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: 48,641 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: Grey
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 48,641 miles, this 2023 Audi A3 S Line has covered about 21,600 more miles than other 2023 Audi A3 cars. Its asking price of £19,481 is £599 above the AskCar estimate of £18,882. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 13 days. Its advertised mileage matches the government's MOT record. It is advertised by Sinclair Group in Bridgend. 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: £599 (3%) over the AskCar estimate of £18,882.

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 13 days.

Price history

AskCar first saw this advert on 20 October 2026 at £19,481. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 14 August 2027.

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

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

Mileage at that test: 44,956 miles, which matches the advertised 48,641 miles.

Advertised mileage is about 21,600 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, black. Mileage: 48,533 miles. Price: £19,295, £186 less than this car. Dealer: EMG Motor Group BYD Bury St Edmunds in Bury St Edmunds. AskCar page: https://askcar.co.uk/car/audi-a3-2023-46fb5f451947
• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 48,500 miles. Price: £17,995, £1,486 less than this car. Dealer: Motoplex in York. AskCar page: https://askcar.co.uk/car/audi-a3-2023-05825f7aad14
• 2023 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 47,252 miles. Price: £19,390, £91 less than this car. Dealer: Sinclair Audi Approved Neyland in Neyland. AskCar page: https://askcar.co.uk/car/audi-a3-2023-d15e9754adbb

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, 19 miles from this car. Mileage: 21,601 miles. Price: £21,000, £1,519 more than this car. Dealer: Mon Motors Cardiff Audi in Cardiff. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3ad168346aad