2025 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2025
• Mileage: 18,106 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: White
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 18,106 miles, this 2025 Audi A3 S Line has covered about 9,600 more miles than other 2025 Audi A3 cars. The dealer is asking £25,690, which is £560 above the AskCar estimate of £25,130. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. Since we first spotted the advert 34 days ago, the asking price has dropped by £100. The seller is Stratstone Milton Keynes Audi, based in Milton Keynes. 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: £560 (2%) over the AskCar estimate of £25,130.

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 34 days.

Price history

AskCar first saw this advert on 29 September 2026 at £25,790. Its asking price is now £25,690, £100 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 29 September 2026: £25,790
• 21 October 2026: £25,690

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 9,600 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, grey. Mileage: 18,314 miles. Price: £25,250, £440 less than this car. Dealer: Group 1 Automotive Tetbury Audi in Tetbury. AskCar page: https://askcar.co.uk/car/audi-a3-2025-6d531d9465a4
• 2025 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 17,162 miles. Price: £25,039, £651 less than this car. Dealer: JCT600 Volkswagen York in York. AskCar page: https://askcar.co.uk/car/audi-a3-2025-dcd66d76a662
• 2025 Audi A3 S Line, 1.5 petrol hatchback, yellow. Mileage: 19,650 miles. Price: £24,803, £887 less than this car. Dealer: JCT600 Hull Audi in Hessle. AskCar page: https://askcar.co.uk/car/audi-a3-2025-37fc2354f273

• The nearest: 2025 Audi A3 S Line, 1.5 petrol hatchback, black, under a mile from this car. Mileage: 11,794 miles. Price: £26,190, £500 more than this car. Dealer: Stratstone Milton Keynes Audi in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a3-2025-2a315741a16d