The windshield wiper and blade assembly are to be checked regularly for signs of damages and defects such as the presence of loose parts, damaged or broken blade parts, and worn out blades and rubber part of the wiper. Dirt can accumulate on the wiper blades and reduce its ability to clean hence it has to be cleaned using a mild detergent every sometimes. The wiping mechanism of the windscreen can also lead to unfastened bolts, nuts and other fasteners on the vehicle and as such, when inspecting the wiper blades, they should be tightened as required. If the wiper blade elements get split or has lost most of its contact area through wearing or gets weird when rolled back into shape, they should be replaced with new ones. To install the wiper blade/arm assembly, push the wiper blade to the wiper arm and then release the connector, place the wiper blade assembly over the retaining stud of the windshield wiper arm and snap it into place. Bend in and out the piece of metal by using the needle-nose pliers, then remove the old element and replace it with a new one by using the metal clip in order to lock the new element. If it is a multiple-bank element, pinch the tabs at the end to slide the element out of the blade assembly and then take the new element and the old one and compare for length and design if necessary. Insert the new element in the position which, then, will lock into the right place; replace the blade assembly on the arm, moisten the windshield and test the operation.