After a window glass is damaged, it should be replaced with a piece that matches the original curvature. It’s important to inspect the glass guide groove and the sealing strip for any signs of damage. Since windows may not fully return to their original shape after repairs, ensure that the glass can be easily raised or lowered. Additionally, check the tightness around the glass once the window is closed to maintain proper sealing.
When replacing the roof, apply a layer of conductive sealant around the press-fit area first. After welding, apply folded edge glue in the flow tank and at the joints. This helps ensure a secure body seal and prevents rust caused by water accumulation at the flange welds. When assembling the door, attach a continuous sealing isolating film to the inner panel below the window. If no sealed film is available, use regular plastic sheeting instead. Press and compact the film before proceeding with the interior panel assembly.
When repairing a door with a sealing flange, carefully restore the damaged flange to its original shape. After repair, perform a sealing test by placing a piece of cardboard on the sealing area, closing the door, and pulling the paper out. The force required to pull the paper indicates the quality of the seal. If too much force is needed, the seal is too tight, which may affect door operation and cause long-term deformation. If the force is too low, the seal is weak, leading to wind leakage. When replacing a door, make sure to apply edge glue on both the inner and outer flanges of the new door, and cover small stamping holes with base tape.
During car line repairs, all body holes and wire harness openings must be properly sealed. These seals serve not only to prevent leaks but also to protect the wiring harnesses. If a seal is damaged or if the harness moves inside the seal, replace the seal and secure the harness using the body hole and opening to keep it in place.
When replacing the entire body, in addition to the above steps, apply a thin layer of sealant (about 1 mm thick) to the lap joints and welds. Ensure the sealant is smooth without bubbles. Apply special folded edges where necessary. Coat the lower surface of the floor and front wheel cover with 3–4 mm of elastic and anti-corrosion coating. On the upper surface of the floor and front inner panel, apply soundproofing, heat-insulating, and vibration-damping film, then add insulating felt before finishing with carpeting or interior decoration. These steps significantly improve the vehicle's sealing performance, slow down body rust, and enhance overall ride comfort.
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