BMW 5-Series - Pictures

if you’re considering a manual model, look out for clutch wear. Juddering when pulling away is a tell-tale sign. Knock £400 off the price for a new clutch.

Overheating, even for only short periods, can seriously damage a 5-Series powerplant. Always check coolant levels, and look for oil deposits in the tank.

Make sure the digital displays are visible and that all warning lights come on and then go off on start-up. Ill-fitting trim could also signal previous difficulties.

A leak in the oil cooler under the radiator can damage the gearbox. So with the engine off and cold, feel under the radiator for traces of oil. A repair will cost £300.