The windshield assembly refers to the group of components you see in your windshield. The components in your BMW windshield work for a primary purpose and that is to clear any obstruction which can be present on your windshield and might affect your visibility and focus on the road. Since the windshield area is where most drivers are positioned, it must be the safest and secured area. The windshield serves as a protective layer that enables the driver to see the road clearly because of its see-through glass composition. Your windshield wiper, blade, arm, switch, and motor are the main components which compose the assembly. The blade acts like sweepers which sway back and forth of your windshield to clear away objects that hinder your vision; the wiper arm connects the blade to the motor, while the windshield wiper motor is the one which generates power to operate the blade and arm. The switch is the control panel which you usually turns on to start the clearing process. As mentioned, your BMW windshield wiper motor is the one which accumulates energy or electrical energy to power the blade and the arm. Without it the entire parts will not move and will be useless. Since your BMW windshield wiper motor is the one which actively gathers electric force to generate movement of the arm and the blade, it is the one which is mostly found defective. The most common complaints about wiper motors are their non-resistance to dirt and corrosion. If you by any chance, incurred a circumstance as such to your wiper motor, you must have it checked to a mechanic or if not, don't wait for it to disintegrate the assembly and get yourself a new BMW windshield wiper motor replacement. You can get it in an affordable price yet standard quality through our company website.