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: 19,871 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 19,871 miles, around 6,800 fewer miles than is typical for its age. Priced at £21,300, it is advertised £435 below the AskCar estimate of £21,735. To work out the AskCar estimate, we analyse UK dealer adverts for 6,630 Audi A3 cars across different ages and specifications. We have tracked this advert for 1 day. Its advertised mileage matches the government's MOT record. The seller is Carbase Bristol, based in Bristol. 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: £435 (2%) under the AskCar estimate of £21,735.

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

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: 1,015 of the 1,999 first advertised between 8 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £21,300. 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 4 November 2026: valid until 23 October 2027.

It has had one MOT, on 2 October 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 19,289 miles, which matches the advertised 19,871 miles.

Advertised mileage is about 6,800 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, grey. Mileage: 19,348 miles. Price: £20,900, £400 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-09773abf2ab3
• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 20,704 miles. Price: £21,295, the same price as this car. Dealer: Witham Garage in Melton Mowbray. AskCar page: https://askcar.co.uk/car/audi-a3-2023-49d5c7952a20
• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 19,000 miles. Price: £23,250, £1,950 more than this car. Dealer: Stratstone Audi Approved Aylesbury in Aylesbury. AskCar page: https://askcar.co.uk/car/audi-a3-2023-b3b8f2102a4d

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, white, under a mile from this car. Mileage: 25,991 miles. Price: £20,000, £1,300 less than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a3-2023-f02ccffbe392