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: 23,875 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 23,875 miles, around 3,100 fewer miles than is typical for its age. The AskCar estimate for this car is £21,428. It is priced at £21,998, which is £570 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,542 Audi A3 adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 9 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Arnold Clark Ayr BYD, based in AYR. 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: £570 (2%) over the AskCar estimate of £21,428.

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 9 days.

Price history

AskCar first saw this advert on 24 October 2026 at £21,998. 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 2 November 2026: valid until 22 August 2027.

It has had one MOT, on 20 August 2026, and passed.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge; front brake disc worn, but not excessively both sides.

Mileage at that test: 22,236 miles, which matches the advertised 23,875 miles.

Advertised mileage is about 3,100 miles lower 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, black. Mileage: 24,136 miles. Price: £21,498, £500 less than this car. Dealer: Arnold Clark Edinburgh Sighthill Motorstore / Fiat / BYD in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a3-2023-157d661570c8
• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 24,326 miles. Price: £20,395, £1,603 less than this car. Dealer: R S Car Sales in Crewe. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e5ff901e087d
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 24,332 miles. Price: £23,295, £1,297 more than this car. Dealer: Sandown Group Avocado Newbury in Newbury. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ea2677540467

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, white, under a mile from this car. Mileage: 43,410 miles. Price: £20,498, £1,500 less than this car. Dealer: Arnold Clark Ayr BYD in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3798f832b717