Where is the car water drainage channel located?
2 Answers
In the plastic guide channel below the front windshield. Here is an introduction to the related content: 1. Function: The main function of the car body water drainage channel is to direct rainwater along the channel to the outside of the car, preventing water from entering the interior of the car body and the internal sheet metal structure. 2. Structure: The rear pillar water drainage channel of the car body is generally formed by welding the upper section of the rear water channel and the rear combination lamp mounting plate. The top is welded to the roof, the sides are welded to the outer panels of the side enclosure, and the lower part is welded to the rear panel. It has a certain cross-sectional shape, forming a water guide channel from the roof along the rear pillar to the bottom of the car body. In terms of structural function, it is required to direct water from the roof downward along this channel to ensure that rainwater does not enter the car body interior through the top, wire harness holes, or tail lamp mounting holes. When the rear door is opened, the entire appearance and structure of the water channel can be clearly seen, so there are certain requirements for its appearance and fit. 3. Components: Rainwater flows downward along this channel from the top, ensuring it does not enter the car body interior. The overlapping surfaces of the sheet metal are usually treated with adhesive after welding. The rear door opening is sealed with a sealing strip, and mounting holes for the tail lamp and wire harness are sealed with bosses and sealing gaskets.
The car rain gutter is mainly located at the junction of the roof and the windshield, which is the groove right at the bottom edge of the windshield when you sit in the driver's seat looking forward. I find this design particularly practical because it collects rainwater or car wash water flowing down from the roof and drains it to the ground through hidden small holes, preventing water from entering the engine compartment or seeping into the car's floor mats. If it gets accidentally clogged, say with accumulated leaves or mud, water can backflow into the car interior, soaking the floor mats and potentially corroding wiring. I've experienced this situation before, and cleaning it up was quite troublesome. I recommend cleaning it twice a year by flushing the drainage channels with a soft hose, which can help avoid major issues. The longer you drive, the more you'll notice these small details.
