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: 23,784 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Grey
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A3 S Line has covered 23,784 miles, around 3,200 fewer miles than is typical for its age. The AskCar estimate for this car is £22,526. It is priced at £20,550, which is £1,976 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. We first saw this car advertised 39 days ago. Its asking price has since fallen by £1,250. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Car Planet Watford in Rickmansworth. 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

Good value: £1,976 (8%) under the AskCar estimate of £22,526.

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 39 days.

Price history

AskCar first saw this advert on 24 September 2026 at £21,800. Its asking price is now £20,550, £1,250 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 24 September 2026: £21,800
• 5 October 2026: £21,500
• 11 October 2026: £21,350
• 19 October 2026: £21,050
• 26 October 2026: £20,750
• 1 November 2026: £20,550

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 11 July 2027.

It has had one MOT, on 6 July 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 22,386 miles, which matches the advertised 23,784 miles.

Advertised mileage is about 3,200 miles lower 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, white. Mileage: 23,731 miles. Price: £21,799, £1,249 more than this car. Dealer: Lookers Audi Ayr in Prestwick. AskCar page: https://askcar.co.uk/car/audi-a3-2023-23fe34776d4e
• 2023 Audi A3 S Line, 2.0 diesel hatchback, black. Mileage: 24,050 miles. Price: £20,760, £210 more than this car. Dealer: Evans Halshaw Ford Hull East in Kingston upon Hull. AskCar page: https://askcar.co.uk/car/audi-a3-2023-e418d718fb33
• 2023 Audi A3 S Line, 2.0 diesel hatchback, black. Mileage: 22,642 miles. Price: £22,498, £1,948 more than this car. Dealer: Arnold Clark Liverpool Motorstore / MG / Chery in Liverpool. AskCar page: https://askcar.co.uk/car/audi-a3-2023-8ca0f7ac2f90

• The nearest: 2023 Audi A3 S Line, 2.0 diesel hatchback, grey, 13 miles from this car. Mileage: 12,873 miles. Price: £23,290, £2,740 more than this car. Dealer: Group 1 Automotive Finchley Road Audi in Camden. AskCar page: https://askcar.co.uk/car/audi-a3-2023-287d6b80e72e