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) 4dr (148 bhp)
• Year: 2023
• Mileage: 6,329 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line has covered 6,329 miles, around 20,700 fewer miles than is typical for its age. The AskCar estimate for this car is £24,131. It is priced at £23,698, which is £433 below that estimate. The AskCar estimate uses 6,542 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 31 days ago. Its asking price has since fallen by £472. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Lookers Audi Teesside in Stockton-on-Tees. 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: £433 (1%) under the AskCar estimate of £24,131.

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 31 days.

Price history

AskCar first saw this advert on 2 October 2026 at £24,170. Its asking price is now £23,698, £472 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 2 October 2026: £24,170
• 7 October 2026: £23,998
• 16 October 2026: £23,798
• 23 October 2026: £23,698

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 12 January 2027.

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

There were no advisories at the latest test.

Mileage at that test: 5,613 miles, which matches the advertised 6,329 miles.

Advertised mileage is about 20,700 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

41 other 2023 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £16,290 to £24,499, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 6,666 miles. Price: £24,250, £552 more than this car. Dealer: Group 1 Automotive Watford Audi in Watford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ac94a8a56d11
• 2023 Audi A3 S Line, 1.5 petrol saloon, white. Mileage: 4,503 miles. Price: £24,499, £801 more than this car. Dealer: Stratstone Amersham Audi in Amersham. AskCar page: https://askcar.co.uk/car/audi-a3-2023-0c39f78d471f
• 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 10,185 miles. Price: £22,815, £883 less than this car. Dealer: Vertu BYD Macclesfield in Macclesfield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-6699c2ffa5ea

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, grey, under a mile from this car. Mileage: 14,500 miles. Price: £23,137, £561 less than this car. Dealer: Lookers Audi Teesside in Teesside. AskCar page: https://askcar.co.uk/car/audi-a3-2023-8c5ca1b42654