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) 5dr Sportback (148 bhp)
• Year: 2023
• Mileage: 30,436 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: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line has covered 30,436 miles, around 3,400 more miles than is typical for its age. Its asking price of £20,130 is £690 below the AskCar estimate of £20,820. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 10 days ago, and its asking price has since fallen by £3,720. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Big Motoring World Peterborough, based in Peterborough. 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: £690 (3%) under the AskCar estimate of £20,820.

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 10 days.

Price history

AskCar first saw this advert on 23 October 2026 at £23,850. Its asking price is now £20,130, £3,720 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 23 October 2026: £23,850
• 24 October 2026: £20,650
• 27 October 2026: £20,200
• 31 October 2026: £20,130

Mileage and MOT

It has had one MOT, on 23 October 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 30,437 miles, which matches the advertised 30,436 miles.

Advertised mileage is about 3,400 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

128 other 2023 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £16,195 to £24,670, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 30,376 miles. Price: £22,995, £2,865 more than this car. Dealer: Auto Station in Elgin. AskCar page: https://askcar.co.uk/car/audi-a3-2023-9bd8bbfb9cf7
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 30,509 miles. Price: £22,990, £2,860 more than this car. Dealer: Marshall Motor Group Maidstone Audi in Maidstone. AskCar page: https://askcar.co.uk/car/audi-a3-2023-cd7c89c29d27
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 30,944 miles. Price: £21,000, £870 more than this car. Dealer: Sytner Group Huddersfield Audi in Huddersfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e11cdefd88cb

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, blue, under a mile from this car. Mileage: 31,725 miles. Price: £19,549, £581 less than this car. Dealer: Motorpoint Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/audi-a3-2023-0c03bcad1b22