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: 1,353 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: Green
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 1,353 miles on the clock, this 2025 Audi A3 S Line has done roughly 7,100 fewer miles than a typical 2025 Audi A3. The AskCar estimate for this car is £28,488. It is priced at £29,290, which is £802 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. It first appeared in our advert records 69 days ago. The seller is Harwoods Southampton Audi, based 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: £802 (2%) over the AskCar estimate of £28,488.

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 69 days.

Price history

AskCar first saw this advert on 25 August 2026 at £28,500. Its asking price is now £29,290, £790 more.

Price changes recorded:

• 25 August 2026: £28,500
• 26 August 2026: £29,290

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 7,100 miles lower 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, white. Mileage: 1,569 miles. Price: £27,891, £1,399 less than this car. Dealer: Lookers Audi Newcastle in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/audi-a3-2025-bbb0c9384d55
• 2025 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 1,948 miles. Price: £28,803, £487 less than this car. Dealer: JCT600 Doncaster Audi in Doncaster. AskCar page: https://askcar.co.uk/car/audi-a3-2025-54cf1c013770
• 2025 Audi A3 S Line, 1.5 petrol hatchback, green. Mileage: 2,025 miles. Price: £25,995, £3,295 less than this car. Dealer: TrustFord Glasgow in Glasgow. AskCar page: https://askcar.co.uk/car/audi-a3-2025-08db1ec29727

• The nearest: 2025 Audi A3 S Line, 1.5 petrol hatchback, black, under a mile from this car. Mileage: 15,746 miles. Price: £25,990, £3,300 less than this car. Dealer: Harwoods Southampton Audi in Southampton. AskCar page: https://askcar.co.uk/car/audi-a3-2025-d1be4e271ec8