Replaced switch report.
I replaced the switch. Got the part a MB dealer. The said the part is a common problem less than $20.
I was able to get to the switch but unscrewing 4 screws. 2 big plastic screw and 2 regular screw to drop the pannel just above the breaks. Very easy.
I was able to access the switch without disconnecting any wires.
Something worth noting. The new switch has a longer strock then the old one. At first I though the dealer give me the wrong part. However the switch could be inserted by depressing the breaks (the breaks have to be depress while the switch is install).
Also with noting if you want to check the break light the keys have to be in. It scared me when I tested the breaks with out the keys and there was not lights.
My fingers are cross 500 miles with out the ets/esp lights comming on.
proof this site and you folks same me money so I can have the cars I can't really afford.
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Now I have heater light problem but that is a different thread.