb
  • The nearest: 2021 Audi A3 S Line, 1.4 plug-in hybrid hatchback, grey, 7 miles from this car. Mileage: 27,471 miles. Price: £18,195, £197 more than this car. Dealer: Motor Range Liverpool in Liverpool. AskCar page: https://askcar.co.uk/car/audi-a3-2021-05a4f7e60e48

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

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Photos

20 photos of this car are on its AskCar page.

As of 5 November 2026, AskCar lists 595,776 cars and vans from 12,945 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.