I have a 2003 Mercedes C Class that has an intermitting starting problems. The ignition turns and the relevant detail appears on the cluster but subsequently the car does not start. The starter does even make a sound nor does it even crank the engin. When I try and jump start the car from another car...nothing. However when I kick start the car it starts. I suspect that there maybe a loose connection from the battery to the starter (had battery check and found ok). Some one please help...