Open the sunroof and hose a small amount of water along the drainage channels. If the water does not flow down the drainage channels. They are clogged. The usually point of clogging would be at the end of the channels where there would be a tube with a reed valve at the end. When debris or dust accumulates at the reed valve, they would clog up over time.
They are at all 4 corners of the vehicle, front is at the kick panels and rear would be at the wheel arches.
Wednesday, October 6th, 2010 AT 8:19 AM