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: 2,788 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

This 2023 Audi A3 S Line is advertised with 2,788 miles, approximately 24,200 below the typical mileage for its age. The dealer is asking £24,670, which is £715 above the AskCar estimate of £23,955. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. This car was first seen in our listings data 20 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Letchworth Renault & Dacia in Letchworth Garden City. 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: £715 (2%) over the AskCar estimate of £23,955.

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 20 days.

Price history

AskCar first saw this advert on 13 October 2026 at £24,670. 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 29 September 2027.

It has had one MOT, on 21 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 2,604 miles, which matches the advertised 2,788 miles.

Advertised mileage is about 24,200 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 £24,299, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 5,881 miles. Price: £24,299, £371 less than this car. Dealer: cinch in Coulsdon. AskCar page: https://askcar.co.uk/car/audi-a3-2023-5a5f495c3985
• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 6,985 miles. Price: £21,999, £2,671 less than this car. Dealer: Available Car Supermarket - Castle Donington in Castle Donington. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a2edf4f6bcbc
• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 8,413 miles. Price: £23,550, £1,120 less than this car. Dealer: Group 1 Automotive Finchley Road Audi in Camden. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e8302566b623

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, white, 14 miles from this car. Mileage: 35,885 miles. Price: £20,612, £4,058 less than this car. Dealer: Vindis Group Bedford Audi in Bedford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-7d38fea925bc