2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2023
• Mileage: 25,288 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2023 Audi A3 S Line is 25,288 miles. Its asking price of £20,300 is £817 above the AskCar estimate of £19,483. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 1 day ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Marshall Motor Group Newbury Audi, based in Newbury. 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: £817 (4%) over the AskCar estimate of £19,483.

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

AskCar first saw this 2023 Audi A3 advertised 1 day ago. About half of 2023 Audi A3 cars are gone from sale within a month of being advertised: 963 of the 1,886 first advertised between 8 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 1 November 2026 at £20,300. 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 21 October 2027.

It failed its MOT on 21 October 2026 (windscreen washer not working; nearside front tyre has ply or cords exposed) and passed 1 day later, on 22 October 2026.

Advisories at the latest test: rear registration plate deteriorated but not likely to be misread.

Mileage at that test: 25,034 miles, which matches the advertised 25,288 miles.

Advertised mileage is about 1,700 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, white. Mileage: 25,110 miles. Price: £18,610, £1,690 less than this car. Dealer: Big Motoring World Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2023-34eb9c5bc4ba
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 25,500 miles. Price: £18,850, £1,450 less than this car. Dealer: Mon Motors Cheltenham Audi in Cheltenham. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a963ea029dd1
• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 25,515 miles. Price: £20,195, £105 less than this car. Dealer: Group 1 Automotive Norwich Audi in Norwich. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3a98d4192535

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, blue, 18 miles from this car. Mileage: 15,069 miles. Price: £19,999, £301 less than this car. Dealer: cinch Bellevue in Hook. AskCar page: https://askcar.co.uk/car/audi-a3-2023-b79648cca742