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: 30,946 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

This 2023 Audi A3 S Line has covered 30,946 miles, around 3,900 more miles than is typical for its age. Priced at £20,990, it is advertised £227 above the AskCar estimate of £20,763. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first saw this car advertised 51 days ago. 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 Sinclair Audi Approved Neyland, based in Neyland. 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: £227 (1%) over the AskCar estimate of £20,763.

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 51 days.

Price history

AskCar first saw this advert on 12 September 2026 at £21,690. Its asking price is now £20,990, £700 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 12 September 2026: £21,690
• 22 September 2026: £21,390
• 6 October 2026: £21,250
• 15 October 2026: £21,190
• 29 October 2026: £20,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 23 March 2027.

It has had one MOT, on 13 March 2026, and passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge worn on inner edge; offside front tyre worn close to legal limit/worn on edge worn on inner edge.

Mileage at that test: 27,334 miles, which matches the advertised 30,946 miles.

Advertised mileage is about 3,900 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, white. Mileage: 30,944 miles. Price: £21,000, the same price as this car. Dealer: Sytner Group Huddersfield Audi in Huddersfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e11cdefd88cb
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 31,299 miles. Price: £20,668, £322 less than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ae49a3fcb12f
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 30,509 miles. Price: £22,990, £2,000 more than this car. Dealer: Marshall Motor Group Maidstone Audi in Maidstone. AskCar page: https://askcar.co.uk/car/audi-a3-2023-cd7c89c29d27

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, red, under a mile from this car. Mileage: 47,252 miles. Price: £19,390, £1,600 less than this car. Dealer: Sinclair Audi Approved Neyland in Neyland. AskCar page: https://askcar.co.uk/car/audi-a3-2023-d15e9754adbb