The battery is brand new, because of the drain. He checked the alternator and he said its fine. I am sure he looked at the starter, but i will ask him. He thinks it might be somewhere in the wiring, and that a mercedes dealer might have more of wiring diagrams.

I just dont trust going to dealers because they will charge you for everything they can possibly charge , and since we cant pinpoint the problem, i dont want the dealer to come back to me with an enormous bill telling me to change this and that , before diagnosing the exact problem.


I have my finger crossed, someone has gone through this, specially with a w140, and can help give me a good lead.

I apprecaite everyone's advice and help.