Check the condition of the wiper blades; if they are cracked or show any signs of deterioration, or if the glass swept area is smeared, renew them. For maximum clarity of vision, wiper blades should be renewed annually, as a matter of course.
To remove a windscreen wiper blade, pull the arm fully away from the glass until it locks. Swivel the blade through 90º, then squeeze the locking clip
Slide the blade out of the arm’s hooked end, disengaging it from the wiper arm, taking care not to allow the wiper arm to spring back and damage the windscreen.
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