All, This beautiful sunny morning, I was smiling widely and checking on my less than a week old beauty, testing the electronics, power windows and detailing the interior. Out of a sudden, my car decided to seek some bonding and attachment from her new owner. Rear Passenger Power Window gone south and adamantly sitting down there despite the motor is clonking trying to lift it up. Isn't sure what exactly could cause that. As from the clonking sound, I am guessing the motor is still operating but perhaps the regulator has reached its toll. (I could be wrong)As a temporary solution, I have pulled the mirror up and placed a support underneath. However, I want to give her the attention she's seeking. Has anyone faced this before? HELP. FYI, my model is 523i(1997)tee