What is the reason for the sunroof leakage in the Tank 300?
2 Answers
The sunroof leakage in the Tank 300 is due to improper sealing at the rear seam of the sunroof. Here are some details about car sunroofs: 1. Working Principle: The car sunroof acts as a natural air purifier, utilizing the principle of negative pressure ventilation. When the car is in motion, the airflow over the roof creates negative pressure inside the vehicle, which helps to draw out the interior air. 2. Function: It can assist in cooling the car. Opening all windows helps in dissipating heat from the interior. Similarly, by using negative pressure to exchange air, the sunroof allows outside air to enter the vehicle, expelling odors caused by sun exposure and ensuring more uniform and gentle air conditioning.
I've been driving the Tank 300 for over two years and have indeed encountered the annoying issue of sunroof leakage. The main problem lies in the drainage system. The four drainage holes are hidden at the ends of the guide rails and are particularly prone to getting clogged with mud, sand, and leaves. After a heavy rain last time, water dripped into the car. When I took it to the repair shop and had the headliner removed, I discovered that the right front drainage tube was kinked, causing water to seep back through the connection. I usually didn't pay attention to the sealing strips during maintenance. Under long-term exposure to the sun, the rubber cracked and aged, allowing water to seep in through the gaps during rain. Deformation of the guide rails is also a hidden danger. Frequent forceful closing of the sunroof can easily cause deformation, leading to poor sealing of the frame. Now I've learned my lesson. Every time I wash the car, I ask the technician to use an air gun to clear the drainage holes. Before the rainy season, I check the condition of the sealing strips myself, which has saved me a lot of trouble.
