What Causes the Sunroof Leakage in Volkswagen Tiguan L?
1 Answers
Solutions for Volkswagen Tiguan L Sunroof Leakage: 1. Regularly clean the drainage outlets; approximately once a year, clean the nipple of the drainage outlet. 2. Alternatively, you can cut off the nipple of the drainage outlet, which can resolve the issue permanently. There are three common reasons for sunroof leakage: 1. The sunroof drainage outlet is clogged, causing rainwater to accumulate and gradually seep into the car; 2. The sunroof sealing strip is damaged, leading to poor sealing and allowing rainwater to enter the car; 3. There are gaps in the sunroof frame, causing rainwater to seep into the car, which usually occurs during heavy rain. According to after-sales service advice, you can systematically eliminate these factors. First, check for water stains on the ceiling near the sunroof. If there are no water stains, you can preliminarily rule out reasons 2 and 3. Then, determine whether the first reason is the cause. Find a clean surface, open the sunroof, and pour water from a bottle into the grooves around the sunroof to observe whether the water drains smoothly. If the water does not drain smoothly, and no water or only slow drainage is observed on the ground near the front tires, it indicates that the drainage pipe is clogged. In this case, you need to clean the drainage pipe, remove any debris, and test the drainage again. Here’s a useful tip: if you often park your car under trees outdoors or in dusty areas, you can clean the drainage holes yourself approximately once a year. This can effectively prevent similar issues from recurring. Additionally, try to avoid parking under trees or in dusty areas for extended periods. It’s recommended to clean the drainage outlets and the grooves around the sunroof approximately once a year.
