Gonna take a helluva switch to do the 50-80A DC reliably. I'd be opening the GP relay for a look-see, maybe some contact filing and/or resoldering. Also, make _sure_ that the purple line from the ignition switch doesn't bounce up and down, like from a going-out ignition switch, as that'll trip the rela¥ on as you drive. A shot of Deoxit into the ignition switch, the electrical part, would not go amiss.
You could try starting the car and then disconnecting the _little_ GPR plug, see if that makes a difference. If the problem goes away, then it might not be the relay's fault at all. -- Jim _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com