2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2023
• Mileage: 43,410 miles
• Fuel: Petrol, mild hybrid
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 43,410 miles, this 2023 Audi A3 S Line has covered about 16,400 more miles than other 2023 Audi A3 cars. Priced at £20,498, it is advertised £1,078 above the AskCar estimate of £19,420. 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 58 days ago. Its asking price has since fallen by £500. We checked its advertised mileage against the government's MOT record, and they match. The seller is Arnold Clark Ayr BYD, based in AYR. 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: £1,078 (5%) over the AskCar estimate of £19,420.

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 58 days.

Price history

AskCar first saw this advert on 5 September 2026 at £20,998. Its asking price is now £20,498, £500 less. The latest price cut was seen on 11 September 2026.

Price changes recorded:

• 5 September 2026: £20,998
• 11 September 2026: £20,498

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 30 July 2027.

It has had one MOT, on 13 July 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 42,119 miles, which matches the advertised 43,410 miles.

Advertised mileage is about 16,400 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

128 other 2023 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £16,195 to £24,670, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 43,682 miles. Price: £19,010, £1,488 less than this car. Dealer: Big Motoring World Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-cffdf8b9b3e7
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 44,006 miles. Price: £18,395, £2,103 less than this car. Dealer: Motor Range Liverpool in Liverpool. AskCar page: https://askcar.co.uk/car/audi-a3-2023-6a9a24418027
• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 42,039 miles. Price: £18,490, £2,008 less than this car. Dealer: Big Motoring World Blue Bell Hill in Blue Bell Hill. AskCar page: https://askcar.co.uk/car/audi-a3-2023-8cf5151cb3a1

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, under a mile from this car. Mileage: 23,875 miles. Price: £21,998, £1,500 more than this car. Dealer: Arnold Clark Ayr BYD in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2023-45c283f16d5c