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) 4dr (148 bhp)
• Year: 2023
• Mileage: 20,574 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Red
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line has covered 20,574 miles, around 6,400 fewer miles than is typical for its age. Priced at £21,999, it is advertised £772 below the AskCar estimate of £22,771. To work out the AskCar estimate, we analyse UK dealer adverts for 6,542 Audi A3 cars across different ages and specifications. The dealer may accept less. This car has been on sale for at least 81 days, and its asking price is down £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Available Car Supermarket - Sutton-In-Ashfield, based in Sutton-in-Ashfield. 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: £772 (3%) under the AskCar estimate of £22,771.

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

The dealer may accept less. This 2023 Audi A3 has been on sale for at least 81 days, and its asking price has been cut by £500. About half of 2023 Audi A3 cars are gone from sale within a month of being advertised: 963 of the 1,886 first advertised between 8 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 13 August 2026 at £22,499. Its asking price is now £21,999, £500 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 13 August 2026: £22,499
• 14 October 2026: £22,299
• 21 October 2026: £21,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 19 March 2027.

It failed its MOT on 20 March 2026 (front registration plate does not conform to the specified requirements; rear registration plate does not conform to the specified requirements) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 16,492 miles, which matches the advertised 20,574 miles.

Advertised mileage is about 6,400 miles lower than the median mileage of a 2023 Audi A3 on AskCar.

Similar cars

5 other 2023 Audi A3 S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £18,995 to £21,790, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A3 S Line, 2.0 diesel saloon, blue. Mileage: 27,529 miles. Price: £21,790, £209 less than this car. Dealer: Horton SEAT I CUPRA in Lincoln. AskCar page: https://askcar.co.uk/car/audi-a3-2023-3682252a9183
• 2023 Audi A3 S Line, 2.0 diesel saloon, black. Mileage: 29,998 miles. Price: £21,495, £504 less than this car. Dealer: Swansway Garages Preston Audi in Preston. AskCar page: https://askcar.co.uk/car/audi-a3-2023-91502b90c808
• 2023 Audi A3 S Line, 2.0 diesel saloon, black. Mileage: 36,770 miles. Price: £18,995, £3,004 less than this car. Dealer: Noya Cars in Barnet. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a203f6619384