Why does the gap become larger after removing the door panel once?

[DiBarrett]

After removing the door panel once, the gap may become larger due to aging door seals or improper repair and alignment of the door gap. Here are the specific reasons: Aging door seals: If the door gap is large, replacing the door seal strip may solve the issue. A large gap could be caused by aging seals, which fail to provide proper sealing and cushioning. The quality of a door is mainly reflected in its anti-collision performance, sealing performance, and ease of opening and closing. Anti-collision performance is particularly important because, during a side impact, the buffer distance is very short, making it easy for passengers inside the vehicle to be injured. Improper repair and alignment of the door gap: If the repair shop did not fix the issue properly and the door frame remains deformed, the only solution is to have the repair shop realign it again.