2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2023
• Mileage: 29,703 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 133 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 29,703 miles on the clock, this 2023 Audi A3 S Line has done roughly 2,700 more miles than a typical 2023 Audi A3. Its asking price of £18,680 is £834 below the AskCar estimate of £19,514. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. Since we first spotted the advert 55 days ago, the asking price has dropped by £310. Its advertised mileage matches the government's MOT record. The seller is D. M. Keith, based in Doncaster. 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: £834 (4%) under the AskCar estimate of £19,514.

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 55 days.

Price history

AskCar first saw this advert on 8 September 2026 at £18,990. Its asking price is now £18,680, £310 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 8 September 2026: £18,990
• 7 October 2026: £19,214
• 8 October 2026: £19,209
• 9 October 2026: £19,195
• 11 October 2026: £19,184
• 12 October 2026: £18,995
• 24 October 2026: £18,890
• 1 November 2026: £18,680

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 27 June 2027.

It failed its MOT on 22 June 2026 (nearside front tyre tread depth below requirements of 1.6mm; nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed later the same day.

Advisories at the latest test: rear registration plate deteriorated but not likely to be misread.

Mileage at that test: 27,656 miles, which matches the advertised 29,703 miles.

Advertised mileage is about 2,700 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

20 other 2023 Audi A3 S Line 1.5 petrol manual saloons are for sale at UK dealers, from £15,295 to £22,991, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 30,952 miles. Price: £19,998, £1,318 more than this car. Dealer: Arnold Clark Northwich Vauxhall / Kia in Northwich. AskCar page: https://askcar.co.uk/car/audi-a3-2023-6e94268d3d75
• 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 28,114 miles. Price: £20,591, £1,911 more than this car. Dealer: Lookers Audi Newcastle in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/audi-a3-2023-f604646bb2ce
• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 31,996 miles. Price: £17,600, £1,080 less than this car. Dealer: Arval UK in Swindon. AskCar page: https://askcar.co.uk/car/audi-a3-2023-9d1546f3fc6e