2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI S Line Manual FWD Euro 6 (s/s) 5dr Sportback
• Year: 2023
• Mileage: 17,500 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: White
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 17,500 miles on the clock, this 2023 Audi A3 S Line has done roughly 9,500 fewer miles than a typical 2023 Audi A3. Its asking price of £19,250 is £615 below the AskCar estimate of £19,865. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 32 days ago, and its asking price has since fallen by £700. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Mon Motors Cardiff Audi, based in Cardiff. 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: £615 (3%) under the AskCar estimate of £19,865.

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 32 days.

Price history

AskCar first saw this advert on 1 October 2026 at £19,950. Its asking price is now £19,250, £700 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 1 October 2026: £19,950
• 16 October 2026: £19,990
• 20 October 2026: £19,650
• 1 November 2026: £19,250

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 18 April 2027.

It has had one MOT, on 16 April 2026, and passed.

Advisories at the latest test: offside front tyre slightly damaged sidewall 225/40/18.

Mileage at that test: 14,388 miles, which matches the advertised 17,500 miles.

Advertised mileage is about 9,500 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

79 other 2023 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £13,995 to £22,498, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 17,532 miles. Price: £19,999, £749 more than this car. Dealer: Trust Ford Dagenham in Dagenham. AskCar page: https://askcar.co.uk/car/audi-a3-2023-89e6fe282396
• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 17,092 miles. Price: £19,838, £588 more than this car. Dealer: Lookers Nissan Newcastle in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/audi-a3-2023-dd907fb78bc6
• 2023 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 16,873 miles. Price: £20,998, £1,748 more than this car. Dealer: Arnold Clark Wolverhampton Motorstore / Vanstore in Wolverhampton. AskCar page: https://askcar.co.uk/car/audi-a3-2023-b2af73d3e0b7

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, 23 miles from this car. Mileage: 25,649 miles. Price: £18,950, £300 less than this car. Dealer: Mon Motors Bristol Audi in Bristol. AskCar page: https://askcar.co.uk/car/audi-a3-2023-c3997744ef1d