What is the reason for the BMW 5 Series windows not automatically rolling up after locking the car?
2 Answers
Reasons why BMW windows cannot be operated with one-touch up/down: momentary disconnection of related components leading to function failure, abnormal door control module, malfunctioning window control button, damaged lifting motor, etc. If the function failure is caused by a momentary disconnection of related components, simply resetting the one-touch window function should resolve the issue. Gear positions: The one-touch window control has two gear positions. The first gear can be used to partially open the window, while pressing it all the way down will fully open the window. There will be a slight sound and feedback force, at which point the window will automatically roll down. Anti-pinch function: Generally, buttons with one-touch window control feature an anti-pinch function. For those who frequently transport children, it is advisable to purchase a vehicle with this feature. Additionally, always lock all four windows from the driver's control side while driving.
I've been driving a BMW 5 Series for several years and encountered an issue where the windows wouldn't automatically roll up/down after locking the car. Initially, I thought the key fob battery was dead, but the problem persisted even after replacing it. Later, I checked the iDrive vehicle settings and discovered the Comfort Access feature was turned off, which deactivates the automatic window operation via long-pressing the lock button. BMW's system requires manual configuration – once enabled, holding the lock button for a few seconds triggers the auto window function. If it still doesn't work after activation, it might indicate a control module malfunction or software glitch. Try resetting it: start the car, hold the window-down button fully for a few seconds, then pull it up and wait – this initializes the system. Also ensure all doors are properly closed, as the safety system halts operation when detecting obstacles. Regular maintenance is crucial; remember to manually close windows during rain to prevent water damage to the interior. For persistent issues, visiting a BMW dealership for professional diagnosis is the most reliable solution.