What causes the car door handle to open unsmoothly?

[DeMaddox]

Reasons for the car door handle opening unsmoothly: 1. The position of the pull wire is inappropriate: This makes it more laborious to open and close the door. 2. There is significant friction between the vehicle's door handle lock and the lock post: This also makes it more laborious to open and close the door. Prolonged use of the door leads to poor lubrication, making the door harder to open. Additional information: The quality of a car door is mainly reflected in its anti-collision performance, sealing performance, ease of opening and closing, and of course, other functional indicators. Anti-collision performance is particularly important because during a side collision, the buffer distance is very short, making it easy to injure the occupants inside the vehicle.