BMW Z8 Window Regulator Replacement Cost.
Learn More About Window Regulator Replacement Cost
Door window regulators can fail but the door window motor may continue to operate as expected. In this case, if the motor tests okay and is available separately, only the regulator needs to be replaced.
A failing door window regulator can cause a window not to open or close. The window could also make a lot of noise or stick intermittently. Lastly, the window glass might drop inside the door.