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) 4dr (148 bhp)
• Year: 2023
• Mileage: 16,535 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 16,535 miles, approximately 10,500 below the typical mileage for its age. Priced at £22,995, it is advertised £696 above the AskCar estimate of £22,299. The AskCar estimate uses UK dealer asking prices, including 6,763 Audi A3 adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records today. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Group 1 Automotive Audi Harold Wood in Romford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 14 November 2026.

How we estimate prices and check cars

Price

Fair price: £696 (3%) over the AskCar estimate of £22,299.

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 6,763 priced Audi A3 adverts across different ages and specifications, as of 14 November 2026.

A 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,500: the median of the 514 for sale on AskCar, as of 14 November 2026.

Time on sale

AskCar first saw this 2023 Audi A3 advertised today. About half of 2023 Audi A3 cars are gone from sale within a month of being advertised: 1,114 of the 2,238 first advertised between 14 July 2026 and 11 October 2026.

Price history

AskCar first saw this advert on 14 November 2026 at £22,995. 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 14 November 2026: valid until 30 January 2027.

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

There were no advisories at the latest test.

Mileage at that test: 13,150 miles, which matches the advertised 16,535 miles.

Advertised mileage is about 10,500 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

41 other 2023 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £16,290 to £24,550, as of 14 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, white. Mileage: 15,991 miles. Price: £21,482, £1,513 less than this car. Dealer: JCT600 Volkswagen Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ee0a854184b6
• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 17,287 miles. Price: £21,490, £1,505 less than this car. Dealer: Group 1 Automotive Lowestoft Audi in Lowestoft. AskCar page: https://askcar.co.uk/car/audi-a3-2023-4e601761ea87
• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 17,341 miles. Price: £21,500, £1,495 less than this car. Dealer: Reverie Autos in Hatfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-f34751288f0f

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, blue, 19 miles from this car. Mileage: 32,657 miles. Price: £20,499, £2,496 less than this car. Dealer: cinch in London. AskCar page: https://askcar.co.uk/car/audi-a3-2023-6546ec0d45a7