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: 34,433 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 160 bhp
• Gearbox: Automatic (S tronic)
• Drive: Front-wheel drive
• Colour: Blue
• CO2: 137 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 34,433 miles, this 2023 Audi A4 S Line has covered about 6,100 more miles than other 2023 Audi A4 cars. The dealer is asking £20,698, which is £82 below the AskCar estimate of £20,780. To work out the AskCar estimate, we analyse UK dealer adverts for 1,427 Audi A4 cars across different ages and specifications. This car was first seen in our listings data 8 days ago. Its advertised mileage matches the government's MOT record. You can find this car at CarSupermarket.com Hessle in East Riding of Yorkshire. 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: £82 (under 1%) under the AskCar estimate of £20,780.

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 8 days.

Price history

AskCar first saw this advert on 27 October 2026 at £20,698. 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 9 September 2026 (nearside rear tyre tread depth below requirements of 1.6mm 1.4mm) and passed 1 day later, on 10 September 2026.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge 2.4mm and nail in tyre.

Mileage at that test: 32,147 miles, which matches the advertised 34,433 miles.

Advertised mileage is about 6,100 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, blue. Mileage: 35,261 miles. Price: £20,300, £398 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, white. Mileage: 35,626 miles. Price: £21,999, £1,301 more than this car. Dealer: Days Motorpark in Swansea. AskCar page: https://askcar.co.uk/car/audi-a4-2023-e86ece71c515
• 2023 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 35,636 miles. Price: £19,723, £975 less than this car. Dealer: Carbase Bristol in Bristol. AskCar page: https://askcar.co.uk/car/audi-a4-2023-0d95dbfeb478

• The nearest: 2023 Audi A4 S Line, 2.0 diesel saloon, blue, 45 miles from this car. Mileage: 33,006 miles. Price: £20,998, £300 more than this car. Dealer: CarSupermarket.com Barnsley in Barnsley. AskCar page: https://askcar.co.uk/car/audi-a4-2023-dafffd80ef25