I have not had a chance to clean the underside of the X yet. Snowing like a son of a gun here. I will get under there one of these days with rags and de-greaser, especially if the light doesn't go out this week.
Thank you so much for the insight and help.

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'03 Black BMW E53 3.0i 110,000+ miles
'03 Black Mercedes-Benz W211 125,000+ miles
'13 White Mercedes-Benz W2o4 New