What is the reason why the BMW 6 Series GT window cannot be raised?

[LorenzoFitz]

BMW 6 Series GT window cannot be raised due to aging and deformation of the glass rubber seal; the window lifting guide rail is too dirty or has foreign objects; below are the reasons and solutions for the BMW 6 Series GT window not being able to be raised: Motor and circuit failure: Low battery power; motor failure; window regulator failure; mismatched glass rubber seal; window lifting function is turned off. Aging rubber and foreign objects in the window glass: If the window glass can be lowered but not raised, or gets stuck at a certain position during the raising process, it is likely due to aging rubber in the window glass and the presence of foreign objects. In this case, the window glass rubber needs to be replaced, and the foreign objects need to be cleaned out. Method for raising and lowering the window: Hold the switch, release the button when the window is lowered to the desired position; lift the switch, release the button when the window is raised to the desired position.

[DelJace]

Last time I was driving my BMW 6 Series GT to pick up a friend when I suddenly noticed the rear window wouldn't go up. I got so anxious that I went straight to the repair shop. The mechanic said this is most commonly caused by a faulty window regulator motor, especially in older cars that have been driven for seven or eight years. It could also be due to foreign objects stuck in the track, like coins falling in or aging rubber seals deforming. Rainy days make it even more troublesome, requiring temporary sealing with tape. The most frustrating part is that this can happen right after replacing the battery, requiring a window initialization reset. I recommend against forcing it manually—it's best to visit a professional shop to read the fault codes with a diagnostic computer. After all, BMW's window system comes with anti-pinch protection, and improper repairs might trigger the safety mechanism.

[MacEvelyn]

A garage owner who has been repairing BMWs for over a decade told me that 80% of BMW power window failures are due to motor issues. German cars have high power and strong current, so corroded wire connectors or bent pins can cause poor contact. Additionally, deformed guide rails or rusted sliding tracks can also jam the glass. He himself has repaired many cases with these exact causes. Actually, those with good DIY skills can remove the door panel to check the fuse, located in the box under the dashboard on the driver's left side—just remember to refer to the manual for the correct fuse number. But honestly, it's better not to force things with such precise electronic systems. Last time I removed the door panel myself, I broke the clips and ended up with even higher repair costs.

[DiDeclan]

Experience sharing after 3 years with a BMW 6 Series GT: Window lift issues vary by situation. If pressing the switch yields no response at all, it's likely the lift motor is dead. If you hear the motor running but the glass doesn't move, it's definitely a guide rail issue or the cable has derailed. The most commonly overlooked scenario is the need for reset after system power loss—you can try initializing it yourself: Hold the window-up button until fully closed, then keep pressing for 10 seconds to reset the program. Also, a reminder: Avoid using high water pressure when washing car door seams, as it can flood and damage the window regulator wiring module—repairs cost at least two to three thousand yuan.

[JamesonAnn]

As a car modification enthusiast, I find this issue with BMW quite common. The window lift system mainly relies on a motor-driven gear rack and steel wire rail assembly. Over time, the lubricating grease can dry out and clump, like in my car which has run 120,000 kilometers. Additionally, the anti-pinch function being overly sensitive can cause false triggers—even a leaf stuck in the rubber seal can make the window automatically lower. I recommend regularly spraying rubber protectant on the rail sleeves for maintenance. In summer, avoid parking with the windows exposed to direct sunlight, as high temperatures accelerate part aging. If problems persist after repairs, check if the body control module is water-damaged, as this module controls the entire window system.