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: 14,715 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: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line has covered 14,715 miles, around 12,300 fewer miles than is typical for its age. The AskCar estimate for this car is £21,899. It is priced at £21,829, which is £70 below that estimate. The AskCar estimate uses UK dealer asking prices, including 6,705 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. The seller is Allen Motor Group SMC Ford - Gravesend, based in Gravesend. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £70 (under 1%) under the AskCar estimate of £21,899.

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 6,705 priced Audi A3 adverts across different ages and specifications, as of 12 November 2026.

A 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,500: the median of the 496 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2023 Audi A3 advertised today. About half of 2023 Audi A3 cars are gone from sale within a month of being advertised: 1,113 of the 2,224 first advertised between 12 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 12 November 2026 at £21,829. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 12 November 2026: valid until 16 June 2027.

It has had one MOT, on 22 May 2026, and passed.

Advisories at the latest test: nearside rear advise cracks on inner tread.

Mileage at that test: 12,945 miles, which matches the advertised 14,715 miles.

Advertised mileage is about 12,300 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

135 other 2023 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £17,280 to £24,670, as of 12 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 14,775 miles. Price: £21,375, £454 less than this car. Dealer: Drift Bridge Audi Approved - Epsom in Epsom. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ccfec5deb7c9
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 14,642 miles. Price: £22,050, £221 more than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a3-2023-679f31aefe1a
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 14,853 miles. Price: £19,999, £1,830 less than this car. Dealer: Automania Specialist Cars in West Bromwich. AskCar page: https://askcar.co.uk/car/audi-a3-2023-76bc3439a838

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, black, 11 miles from this car. Mileage: 18,555 miles. Price: £20,445, £1,384 less than this car. Dealer: Prestige Cars Kent in Bromley. AskCar page: https://askcar.co.uk/car/audi-a3-2023-96f10f539d7d