A visual inspection is usually sufficient to diagnose whether this is the culprit.
Car door water seal.
The configuration of door weatherstripping will vary from vehicle to vehicle but there is generally a continuous strip that runs around the perimeter of the door to seal the door to the body opening.
Those long strips of rubber running along the edges of your car s door frames keep moisture and noise out also known a weatherstrip a door seal is typically made of rubber on the outside and foam on the inside.
The rubber seal around the edge of the door can also sometimes be a cause of leaks.
If the weatherstripping is not 100 replace it.
Because water can get past window seals and inside the doors when it rains or when you wash your car and the water is supposed to exit through drain holes at the bottom.
Try having an assistant aim a hose at the door body junction while you check for leaks inside.
If the seal gets damaged or dries out water will track down the front of the door and into the car.
It provides a solid barrier against wind rain snow and moisture.
Seals keep car doors closed tightly make sure windows fit snugly into place protect the contents of your trunk from dirt and let you enjoy a gorgeous sunroof without worrying about leaks.