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From digest.v7.n1300 Fri Mar 13 12:23:35 1998
From: Phil Marx <>
Date: Fri, 13 Mar 1998 10:23:38 -0500
Subject: re: Sunroof Drains

Justin asked:
>How do you test the sunroof drain to make sure they're not clogged up? My
>325i has a wind deflector, do I have to remove it to do this?

Steve D' responded:
>Outside of using a cystoscope, compressed air and a "needle tip"
>blow gun should do the trick. SD

Good advice, with a word or caution:
There is a possiblity that compressed air and a clogged drain tube can result in "blowing off" the drain tube somewhere deep in the bowels of the automobile where you may not want to, or may not be able to go. Also, some of you may not have compressed air available to you. Try dribbling water down the drains, one drain per corner, by pooring a little cup-full down the gutter. Tilt the car if you have to to direct the water properly, like for the back drains. If no water comes out, the exit varies with model but should be on the exterior of the vehicle (!?), then try using a non-invasive tool to roto-root the drain. It has been previously suggested on this digest that weed-eater cord works well.

  • -Phil Marx BMWCCA #6021
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