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: 23,979 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: Grey
• CO2: 135 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 23,979 miles on the clock, this 2023 Audi A3 S Line has done roughly 3,000 fewer miles than a typical 2023 Audi A3. Its asking price of £21,549 is £294 above the AskCar estimate of £21,255. The AskCar estimate uses 6,729 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. The seller is Motorpoint Birtley, based in Birtley. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £294 (1%) over the AskCar estimate of £21,255.

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 6,729 priced Audi A3 adverts across different ages and specifications, as of 6 November 2026.

A 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,500: the median of the 512 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2023 Audi A3 advertised today. About half of 2023 Audi A3 cars are gone from sale within a month of being advertised: 1,062 of the 2,095 first advertised between 8 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £21,549. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 31 August 2027.

It has had one MOT, on 26 August 2026, and passed.

Advisories at the latest test: nearside rear tyre slightly damaged/cracking or perishing; offside rear tyre slightly damaged/cracking or perishing.

Mileage at that test: 22,959 miles, which matches the advertised 23,979 miles.

Advertised mileage is about 3,000 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

139 other 2023 Audi A3 S Line 1.5 petrol automatic hatchbacks are for sale at UK dealers, from £16,930 to £24,670, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 24,000 miles. Price: £20,495, £1,054 less than this car. Dealer: North Devon Motor Trader in Barnstaple. AskCar page: https://askcar.co.uk/car/audi-a3-2023-47eeac96d1c6
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 24,017 miles. Price: £21,549, the same price as this car. Dealer: Motorpoint Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a3-2023-ee8538ccd313
• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 23,875 miles. Price: £21,998, £449 more than this car. Dealer: Arnold Clark Ayr BYD in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2023-45c283f16d5c

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, blue, under a mile from this car. Mileage: 16,335 miles. Price: £21,549, the same price as this car. Dealer: Motorpoint Birtley in Birtley. AskCar page: https://askcar.co.uk/car/audi-a3-2023-22ab35dda6ed