2023 Audi A4 2.0 TDI S Line

Overview

• Make: Audi
• Model: A4
• Trim: S Line
• Version: 2.0 TDI S Line S tronic FWD Euro 6 4dr (160 bhp)
• Year: 2023
• Mileage: 35,626 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 160 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: White
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2023 Audi A4 S Line has covered 35,626 miles, around 7,200 more miles than is typical for its age. The AskCar estimate for this car is £20,643. It is priced at £21,999, which is £1,356 above that estimate. The AskCar estimate draws on 1,427 Audi A4 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 23 days. The government's MOT record matches its advertised mileage. You can find this car at Days Motorpark in Swansea. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,356 (6%) over the AskCar estimate of £20,643.

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 1,427 priced Audi A4 adverts across different ages and specifications, as of 4 November 2026.

A 2023 Audi A4 with the 2.0 diesel engine is typically advertised at £20,800: the median of the 219 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2023 Audi A4 has been on sale for at least 23 days.

Price history

AskCar first saw this advert on 12 October 2026 at £21,999. 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 4 November 2026: valid until 29 September 2027.

It failed its MOT on 2 September 2026 (front brake pad(s) less than 1.5 mm thick; nearside front tyre tread depth below requirements of 1.6mm; offside front tyre tread depth below requirements of 1.6mm) and passed 1 day later, on 3 September 2026.

There were no advisories at the latest test.

Mileage at that test: 33,674 miles, which matches the advertised 35,626 miles.

Advertised mileage is about 7,200 miles higher than the median mileage of a 2023 Audi A4 on AskCar.

Similar cars

18 other 2023 Audi A4 S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £19,355 to £31,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2023 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 35,636 miles. Price: £19,723, £2,276 less than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a4-2023-0d95dbfeb478
• 2023 Audi A4 S Line, 2.0 diesel saloon, blue. Mileage: 35,261 miles. Price: £20,300, £1,699 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/audi-a4-2023-07788b475282
• 2023 Audi A4 S Line, 2.0 diesel saloon, blue. Mileage: 34,433 miles. Price: £20,698, £1,301 less than this car. Dealer: CarSupermarket.com Hessle in Hessle. AskCar page: https://askcar.co.uk/car/audi-a4-2023-2f75df8de89d

• The nearest: 2023 Audi A4 S Line, 2.0 diesel saloon, blue, under a mile from this car. Mileage: 33,156 miles. Price: £22,249, £250 more than this car. Dealer: Days Motorpark in Swansea. AskCar page: https://askcar.co.uk/car/audi-a4-2023-11edade14694