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      10-30-2020, 08:48 PM   #15
autokunst
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Drives: 2011 335xi
Join Date: Sep 2018
Location: Wisconsin

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Quote:
Originally Posted by mayhs View Post
Just out of curiosity, how did you go about cleaning the drains?
I feel like I am forgetting some of the details. But I used nylon weed trimmer line and carefully pushed it through the drain lines. On the two front drains, I ran the line down from the top as far as I could get it. The drain holes are in the corners of the sunroof "gutter". I also pushed the trimmer line up from the front drain outlets behind the front wheel wells. For the rears, I pulled the side panels from the trunk to expose the drain lines. The lines have a 90 degree rubber elbow there. I pulled the plastic hose drain from the elbows and ran the trimmer line both directions (I think the left rear was where my clog was). After that, I tested by running some water from the gutter out all (4) corners, and they ran freely. The drain outlets "squint" down from a circle to a flat orifice when they exit, and I also pinched those open to make sure any debris could exit the lines while I rinsed them. Good as new!
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E90 - 2011 335xi "Gadget"
E36 - 1998 M3/4/5 "Snow Maker"
E9 - 1973 3.0CS "The Raven"
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