2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2023
• Mileage: 18,952 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: White
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 18,952 miles, approximately 7,700 below the typical mileage for its age. Its asking price of £19,477 is £450 below the AskCar estimate of £19,927. The AskCar estimate uses UK dealer asking prices, including 6,630 Audi A3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 39 days ago. Its asking price has since fallen by £1,000. We checked its advertised mileage against the government's MOT record, and they match. The seller is CarSupermarket.com Birmingham, based in Birmingham. 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: £450 (2%) under the AskCar estimate of £19,927.

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 39 days.

Price history

AskCar first saw this advert on 26 September 2026 at £20,477. Its asking price is now £19,477, £1,000 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 26 September 2026: £20,477
• 6 October 2026: £20,277
• 14 October 2026: £19,977
• 15 October 2026: £19,677
• 22 October 2026: £19,477

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 24 September 2027.

It has had one MOT, on 25 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 18,954 miles, which matches the advertised 18,952 miles.

Advertised mileage is about 7,700 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

85 other 2023 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £14,700 to £22,498, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 19,150 miles. Price: £20,000, £523 more than this car. Dealer: Drift Bridge Audi Approved - Epsom in Epsom. AskCar page: https://askcar.co.uk/car/audi-a3-2023-540f6d6caa7f
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 19,184 miles. Price: £19,999, £522 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ad74ad51b000
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 19,352 miles. Price: £19,499, the same price as this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e2cf706b3586

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, white, 11 miles from this car. Mileage: 53,238 miles. Price: £17,998, £1,479 less than this car. Dealer: Arnold Clark Oldbury Fiat / Motorstore / Jeep / Abarth / BYD in Oldbury. AskCar page: https://askcar.co.uk/car/audi-a3-2023-12972a02a627