What Causes Water Leakage Through Car Doors?

[WalterMarie]

Severe aging of the door's waterproof and soundproof sealing strip is a common issue, primarily occurring in older vehicle models. This problem is visibly apparent with identifiable leakage points, and the solution is simply to replace the aged sealing strip with a new one. Another cause could be clogged door drain holes. Doors are designed with drain holes located at their lowest points to allow water that enters the door to exit. If you notice excessive water accumulation inside the door, inspect these drain holes for blockages and clear them if necessary. Additional Information: Slamming car doors forcefully can damage both the door and the car body, accelerating the aging process of the door. Doors are connected to the body via hinges and limiters; frequent forceful closing can loosen these components, leading to the loosening of internal door parts as well.