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. Wiper blades should be renewed annually.
To remove a windscreen wiper blade, pull the arm fully away from the screen until it locks. Swivel the blade through 90º, then lift it off the pivot peg on the wiper arm. Don’t forget to check the tailgate wiper blade as well which is removed in the same way.