This kind of design can better prevent water from entering. Once the drainage hole is blocked, it will cause internal leakage. Suddenly one day you find that there is water under your foot pads, then it is possible that your skylight is leaking. , it may be that the heater water tank is leaking or other reasons. The skylight drains are located at the four corners of the skylight.
Solution to Polo sunroof leakage: For example, check the steps, open the C-pillar buckle, lower the handle on the rear door ceiling, and open the ceiling at the handle. Only a seam is needed. At this time, some yellow plastic pieces fall on the ceiling. , after careful inspection, it was found that the sewer pipe joint was completely aged and broken. Check the same aspects on the other side. The joints are broken and the ceilings on both sides are full of water. It can be determined that the two sewer pipe joints for rear drainage of the skylight are broken. Solution: Pull the sewer pipe out of the ceiling, find a plastic water pipe with an inner diameter similar to the outer diameter of the sewer pipe, apply glue, insert it, and cross-connect it. Pull the ceiling open until your hand can reach in, scald the other end of the plastic pipe with hot water, and put it on the drain outlet. Restored ceiling and C-pillar gussets. This method can quickly repair the sewer pipe joints without removing the ceiling.