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: 29,998 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 29,998 miles on the clock, this 2023 Audi A3 S Line has done roughly 3,000 more miles than a typical 2023 Audi A3. The AskCar estimate for this car is £21,863. It is priced at £21,495, which is £368 below that estimate. The AskCar estimate draws on 6,542 Audi A3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 23 days ago, the asking price has dropped by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Swansway Garages Preston Audi, based in Preston. 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: £368 (1%) under the AskCar estimate of £21,863.

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 23 days.

Price history

AskCar first saw this advert on 10 October 2026 at £21,995. Its asking price is now £21,495, £500 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 10 October 2026: £21,995
• 23 October 2026: £21,845
• 26 October 2026: £21,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 10 July 2027.

It has had one MOT, on 22 June 2026, and passed.

Advisories at the latest test: rear brake disc worn, pitted or scored, but not seriously weakened.

Mileage at that test: 26,905 miles, which matches the advertised 29,998 miles.

Advertised mileage is about 3,000 miles higher 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 £21,999, 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, £295 more 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: 36,770 miles. Price: £18,995, £2,500 less than this car. Dealer: Noya Cars in Barnet. AskCar page: https://askcar.co.uk/car/audi-a3-2023-a203f6619384
• 2023 Audi A3 S Line, 2.0 diesel saloon, white. Mileage: 38,508 miles. Price: £21,563, £68 more than this car. Dealer: Marriott Motor Group Ipswich Audi in Ipswich. AskCar page: https://askcar.co.uk/car/audi-a3-2023-69cfe4b7989d

• The nearest: 2023 Audi A3 S Line, 2.0 diesel saloon, white, 69 miles from this car. Mileage: 55,233 miles. Price: £19,490, £2,005 less than this car. Dealer: Swansway Garages Stafford Audi in Stafford. AskCar page: https://askcar.co.uk/car/audi-a3-2023-8f576b3c6ddd