2025 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: 2025
• Mileage: 15,746 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: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 Audi A3 S Line is advertised with 15,746 miles, approximately 7,300 above the typical mileage for its age. Priced at £25,990, it is advertised £534 above the AskCar estimate of £25,456. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 33 days ago. Its asking price has since fallen by £1,730. It is for sale at Harwoods Southampton Audi in Chandlers Ford. 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: £534 (2%) over the AskCar estimate of £25,456.

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 2025 Audi A3 with the 1.5 petrol engine is typically advertised at £26,800: the median of the 472 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2025 Audi A3 has been on sale for at least 33 days.

Price history

AskCar first saw this advert on 30 September 2026 at £27,720. Its asking price is now £25,990, £1,730 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 30 September 2026: £27,720
• 3 October 2026: £28,990
• 20 October 2026: £28,940
• 22 October 2026: £26,890
• 23 October 2026: £26,990
• 27 October 2026: £25,990

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 7,300 miles higher than the median mileage of a 2025 Audi A3 on AskCar.

Similar cars

104 other 2025 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £19,795 to £40,950, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2025 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 15,898 miles. Price: £25,390, £600 less than this car. Dealer: Stratstone Tamworth Audi in Tamworth. AskCar page: https://askcar.co.uk/car/audi-a3-2025-5b9f7b2b361a
• 2025 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 16,008 miles. Price: £25,790, £200 less than this car. Dealer: Stratstone Warrington Audi in Warrington. AskCar page: https://askcar.co.uk/car/audi-a3-2025-d77eb682bf3d
• 2025 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 15,423 miles. Price: £24,293, £1,697 less than this car. Dealer: Listers Audi Coventry in Coventry. AskCar page: https://askcar.co.uk/car/audi-a3-2025-920c366953a2

• The nearest: 2025 Audi A3 S Line, 1.5 petrol hatchback, green, under a mile from this car. Mileage: 1,353 miles. Price: £29,290, £3,300 more than this car. Dealer: Harwoods Southampton Audi in Southampton. AskCar page: https://askcar.co.uk/car/audi-a3-2025-6e09e83b61d2