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: 18,555 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: Black
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 18,555 miles, approximately 8,400 below the typical mileage for its age. The AskCar estimate for this car is £21,926. It is priced at £20,623, which is £1,303 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. We first saw this car advertised 53 days ago. Its asking price has since fallen by £2,227. The government's MOT record matches its advertised mileage. It is advertised by Prestige Cars Kent in Orpington. 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: £1,303 (5%) under the AskCar estimate of £21,926.

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 53 days.

Price history

AskCar first saw this advert on 10 September 2026 at £22,850. Its asking price is now £20,623, £2,227 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 10 September 2026: £22,850
• 19 September 2026: £22,598
• 22 September 2026: £22,224
• 28 September 2026: £22,026
• 1 October 2026: £21,918
• 3 October 2026: £21,788
• 10 October 2026: £21,540
• 15 October 2026: £21,398
• 17 October 2026: £21,291
• 20 October 2026: £21,120
• 24 October 2026: £21,000
• 29 October 2026: £20,845
• 31 October 2026: £20,623

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 March 2027.

It has had one MOT, on 30 March 2026, and passed.

Advisories at the latest test: nearside front inner tyre worn close to legal limit/worn on edge; offside front inner tyre worn close to legal limit/worn on edge; nearside rear inner tyre has a cut but not deep enough to reach the ply or cords.

Mileage at that test: 16,534 miles, which matches the advertised 18,555 miles.

Advertised mileage is about 8,400 miles lower 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: 18,555 miles. Price: £22,445, £1,822 more than this car. Dealer: Swansway Garages Preston Audi in Preston. AskCar page: https://askcar.co.uk/car/audi-a3-2023-9b9be06b802f
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 18,779 miles. Price: £20,674, £51 more than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e4221b4bfe2f
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 18,819 miles. Price: £21,745, £1,122 more than this car. Dealer: Yeovil Audi in Yeovil. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a3af80476b6c

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, red, 12 miles from this car. Mileage: 5,881 miles. Price: £24,299, £3,676 more than this car. Dealer: cinch in Coulsdon. AskCar page: https://askcar.co.uk/car/audi-a3-2023-5a5f495c3985