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: 44,969 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: Blue
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 44,969 miles, approximately 18,000 above the typical mileage for its age. The dealer is asking £20,495, which is £1,237 above the AskCar estimate of £19,258. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We have tracked this advert for 40 days. The government's MOT record matches its advertised mileage. You can find this car at John Clark Motor Group in Inverness. 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: £1,237 (6%) over the AskCar estimate of £19,258.

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 40 days.

Price history

AskCar first saw this advert on 23 September 2026 at £20,495. 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 30 March 2027.

It has had one MOT, on 24 March 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 34,646 miles, which matches the advertised 44,969 miles.

Advertised mileage is about 18,000 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, blue. Mileage: 45,258 miles. Price: £18,994, £1,501 less than this car. Dealer: Pentagon Kia Mansfield in Mansfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-680722341248
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 44,006 miles. Price: £18,395, £2,100 less than this car. Dealer: Motor Range Liverpool in Liverpool. AskCar page: https://askcar.co.uk/car/audi-a3-2023-6a9a24418027
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 43,682 miles. Price: £19,010, £1,485 less than this car. Dealer: Big Motoring World Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-cffdf8b9b3e7

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, under a mile from this car. Mileage: 16,496 miles. Price: £22,995, £2,500 more than this car. Dealer: Hawco Group Highland Audi in Inverness. AskCar page: https://askcar.co.uk/car/audi-a3-2023-1fb563ad24f3