Before installing the new auto glass to remove all old adhesive from the surface of the car body. After removing the old glue, you need to completely clean the surface with alcohol or solvent. After prepare the surface for further work with again a solvent or alcohol. Follow the instructions in the new glue. Particular attention should be paid at the time of the adhesive, in order to know how long you can adjust the position of the glass. Do not touch skimmed joint. Once the adhesive is using a suction cup, bring new automotive glass to the car. 
Hold the glass evenly, until the closing surfaces. Once you've installed the glass, leave the car for a while and did not bother him. The time it takes to keep the car pointed in the instructions to glue. You should not shut the door for a while, since it is only glued glass can fly because of excess pressure inside the vehicle cabin or the same glass can move. 
The first time the car should be used very carefully, until such time as the adhesive hardens completely and do not mate.
This procedure is able to hold almost any person, having a minimum of tools. If you do not expect to do the installation yourself, then give the glass and the vehicle installation specialists. They, in turn, will perform this procedure better and faster, without compromising your nervous system.