2023 Audi A3 1.5 TFSI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 1.5 TFSI 35 S Line Manual FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2023
• Mileage: 9,787 miles
• Fuel: Petrol
• Body: Hatchback, 5 doors, 5 seats
• Engine: 1.5 litres, 148 bhp
• Gearbox: Manual
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 9,787 miles on the clock, this 2023 Audi A3 S Line has done roughly 17,200 fewer miles than a typical 2023 Audi A3. The AskCar estimate for this car is £20,644. It is priced at £21,495, which is £851 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,729 Audi A3 cars across different ages and specifications. It first appeared in our advert records 3 days ago. Its advertised mileage matches the government's MOT record. The seller is Heritage Audi Audi Swindon, based in Swindon. 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: £851 (4%) over the AskCar estimate of £20,644.

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 3 days ago. 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 3 November 2026 at £21,495. 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 6 November 2026: valid until 6 October 2027.

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

There were no advisories at the latest test.

Mileage at that test: 9,497 miles, which matches the advertised 9,787 miles.

Advertised mileage is about 17,200 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

90 other 2023 Audi A3 S Line 1.5 petrol manual hatchbacks are for sale at UK dealers, from £14,700 to £22,498, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 1.5 petrol hatchback. Mileage: 9,787 miles. Price: £21,495, the same price as this car. Dealer: Heritage Automotive in Swindon. AskCar page: https://askcar.co.uk/car/audi-a3-2023-1dfc161b5d8c
• 2023 Audi A3 S Line, 1.5 petrol hatchback, white. Mileage: 9,768 miles. Price: £19,630, £1,865 less than this car. Dealer: CarTime in Bury. AskCar page: https://askcar.co.uk/car/audi-a3-2023-719a2e8aa39f
• 2023 Audi A3 S Line, 1.5 petrol hatchback, grey. Mileage: 10,241 miles. Price: £20,899, £596 less than this car. Dealer: Stratstone Manchester Audi in Manchester. AskCar page: https://askcar.co.uk/car/audi-a3-2023-9a7410437bf6

• The nearest: 2023 Audi A3 S Line, 1.5 petrol hatchback, blue, 3 miles from this car. Mileage: 21,169 miles. Price: £20,500, £995 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/audi-a3-2023-2788c5fc8eaf