2023 Audi A3 2.0 TDI S Line

Overview

• Make: Audi
• Model: A3
• Trim: S Line
• Version: 2.0 TDI 35 S Line S tronic FWD Euro 6 (s/s) 5dr Sportback (148 bhp)
• Year: 2023
• Mileage: 29,090 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 29,090 miles, this 2023 Audi A3 S Line has covered about 2,100 more miles than other 2023 Audi A3 cars. Its asking price of £22,494 is £478 above the AskCar estimate of £22,016. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. It first appeared in our advert records 59 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Sinclair Volkswagen (Swansea), based in Swansea. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £478 (2%) over the AskCar estimate of £22,016.

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 6,542 priced Audi A3 adverts across different ages and specifications, as of 2 November 2026.

A 2023 Audi A3 with the 2.0 diesel engine is typically advertised at £21,500: the median of the 113 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2023 Audi A3 has been on sale for at least 59 days.

Price history

AskCar first saw this advert on 4 September 2026 at £22,494. 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 2 November 2026: valid until 27 March 2027.

It has had 2 MOTs. The latest, on 24 March 2026, passed.

Advisories at the latest test: tyre worn close to legal limit/worn on edge both front tyres are wearing at inner edges.

Mileage at that test: 22,183 miles, which matches the advertised 29,090 miles.

Advertised mileage is about 2,100 miles higher than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

40 other 2023 Audi A3 S Line 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £16,203 to £24,699, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 2.0 diesel hatchback, grey. Mileage: 27,991 miles. Price: £21,985, £509 less than this car. Dealer: Sere Used Car Supermarket Lisburn in Lisburn. AskCar page: https://askcar.co.uk/car/audi-a3-2023-51f09ded7efb
• 2023 Audi A3 S Line, 2.0 diesel hatchback, grey. Mileage: 27,781 miles. Price: £20,990, £1,504 less than this car. Dealer: Swansway Garages Blackburn Audi in Blackburn. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a7af356659c5
• 2023 Audi A3 S Line, 2.0 diesel hatchback, blue. Mileage: 26,989 miles. Price: £22,498, the same price as this car. Dealer: Arnold Clark Edinburgh Sighthill Vauxhall / Peugeot / Leapmotor in Edinburgh. AskCar page: https://askcar.co.uk/car/audi-a3-2023-b24a96b76c30

• The nearest: 2023 Audi A3 S Line, 2.0 diesel hatchback, black, 57 miles from this car. Mileage: 44,017 miles. Price: £18,450, £4,044 less than this car. Dealer: Stellantis &You Bristol Cribbs in Bristol. AskCar page: https://askcar.co.uk/car/audi-a3-2023-944442aca4ad