For replacing the glass, it has to be figured first how it will be taken out. Even though it is shattered into countless pieces, the glass would have to be removed from the edges before installing a new one. For a door glass, the door panel has to be removed to access the mechanism that moves the window up and down. The glass is attached below. The windshield replacement and rear window glass requires the trim and the rubber gasket to be removed. The rubber gasket has to be replaced with a new one as the new one is installed. The car manual will be of help for removing and replacing the glass.
Car manufactures line the interior of the trunk with carpet. Especially the floor of the trunk. Lift the carpet and look for condensation, corrosion, welded panels and color differences relative to the body. This may indicate improper repair of the rear of the vehicle after an accident.
As a windshield installer for the past thirty five years, let me give you three good reasons not to repair your windshield. As windshield repair is a gimmick in my opinion.
This is true only if you want to overpay. There are windshield crack repair specialists that offer fast and affordable service, and they often come to your home or office to fix auto glass repair your windshield while you work.
If a rock hits your windshield while you are driving when it is already cracked, this can cause it to shatter too and you will not be able to see the road. Dings and scratches generally won't do this but there is always that risk factor that you have to be cautious about.
Sometimes the weather stripping or window channel is torn and falling apart. This can jam the window or prevent it from moving the way it should. Also look for objects that might be jammed into the window path. There may be too much friction between the glass and the channel. You can lubricate the channel with silicone spray.
Thread the repair tube into the suction cup tool since the suction cup is directly over the damaged area. You may need to screw it tightly but don't use any tools, just your hands. The proper alignments of the tools are very essential in repairing windshield, which is why you have to check from inside the car if the rubber is directly on the top of the damage area. Now you have to open up the supper tube and add it to the repair tube. Add drops of repair resin and then put a film underneath the resin and let it dry for ten minutes.