Guys, I need some more info on this Idle Speed Control Actuator - this is the term my mech gave me. My car has the erratic idling problem and one of the potential sources could be this unit which apparently contains lots of other components which may be at fault. What is this part, is there a part number and can I get it cheaper (ebay? or others) than at a main MB dealer. I am coming to UK for a month+ this weekend and so I would like to take the opp to obtain it cheaper (than Australia) if possible. (My 1996 C220 came from UK originally) THanks