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: 23,283 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

At 23,283 miles, this 2023 Audi A3 S Line has covered about 3,400 fewer miles than other 2023 Audi A3 cars. The dealer is asking £21,101, which is £320 below the AskCar estimate of £21,421. To work out the AskCar estimate, we analyse UK dealer adverts for 6,630 Audi A3 cars across different ages and specifications. We first saw this car advertised 41 days ago. Its asking price has since fallen by £649. The seller is Swansway Garages Carlisle Audi, based in Carlisle. 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: £320 (1%) under the AskCar estimate of £21,421.

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 41 days.

Price history

AskCar first saw this advert on 24 September 2026 at £21,750. Its asking price is now £21,101, £649 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 24 September 2026: £21,750
• 22 October 2026: £21,220
• 4 November 2026: £21,101

Mileage and MOT

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

Similar cars

132 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 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 23,220 miles. Price: £22,095, £994 more than this car. Dealer: Group 1 Automotive Watford Audi in Watford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e771fa25f38e
• 2023 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 23,407 miles. Price: £21,995, £894 more than this car. Dealer: Group 1 Automotive Chelmsford Audi in Chelmsford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3e428bc3bdd3
• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 23,875 miles. Price: £21,998, £897 more than this car. Dealer: Arnold Clark Ayr BYD in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2023-45c283f16d5c

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, 49 miles from this car. Mileage: 33,781 miles. Price: £20,995, £106 less than this car. Dealer: Lake District Audi in Grange-over-Sands. AskCar page: https://askcar.co.uk/car/audi-a3-2023-304b7e8c68a2