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: 25,623 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Black
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 25,623 miles on the clock. The AskCar estimate for this car is £19,280. It is priced at £20,995, which is £1,715 above that estimate. The AskCar estimate uses 6,729 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 2 days ago. The government's MOT record matches its advertised mileage. You can find this car at Group 1 Automotive Stansted Audi in Bishops Stortford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,715 (8%) over the AskCar estimate of £19,280.

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 6,729 priced Audi A3 adverts across different ages and specifications, as of 6 November 2026.

A 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,500: the median of the 512 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2023 Audi A3 advertised 2 days ago. About half of 2023 Audi A3 cars are gone from sale within a month of being advertised: 1,062 of the 2,095 first advertised between 8 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £20,995. 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 6 November 2026: valid until 5 August 2027.

It has had one MOT, on 6 August 2026, and passed.

Advisories at the latest test: nearside rear tyre has a cut but not deep enough to reach the ply or cords.

Mileage at that test: 24,267 miles, which matches the advertised 25,623 miles.

Advertised mileage is about 1,400 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

90 other 2023 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £14,700 to £22,498, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 25,515 miles. Price: £19,995, £1,000 less than this car. Dealer: Group 1 Automotive Norwich Audi in Norwich. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3a98d4192535
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 25,500 miles. Price: £18,650, £2,345 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, grey. Mileage: 25,846 miles. Price: £19,290, £1,705 less than this car. Dealer: Direct Cars in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-942c00f8a5ab

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, white, 17 miles from this car. Mileage: 20,074 miles. Price: £18,840, £2,155 less than this car. Dealer: Big Motoring World Enfield in Enfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3c5056b86954