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: 43,327 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 has covered 43,327 miles, around 16,300 more miles than is typical for its age. Priced at £20,679, it is advertised £1,119 above the AskCar estimate of £19,560. The AskCar estimate uses 6,705 UK dealer adverts for the Audi A3, with adjustments for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. We checked its advertised mileage against the government's MOT record, and they match. The seller is Lookers Audi Wearside, based in Sunderland. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,119 (5%) over the AskCar estimate of £19,560.

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 6,705 priced Audi A3 adverts across different ages and specifications, as of 12 November 2026.

A 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,500: the median of the 496 for sale on AskCar, as of 12 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: 1,113 of the 2,224 first advertised between 12 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 12 November 2026 at £20,679. 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 12 November 2026: valid until 26 September 2027.

It has had one MOT, on 16 September 2026, and passed.

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

Mileage at that test: 42,550 miles, which matches the advertised 43,327 miles.

Advertised mileage is about 16,300 miles higher 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 £24,550, as of 12 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol saloon, black. Mileage: 42,123 miles. Price: £19,995, £684 less than this car. Dealer: Cameron Motor Group Perth Audi in Perth. AskCar page: https://askcar.co.uk/car/audi-a3-2023-52afe6210c10
• 2023 Audi A3 S Line, 1.5 petrol saloon, blue. Mileage: 44,765 miles. Price: £20,498, £181 less than this car. Dealer: Arnold Clark Manchester Vauxhall in Manchester. AskCar page: https://askcar.co.uk/car/audi-a3-2023-b7a4f301f2bf
• 2023 Audi A3 S Line, 1.5 petrol saloon, grey. Mileage: 41,330 miles. Price: £19,594, £1,085 less than this car. Dealer: Trust Ford Edgware in Edgware. AskCar page: https://askcar.co.uk/car/audi-a3-2023-655a6421b0e3

• The nearest: 2023 Audi A3 S Line, 1.5 petrol saloon, blue, 12 miles from this car. Mileage: 8,438 miles. Price: £22,985, £2,306 more than this car. Dealer: Stoneacre Newcastle Volvo in Scotswood. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a13031d43188