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: 22,961 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: Blue
• CO2: 131 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line is advertised with 22,961 miles, approximately 4,000 below the typical mileage for its age. The dealer is asking £21,798, which is £172 below the AskCar estimate of £21,970. To work out the AskCar estimate, we analyse UK dealer adverts for 6,729 Audi A3 cars across different ages and specifications. We first recorded this car for sale today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Swansway Garages Carlisle Audi, based in Carlisle. 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: £172 (under 1%) under the AskCar estimate of £21,970.

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 £21,798. 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 17 October 2027.

It has had one MOT, on 6 October 2026, and passed.

Advisories at the latest test: nearside front shock absorbers has light misting of oil; offside front shock absorbers has light misting of oil.

Mileage at that test: 22,001 miles, which matches the advertised 22,961 miles.

Advertised mileage is about 4,000 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

40 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 6 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 21,472 miles. Price: £21,700, £98 less than this car. Dealer: Vindis Group Northampton Audi in Northampton. AskCar page: https://askcar.co.uk/car/audi-a3-2023-727a75058140
• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 21,439 miles. Price: £23,000, £1,202 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: £22,950, £1,152 more than this car. Dealer: Sytner Group Harrogate Audi in Harrogate. AskCar page: https://askcar.co.uk/car/audi-a3-2023-c9adee9e0512

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, blue, 51 miles from this car. Mileage: 8,438 miles. Price: £22,985, £1,187 more than this car. Dealer: Stoneacre Newcastle Volvo in Scotswood. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a13031d43188