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: 21,472 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: Black
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 21,472 miles, approximately 5,200 below the typical mileage for its age. Its asking price of £22,380 is £216 above the AskCar estimate of £22,164. The AskCar estimate uses 6,630 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 52 days ago. Its asking price has since fallen by £893. We checked its advertised mileage against the government's MOT record, and they match. The seller is Vindis Group Northampton Audi, based in Northampton. 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: £216 (under 1%) over the AskCar estimate of £22,164.

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 52 days.

Price history

AskCar first saw this advert on 13 September 2026 at £23,273. Its asking price is now £22,380, £893 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 13 September 2026: £23,273
• 15 September 2026: £23,190
• 16 September 2026: £23,209
• 18 September 2026: £22,500
• 10 October 2026: £22,200
• 14 October 2026: £22,822
• 15 October 2026: £22,819
• 16 October 2026: £22,771
• 17 October 2026: £22,764
• 18 October 2026: £22,665
• 20 October 2026: £22,725
• 21 October 2026: £22,665
• 22 October 2026: £21,900
• 4 November 2026: £22,380

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 28 February 2027.

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

Advisories at the latest test: nearside rear tyre obviously under inflated; front windscreen damaged but not adversely affecting driver's view.

Mileage at that test: 18,643 miles, which matches the advertised 21,472 miles.

Advertised mileage is about 5,200 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

42 other 2023 Audi A3 S Line 1.5 petrol automatic saloons are for sale at UK dealers, from £16,290 to £27,898, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 21,439 miles. Price: £22,500, £120 more than this car. Dealer: Sytner Group Leeds Audi in Leeds. AskCar page: https://askcar.co.uk/car/audi-a3-2023-43bcb45dc6b8
• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 21,429 miles. Price: £23,250, £870 more than this car. Dealer: Sytner Group Harrogate Audi in Harrogate. AskCar page: https://askcar.co.uk/car/audi-a3-2023-c9adee9e0512
• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 21,304 miles. Price: £21,490, £890 less than this car. Dealer: Safwat Cars in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/audi-a3-2023-4ef63264a17e

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, grey, 16 miles from this car. Mileage: 18,423 miles. Price: £22,990, £610 more than this car. Dealer: Stratstone Milton Keynes Audi in Milton Keynes. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a2b145b4775d