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: 18,596 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: White
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 18,596 miles, approximately 8,400 below the typical mileage for its age. Priced at £22,698, it is advertised £203 above the AskCar estimate of £22,495. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 43 days ago. Its asking price has since fallen by £2,298. The seller is Group 1 Automotive Audi Approved Colchester, based in Colchester. 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: £203 (under 1%) over the AskCar estimate of £22,495.

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 43 days.

Price history

AskCar first saw this advert on 20 September 2026 at £24,996. Its asking price is now £22,698, £2,298 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 20 September 2026: £24,996
• 26 September 2026: £24,296
• 4 October 2026: £23,996
• 9 October 2026: £23,495
• 14 October 2026: £22,796
• 20 October 2026: £22,750
• 28 October 2026: £22,698

Mileage and MOT

Advertised mileage is about 8,400 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

41 other 2023 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £16,290 to £24,499, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 18,423 miles. Price: £22,990, £292 more than this car. Dealer: Stratstone Milton Keynes Audi in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a2b145b4775d
• 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 18,931 miles. Price: £22,490, £208 less than this car. Dealer: Swansway Garages Crewe Audi in Crewe. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e5bc54657ef5
• 2023 Audi A3 S Line, 1.5 petrol saloon, white. Mileage: 17,499 miles. Price: £21,799, £899 less than this car. Dealer: Freewheel Autos in Chorley. AskCar page: https://askcar.co.uk/car/audi-a3-2023-4fe4352c2b9e

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, grey, 22 miles from this car. Mileage: 13,070 miles. Price: £21,995, £703 less than this car. Dealer: Group 1 Automotive Chelmsford Audi in Chelmsford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-f1f824da59cb