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: 20,704 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: Black
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 20,704 miles, this 2023 Audi A3 S Line has covered about 6,300 fewer miles than other 2023 Audi A3 cars. The dealer is asking £21,295, which is £429 below the AskCar estimate of £21,724. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. The asking price is now £200 lower than when we first recorded the advert 48 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Witham Garage in Melton Mowbray. 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: £429 (1%) under the AskCar estimate of £21,724.

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 48 days.

Price history

AskCar first saw this advert on 15 September 2026 at £21,495. Its asking price is now £21,295, £200 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 15 September 2026: £21,495
• 17 October 2026: £21,295

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 March 2027.

It has had one MOT, on 23 March 2026, and passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge; offside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 18,886 miles, which matches the advertised 20,704 miles.

Advertised mileage is about 6,300 miles lower 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, grey. Mileage: 21,179 miles. Price: £20,795, £500 less than this car. Dealer: Witham Garage in Melton Mowbray. AskCar page: https://askcar.co.uk/car/audi-a3-2023-25e94a91a42c
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 20,212 miles. Price: £19,999, £1,296 less than this car. Dealer: HPL Wirral in Bromborough. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3b8e9da15022
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 21,500 miles. Price: £21,300, the same price as this car. Dealer: Stratstone Amersham Audi in Amersham. AskCar page: https://askcar.co.uk/car/audi-a3-2023-c69fdc066d06

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, under a mile from this car. Mileage: 25,604 miles. Price: £20,495, £800 less than this car. Dealer: Witham Garage in Melton Mowbray. AskCar page: https://askcar.co.uk/car/audi-a3-2023-0a71b05d2e29