I was once going on my ride when I discovered that my BMW E39’s window started rolling down and it was not able to roll back up. Window motor seemed to be working fine but I felt as if I had been caught on something. It might have happen that you are using the window and it is going crong crong crong and crong. When you manually touch the window of the car you will find you can move them manually. But as soon as you start having any symptoms, you should change your BMW E39’s window with the help of the manual you have been given.
You should take your own kit for replacing the rear window and you get that kit with your own BMW series vehicle. Now, you should start with opening the door. Take your screw driver and pop up the screw cover with its help. You have to use it to remove the door panel. You need to remove the under door light by prying it down from the edge closest to the front of the car. Further, just remove the wiring very carefully. Use a small screw driver and remove the window switch by just prying it up. Move ahead and pry down the door using 9 white door clips.
Lift the door up and down with all your force. As soon as the door clips are off, just pull, turn, push the door handle assembly through to the inside. Pull out the door cover up and down. Gently wiggle it out. There you will find a small wiring that you need to harness out carefully. There would be a black plastic on the post and remove that by squeezing the pliers on the post. Let it slide off. Here you need to replace the window regulator and here roll down the window about 80% down. This is done by using a torx T20 driver. Now, pull up the window and remove the bottom bolt using 10mm crescent wrench. Behind the soft plastic window, you will find a starburst shaped bolt. Reach behind the window and remove the bolt. Within the motor assembly; pull off the wiring harness. This is done by using Torx T25 and removes the Four Torx screws from the motor assembly. These screws are very easy to identify as they are pointed in right.
Further pull out the regulator assembly up and the bottom of it towards front of the car. Now, just replace it with new window regulator. After re arranging all parts back to the place with the new window regulator, just reattach the door of the window. Pull out all the three wires and have enough adhesive. Very firstly, re attach the speaker wire harness and then secure the door handle assembly using the screw and replace the cover. Finally reattach all the wirings and remount the switch and the light inside. In this way, you have just repaired your BMW E39’s window.
