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: 33,006 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

This 2023 Audi A4 S Line is advertised with 33,006 miles, approximately 4,600 above the typical mileage for its age. Priced at £20,998, it is advertised £53 above the AskCar estimate of £20,945. To work out the AskCar estimate, we analyse UK dealer adverts for 1,427 Audi A4 cars across different ages and specifications. It first appeared in our advert records 4 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is CarSupermarket.com Barnsley, based in Barnsley. 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: £53 (under 1%) over the AskCar estimate of £20,945.

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

AskCar first saw this 2023 Audi A4 advertised 4 days ago. About half of 2023 Audi A4 cars are gone from sale within a month of being advertised: 130 of the 258 first advertised between 8 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 31 October 2026 at £20,998. 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 has had one MOT, on 4 September 2026, and passed.

There were no advisories at the latest test.

Mileage at that test: 27,528 miles, which matches the advertised 33,006 miles.

Advertised mileage is about 4,600 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: 33,156 miles. Price: £22,249, £1,251 more than this car. Dealer: Days Motorpark in Swansea. AskCar page: https://askcar.co.uk/car/audi-a4-2023-11edade14694
• 2023 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 32,424 miles. Price: £20,600, £398 less than this car. Dealer: Lmc Cars in Upminster. AskCar page: https://askcar.co.uk/car/audi-a4-2023-e0748888818f
• 2023 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 32,370 miles. Price: £24,727, £3,729 more than this car. Dealer: Vindis Group Northampton Audi in Northampton. AskCar page: https://askcar.co.uk/car/audi-a4-2023-e728f27553a0

• The nearest: 2023 Audi A4 S Line, 2.0 diesel saloon, white, 8 miles from this car. Mileage: 31,989 miles. Price: £20,449, £549 less than this car. Dealer: Motorpoint Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/audi-a4-2023-5ce524169f00