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: 36,000 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: Black
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 36,000 miles, this 2023 Audi A3 S Line has covered about 9,000 more miles than other 2023 Audi A3 cars. Its asking price of £20,850 is £642 above the AskCar estimate of £20,208. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. This car was first seen in our listings data 2 days ago. Its advertised mileage matches the government's MOT record. The seller is Group 1 Automotive Chingford Audi, based in Chingford. 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: £642 (3%) over the AskCar estimate of £20,208.

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 2 days 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 31 October 2026 at £20,850. 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 5 March 2027.

It failed its MOT on 23 February 2026 (offside front tyre has ply or cords exposed) and passed later the same day.

Advisories at the latest test: nearside rear tyre worn close to legal limit/worn on edge 2MM AND CUT, BUT NO CORDS SHOWING.

Mileage at that test: 28,996 miles, which matches the advertised 36,000 miles.

Advertised mileage is about 9,000 miles higher 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, grey. Mileage: 35,900 miles. Price: £19,995, £855 less than this car. Dealer: FJ Chalke - Nissan, Yeovil in Yeovil. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e900930b65f7
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 35,885 miles. Price: £20,612, £238 less than this car. Dealer: Vindis Group Bedford Audi in Bedford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-7d38fea925bc
• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 36,250 miles. Price: £20,995, £145 more than this car. Dealer: Listers Audi Coventry in Coventry. AskCar page: https://askcar.co.uk/car/audi-a3-2023-86ca2e6bde57

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, white, 5 miles from this car. Mileage: 24,550 miles. Price: £20,030, £820 less than this car. Dealer: Big Motoring World Enfield in Enfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-2210ea8b7f9d