Wiper blades are something many bourgeois cut for granted...until they cutoff working. Checking them for wear and tear every six months Testament clinch that you Testament able to eye clearly provided you carry stuck in a rainstorm.
Instructions
1. Chalk up someone pour flood over your windscreen, or application your van's Mr., and turn on the wipers.
2. Listen for slapping, screeching or vibrating. Slapping process the rubber has torn from the arm. Screeching indicates there is friction between the glass and the blade. Vibrating means the blade is worn or not mounted on the arm correctly.
Examine the blades. Look for splits or gouges in the rubber, discoloration or ragged edges.5. If you see a filmy haze after wiping, there most likely is oil or road debris on the rubber. Cracked or hardened rubber will result in streaks when the blades attempt to remove water.
4.3. Stare at the wipe pattern. If you see a lace pattern, that means the rubber has bent too far.
Replace the whole blade or replace the rubber with a refill if any of these steps reveals damage.