2023 Audi A3 1.5 TFSI S Line

Price: £20,698. Fair price: £916 (4%) over the AskCar estimate of £19,782, 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 S tronic FWD Euro 6 (s/s) 4dr (148 bhp)
  • Year: 2023
  • Mileage: 44,765 miles
  • Fuel: Petrol, mild hybrid
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 1.5 litres, 148 bhp
  • Gearbox: Automatic (S tronic)
  • Drive: Front-wheel drive
  • Colour: Blue
  • CO2: 131 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 44,765 miles on the clock, this 2023 Audi A3 S Line has done roughly 17,800 more miles than a typical 2023 Audi A3. The AskCar estimate for this car is £19,782. It is priced at £20,698, which is £916 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 32 days ago. Its asking price has since fallen by £300. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Manchester Vauxhall, based in Manchester. 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: £916 (4%) over the AskCar estimate of £19,782.

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 32 days.

Price history

AskCar first saw this advert on 1 October 2026 at £20,998. Its asking price is now £20,698, £300 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

  • 1 October 2026: £20,998
  • 21 October 2026: £20,698

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 19 September 2027.

It has had one MOT, on 17 September 2026, and passed.

Advisories at the latest test: nearside front tyre slightly damaged; nearside rear tyre slightly damaged; offside rear tyre slightly damaged.

Mileage at that test: 44,616 miles, which matches the advertised 44,765 miles.

Advertised mileage is about 17,800 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

41 other 2023 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £16,290 to £24,499, as of 2 November 2026.

The 3 closest to this car in mileage:

  • 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 42,123 miles. Price: £19,995, £703 less than this car. Dealer: Cameron Motor Group Perth Audi in Perth. AskCar page: https://askcar.co.uk/car/audi-a3-2023-52afe6210c10
  • 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 41,330 miles. Price: £19,818, £880 less than this car. Dealer: Trust Ford Edgware in Edgware. AskCar page: https://askcar.co.uk/car/audi-a3-2023-655a6421b0e3
  • 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 49,444 miles. Price: £18,490, £2,208 less than this car. Dealer: Motor Gurus in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e576df30f680
  • The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, black, 2 miles from this car. Mileage: 13,536 miles. Price: £23,498, £2,800 more than this car. Dealer: Arnold Clark Salford Vauxhall / Fiat / Abarth / MG / Jeep in Salford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a673033305f1

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

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Photos

20 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.