BMW 3-Series (E90 E92) Forum - View Single Post

328i · 02-08-2008, 12:00 AM

Try some clay, those look like calcium or some sort of mineral deposits which probably resulted from the water dripping off the building. You definitely want to take care of this asap as it can cause some nasty etching if it hasn't already.

02-08-2008, 12:00 AM	#6
328i Colonel 148 Rep 2,932 Posts Drives: E46 ///M Join Date: Jan 2007 Location: central NJ iTrader: (15)	Try some clay, those look like calcium or some sort of mineral deposits which probably resulted from the water dripping off the building. You definitely want to take care of this asap as it can cause some nasty etching if it hasn't already.
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