THEY STATE THAT MY SUNROOF HAS A VENT FOR WATER & DRAINING IN THE FRONT OF CAR 2006 bmw x5 3.oi
Water that collects in the channel around the sunroof drains through vents or lines to the ground. Same situation around your windshield, doors, trunk. If debris (like leaves) clog those drain lines up, the result is water can't drain from those channels. Someone needs to clean those lines out, even a metal coat hanger will help.
There should be a drain tube along the a-pillar, you will see the beginning of the tube in the front left corner of the sunroof. An easy way to clear it is to send some stiff wire down the tube and loosen all the dirt in there.
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