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) 4dr (148 bhp)
• Year: 2023
• Mileage: 27,861 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2023 Audi A3 S Line is 27,861 miles. Its asking price of £22,390 is £822 above the AskCar estimate of £21,568. The AskCar estimate uses 6,630 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 36 days ago. Its asking price has since fallen by £300. According to the government's MOT record, its advertised mileage is consistent with the latest test. 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 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £822 (3%) over the AskCar estimate of £21,568.

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 6,630 priced Audi A3 adverts across different ages and specifications, as of 4 November 2026.

A 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,600: the median of the 503 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 Audi A3 has been on sale for at least 36 days.

Price history

AskCar first saw this advert on 29 September 2026 at £22,690. Its asking price is now £22,390, £300 less. The latest price cut was seen on 16 October 2026.

Price changes recorded:

• 29 September 2026: £22,690
• 16 October 2026: £22,390

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 15 September 2027.

It has had one MOT, on 2 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 27,736 miles, which matches the advertised 27,861 miles.

Advertised mileage is about 1,200 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

42 other 2023 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £16,290 to £27,898, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 27,545 miles. Price: £20,995, £1,395 less than this car. Dealer: Rodden Road Cars in Frome. AskCar page: https://askcar.co.uk/car/audi-a3-2023-501e4fe13cf8
• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 28,734 miles. Price: £21,450, £940 less than this car. Dealer: Mon Motors Bristol Audi in Bristol. AskCar page: https://askcar.co.uk/car/audi-a3-2023-88e88093b6be
• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 25,765 miles. Price: £20,399, £1,991 less than this car. Dealer: cinch in Doncaster. AskCar page: https://askcar.co.uk/car/audi-a3-2023-403a2cf02ad3

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, grey, under a mile from this car. Mileage: 18,423 miles. Price: £22,990, £600 more than this car. Dealer: Stratstone Milton Keynes Audi in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a2b145b4775d