2023 Audi A3 1.5 TFSI S Line

Price: £19,799. Fair price: £79 (under 1%) under the AskCar estimate of £19,878, 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: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
  • Year: 2023
  • Mileage: 20,641 miles
  • Fuel: Petrol
  • Body: Hatchback, 5 doors, 5 seats
  • Engine: 1.5 litres, 148 bhp
  • Gearbox: Manual
  • Drive: Front-wheel drive
  • Colour: Black
  • CO2: 136 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 20,641 miles on the clock, this 2023 Audi A3 S Line has done roughly 6,400 fewer miles than a typical 2023 Audi A3. The AskCar estimate for this car is £19,878. It is priced at £19,799, which is £79 below 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. We first recorded this advert 23 days ago, and its asking price has since fallen by £700. The government's MOT record matches its advertised mileage. You can find this car at cinch in Wimbledon. 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: £79 (under 1%) under the AskCar estimate of £19,878.

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 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,600: the median of the 493 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 Audi A3 has been on sale for at least 23 days.

Price history

AskCar first saw this advert on 10 October 2026 at £20,499. Its asking price is now £19,799, £700 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

  • 10 October 2026: £20,499
  • 15 October 2026: £20,299
  • 23 October 2026: £20,199
  • 28 October 2026: £19,999
  • 31 October 2026: £19,799

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 9 May 2027.

It has had one MOT, on 27 April 2026, and passed.

Advisories at the latest test: front tyre worn close to legal limit/worn on edge both sides.

Mileage at that test: 18,101 miles, which matches the advertised 20,641 miles.

Advertised mileage is about 6,400 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

79 other 2023 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £13,995 to £22,498, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 20,401 miles. Price: £20,998, £1,199 more than this car. Dealer: Arnold Clark Derby Motorstore in Derby. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ea18545510d1
  • 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 20,209 miles. Price: £19,420, £379 less than this car. Dealer: Hippo Approved in Blackburn. AskCar page: https://askcar.co.uk/car/audi-a3-2023-72af4811bc45
  • 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 21,169 miles. Price: £20,500, £701 more than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/audi-a3-2023-2788c5fc8eaf
  • The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, white, 6 miles from this car. Mileage: 41,500 miles. Price: £18,750, £1,049 less than this car. Dealer: Drift Bridge Audi Approved - Epsom in Epsom. AskCar page: https://askcar.co.uk/car/audi-a3-2023-05aac58992e5

Browse all Audi A3 cars for sale · 2023 Audi A3 price guide

More like this

Photos

38 photos of this car are 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.