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: 6,666 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 6,666 miles, approximately 20,300 below the typical mileage for its age. Priced at £24,250, it is advertised £193 above the AskCar estimate of £24,057. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 30 days ago. Its asking price has since fallen by £645. The seller is Group 1 Automotive Watford Audi, based in Watford. 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: £193 (under 1%) over the AskCar estimate of £24,057.

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 30 days.

Price history

AskCar first saw this advert on 3 October 2026 at £24,895. Its asking price is now £24,250, £645 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 3 October 2026: £24,895
• 20 October 2026: £24,695
• 26 October 2026: £24,250

Mileage and MOT

Advertised mileage is about 20,300 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 £24,499, 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, £552 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, white. Mileage: 4,503 miles. Price: £24,499, £249 more than this car. Dealer: Stratstone Amersham Audi in Amersham. AskCar page: https://askcar.co.uk/car/audi-a3-2023-0c39f78d471f
• 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 10,185 miles. Price: £22,815, £1,435 less than this car. Dealer: Vertu BYD Macclesfield in Macclesfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-6699c2ffa5ea

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, grey, 7 miles from this car. Mileage: 41,330 miles. Price: £19,818, £4,432 less than this car. Dealer: Trust Ford Edgware in Edgware. AskCar page: https://askcar.co.uk/car/audi-a3-2023-655a6421b0e3