What is the reason for water ingress in Volkswagen Lavida on rainy days?

[LawsonAnn]

The reason for water ingress in Volkswagen Lavida on rainy days is poor sealing of the rubber strips on the car doors. The door sealing system mainly targets two areas: 1. Sealing of the door opening area: This is primarily achieved by an inner door seal strip installed around the door opening flange on the side panels or an outer door seal strip installed around the door. Some models have both seal strips, while others use only one, depending on performance requirements or cost targets. 2. Sealing of the window area: This is mainly accomplished by the glass guide channel seal strip on the window frame and the inner and outer window sill seal strips. These also ensure the smooth up and down movement of the window glass. Typically, the glass guide channel seal strip is the most demanding and structurally complex part of the entire vehicle sealing system.