2018 Audi A4 2.0 TDI S Line

Overview

• Make: Audi
• Model: A4
• Trim: S Line
• Version: 2.0 TDI S Line S tronic 4WD Euro 6 (s/s) 4dr (187 bhp)
• Year: 2018
• Mileage: 74,552 miles
• Fuel: Diesel
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (S tronic)
• Drive: Four-wheel drive
• Colour: White
• CO2: 118 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Audi A4 S Line is advertised with 74,552 miles on the clock. Its asking price of £12,800 is £898 below the AskCar estimate of £13,698. The AskCar estimate uses 1,428 UK dealer adverts for the Audi A4, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records 3 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall BMW Scunthorpe, based in Scunthorpe. 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: £898 (6%) under the AskCar estimate of £13,698.

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 1,428 priced Audi A4 adverts across different ages and specifications, as of 2 November 2026.

A 2018 Audi A4 with the 2.0 diesel engine is typically advertised at £12,200: the median of the 48 for sale on AskCar, as of 2 November 2026.

Time on sale

AskCar first saw this 2018 Audi A4 advertised 3 days ago. About half of 2018 Audi A4 cars are gone from sale within a month of being advertised: 73 of the 145 first advertised between 11 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 30 October 2026 at £12,800. 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 2 November 2026: valid until 17 February 2027.

It failed its MOT on 7 February 2026 (nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed 2 days later, on 9 February 2026.

Advisories at the latest test: nearside front lower shock absorbers has a slightly worn bush; offside front lower shock absorbers has a slightly worn bush.

Mileage at that test: 65,455 miles, which matches the advertised 74,552 miles.

Advertised mileage is about 400 miles lower than the median mileage of a 2018 Audi A4 on AskCar.

Similar cars

6 other 2018 Audi A4 S Line 2.0 diesel automatic saloons are for sale at UK dealers, from £8,975 to £16,990, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 68,830 miles. Price: £12,995, £195 more than this car. Dealer: Saline Motors in Dunfermline. AskCar page: https://askcar.co.uk/car/audi-a4-2018-eb54952af002
• 2018 Audi A4 S Line, 2.0 diesel saloon, grey. Mileage: 83,000 miles. Price: £12,995, £195 more than this car. Dealer: Cars of Conwy in Colwyn Bay. AskCar page: https://askcar.co.uk/car/audi-a4-2018-af10c433b511
• 2018 Audi A4 S Line, 2.0 diesel saloon, silver. Mileage: 86,504 miles. Price: £12,950, £150 more than this car. Dealer: Campbell Trade Sales in Armagh. AskCar page: https://askcar.co.uk/car/audi-a4-2018-e865bfbf0117

• The nearest: 2018 Audi A4 S Line, 2.0 diesel saloon, grey, 60 miles from this car. Mileage: 91,400 miles. Price: £11,500, £1,300 less than this car. Dealer: Freeman Motors in Oldham. AskCar page: https://askcar.co.uk/car/audi-a4-2018-9dff009210b5