Hi, I have a problem with a 2008 ford c-max 2.0 tdci. rarely when the ignition is switched on the ignition and clock-radio disappears and the starter motor does not turn. at first glance it would seem to be a battery problem, already replaced, rebuilt and cleaned all the main earth cables, reinforced power supply to the fuse box-rele' engine compartment, checked the starter block. even while the car is running sometimes the ignition and radio switch off but in this case the engine does not stop.