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: 18,314 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: Grey
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2025 Audi A3 S Line is advertised with 18,314 miles, approximately 9,900 above the typical mileage for its age. Priced at £25,250, it is advertised £75 above the AskCar estimate of £25,175. 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 recorded this advert 41 days ago, and its asking price has since fallen by £700. The seller is Group 1 Automotive Tetbury Audi, based in Tetbury. 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: £75 (under 1%) over the AskCar estimate of £25,175.

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 41 days.

Price history

AskCar first saw this advert on 22 September 2026 at £25,950. Its asking price is now £25,250, £700 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 22 September 2026: £25,950
• 16 October 2026: £25,895
• 18 October 2026: £25,795
• 25 October 2026: £25,495
• 29 October 2026: £25,250

Mileage and MOT

MOT: first test not yet due.

Advertised mileage is about 9,900 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, white. Mileage: 18,106 miles. Price: £25,690, £440 more than this car. Dealer: Stratstone Milton Keynes Audi in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a3-2025-9de2c353af6d
• 2025 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 17,162 miles. Price: £25,039, £211 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, £447 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, blue, 16 miles from this car. Mileage: 3,500 miles. Price: £27,995, £2,745 more than this car. Dealer: Heritage Audi Audi Swindon in Swindon. AskCar page: https://askcar.co.uk/car/audi-a3-2025-d0dc1acb0425