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: 4,503 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: White
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 4,503 miles, approximately 22,500 below the typical mileage for its age. The dealer is asking £24,499, which is £42 above the AskCar estimate of £24,457. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 74 days, and its asking price is down £1,351. We checked its advertised mileage against the government's MOT record, and they match. The seller is Stratstone Amersham Audi, based in Amersham. 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: £42 (under 1%) over the AskCar estimate of £24,457.

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

The dealer may accept less. This 2023 Audi A3 has been on sale for at least 74 days, and its asking price has been cut by £1,351. About half of 2023 Audi A3 cars are gone from sale within a month of being advertised: 963 of the 1,886 first advertised between 8 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 20 August 2026 at £25,850. Its asking price is now £24,499, £1,351 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 20 August 2026: £25,850
• 7 October 2026: £24,799
• 22 October 2026: £24,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 3 September 2027.

It has had one MOT, on 10 August 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 4,252 miles, which matches the advertised 4,503 miles.

Advertised mileage is about 22,500 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 £24,250, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 6,329 miles. Price: £23,698, £801 less than this car. Dealer: Lookers Audi Teesside in Teesside. AskCar page: https://askcar.co.uk/car/audi-a3-2023-5e3152d68648
• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 6,666 miles. Price: £24,250, £249 less than this car. Dealer: Group 1 Automotive Watford Audi in Watford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ac94a8a56d11
• 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 10,185 miles. Price: £22,815, £1,684 less than this car. Dealer: Vertu BYD Macclesfield in Macclesfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-6699c2ffa5ea