Thanks, Skippy, I will check that!

I just added this car to my alldatadyi.com account and see the wiring diagram. It shows the brown ground wires, on both sides, coming right out of the headlight boxes and then attached to the engine compartment. I am going to take them off and clean them. That could be an issue also.

I will also check the dimmer switch.

Thanks again,
Paul

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2005 C320 4-Matic
85 300TD wagon with the third seat; I am slowly restoring it.
99 E300 TD