Hi all. I have an '03' reg Freelander Serengeti Td4. The car has been dealer/ competant garage serviced since new at all appropriate intervals and has now done 140,000 miles ( just to let you know its not been neglected).
From time to time when pulling away and steady throttle sometimes I am experiencing a rattle from the engine (sounds like a kid quickly dragging a stick across railings) , the engine stutters slightly and emits black smoke from exhaust. This has been happening for a while now and it is ocassional.
What is causing this? All help greatly appreciated. Thanks