Originally Posted by
skarlet
Well today I was told that it is the "management control module" They had to order the part from Mercedes, surprise, surprise, $786 plus tax. 95% that it will be ready for pickup tomorrow.
Some call the PTCM the "engine management module" ,but I understand that they are around $1600.
And anyone who talks of "a short in the wiring" is a fool. The only SHORT that there could be, would be one caused by a rodent eating the insulation off wires - which DOES happen. If that is your problem, well, let's just hope not....
(Those who speak of "shorts" in wiring or electronics are demonstrating a total lack of expertise in electronics - to such people, any problem, particularly intermittent problems, are "shorts".)