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: 23,220 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: White
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line has covered 23,220 miles, around 3,500 fewer miles than is typical for its age. Priced at £22,095, it is advertised £668 above the AskCar estimate of £21,427. The AskCar estimate draws on 6,630 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 13 days ago, the asking price has dropped by £855. Its advertised mileage matches the government's MOT record. The seller is Group 1 Automotive Watford Audi, based in Watford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £668 (3%) over the AskCar estimate of £21,427.

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 6,630 priced Audi A3 adverts across different ages and specifications, as of 4 November 2026.

A 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,600: the median of the 503 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 Audi A3 has been on sale for at least 13 days.

Price history

AskCar first saw this advert on 22 October 2026 at £22,950. Its asking price is now £22,095, £855 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 22 October 2026: £22,950
• 24 October 2026: £22,650
• 29 October 2026: £22,350
• 3 November 2026: £22,095

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 29 June 2027.

It has had one MOT, on 19 June 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 20,743 miles, which matches the advertised 23,220 miles.

Advertised mileage is about 3,500 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

132 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 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 23,283 miles. Price: £21,101, £994 less than this car. Dealer: Swansway Garages Carlisle Audi in Carlisle. AskCar page: https://askcar.co.uk/car/audi-a3-2023-1638ad17c2b4
• 2023 Audi A3 S Line, 1.5 petrol hatchback, red. Mileage: 23,407 miles. Price: £21,995, £100 less than this car. Dealer: Group 1 Automotive Chelmsford Audi in Chelmsford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3e428bc3bdd3
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 22,642 miles. Price: £20,133, £1,962 less than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2023-98d74b455c16

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, under a mile from this car. Mileage: 18,158 miles. Price: £22,595, £500 more than this car. Dealer: Group 1 Automotive Watford Audi in Watford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-23d560c88418