Why can't the left rear door window of the Passat Lingyu be raised or lowered?

[FranciscoMarie]

Here are the reasons why the left rear door window of the Passat Lingyu cannot be raised or lowered: The window lift motor is damaged or there is poor contact in the electrical wiring harness. If there is a burnt smell or noise inside the door panel when holding down the window button for a long time, it may indicate damage to the window lift motor components. Additionally, if the components overheat for some reason, the motor may enter an overheating protection state, which can affect the window's ability to raise or lower. Solutions for the window not raising or lowering: In this case, it is recommended to visit a car 4S shop or auto repair shop to replace the window lift motor. Alternatively, wait for the motor to cool down and then re-match the window regulator to restore functionality.