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: 45,258 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 45,258 miles, approximately 18,600 above the typical mileage for its age. The dealer is asking £18,444, which is £740 below the AskCar estimate of £19,184. To work out the AskCar estimate, we analyse UK dealer adverts for 6,630 Audi A3 cars across different ages and specifications. We first recorded this advert 11 days ago, and its asking price has since fallen by £550. Its advertised mileage matches the government's MOT record. The seller is Pentagon Kia Mansfield, based in Mansfield. 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: £740 (3%) under the AskCar estimate of £19,184.

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 11 days.

Price history

AskCar first saw this advert on 24 October 2026 at £18,994. Its asking price is now £18,444, £550 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 24 October 2026: £18,994
• 3 November 2026: £18,744
• 4 November 2026: £18,444

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 9 March 2027.

It failed its MOT on 18 February 2026 (nearside rear tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed later the same day.

Advisories at the latest test: offside front tyre has a cut but not deep enough to reach the ply or cords; nearside front shock absorbers has light misting of oil; offside front shock absorbers has light misting of oil.

Mileage at that test: 37,957 miles, which matches the advertised 45,258 miles.

Advertised mileage is about 18,600 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

132 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 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 44,969 miles. Price: £20,495, £2,051 more than this car. Dealer: John Clark Motor Group in Inverness. AskCar page: https://askcar.co.uk/car/audi-a3-2023-0a5cf4726f3d
• 2023 Audi A3 S Line, 1.5 petrol hatchback, blue. Mileage: 44,006 miles. Price: £18,395, the same price as 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: £18,970, £526 more 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, blue, 13 miles from this car. Mileage: 11,840 miles. Price: £20,495, £2,051 more than this car. Dealer: V12 Sports & Classics Ltd -Worksop in Worksop. AskCar page: https://askcar.co.uk/car/audi-a3-2023-118e18ce761d