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: 24,000 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 24,000 miles on the clock, this 2023 Audi A3 S Line has done roughly 2,800 fewer miles than a typical 2023 Audi A3. Its asking price of £20,495 is £787 below the AskCar estimate of £21,282. To work out the AskCar estimate, we analyse UK dealer adverts for 6,645 Audi A3 cars across different ages and specifications. This car was first seen in our listings data today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is North Devon Motor Trader, based in North Devon. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £787 (3%) under the AskCar estimate of £21,282.

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 6,645 priced Audi A3 adverts across different ages and specifications, as of 5 November 2026.

A 2023 Audi A3 with the 1.5 petrol engine is typically advertised at £20,500: the median of the 513 for sale on AskCar, as of 5 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: 1,037 of the 2,042 first advertised between 8 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 5 November 2026 at £20,495. 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 5 November 2026: valid until 30 October 2027.

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

There were no advisories at the latest test.

Mileage at that test: 24,204 miles, which matches the advertised 24,000 miles.

Advertised mileage is about 2,800 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

137 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 5 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 23,875 miles. Price: £21,998, £1,503 more than this car. Dealer: Arnold Clark Ayr BYD in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2023-45c283f16d5c
• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 24,136 miles. Price: £21,498, £1,003 more than this car. Dealer: Arnold Clark Edinburgh Sighthill Motorstore / Fiat / BYD in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a3-2023-157d661570c8
• 2023 Audi A3 S Line, 1.5 petrol hatchback, black. Mileage: 24,326 miles. Price: £20,395, £100 less than this car. Dealer: R S Car Sales in Crewe. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e5ff901e087d

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, grey, 36 miles from this car. Mileage: 48,641 miles. Price: £19,481, £1,014 less than this car. Dealer: Sinclair Group in Bridgend. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e87b9ff1a0f4