Originally Posted by 12'M3Freak
I took the cap off the coolant today to just check it. I noticed brown stuff floating around in there. Anyone ever see this or know what it is? No, I didn't crap in there either. It is only a year old. Guess I will have to have them flush it when it goes in for the yearly check.
Did any brown stuff stay glued on coolant cap?If no, you should be OK...But, if yes you have serious problems...First problem is bad water pump, and second problem is bad head gasket...very easy to check...good luck...