Hi still fairly new to this site and looking some info..
I have recently bought a 05 mondeo 2.0 tdci euro 4..
I have noticed that the car sometimes produces black smoke.. Seems to be when pulling away for a road end and seems to clear as rpm increases.. Also if car is left to idle for a few mins(approx 5-10) when you go to pull away again there is a cloud of black smoke.. Other than this the car appears to drive well and pulls well.. No management lights etc on dash..

Any thoughts or suggestions as to what could be wrong..

I had been thinking possible spilt in intercooler hose but thought this would give smoke all across the rpm range..could it be a faulty egr valve and is there any way to test this