MORE ROT WORRIES

Look for rust bubbling around the front and rear screens and the side windows. And check that water isn’t entering the cabin via the front screen and bulkhead area; it needs to be caught early to avoid expensive repairs. The tough chassis rarely succumbs to serious corrosion, although it needs checking for off-road damage and for any signs of rust around the body mounting points. And while underneath look for a rusty fuel tank on the pre-1990 W460 models; an original steel replacement is a hefty £860.

Check that damp hasn’t crept in. Replacement trim is out there, but it isn’t cheap.