What is the reason for water leakage from the passenger side of a Porsche Cayenne?

[LaDallas]

Water leakage from the passenger side of a Porsche Cayenne is likely caused by a door leak. If the window regulator has been replaced, it may be due to improper sealing of the door waterproof membrane after the replacement, as the membrane needs to be peeled off during the regulator replacement. If the waterproof membrane is not properly sealed, heavy rain can cause water to enter the car. You can perform the sealing work yourself or replace the waterproof membrane. Relevant information about car doors is as follows: 1. Introduction: A car door provides access for the driver and passengers and isolates external interference. It also helps mitigate side impacts to some extent and protects the occupants. The aesthetics of a car are also related to the design of its doors. 2. Criteria for a good car door: The quality of a car door is mainly reflected in its anti-collision performance, sealing performance, ease of opening and closing, and other functional indicators. Anti-collision performance is particularly important because, in the event of a side collision, the buffer distance is very short, making it easy for passengers inside the car to be injured.