Wiper Blade Selection and Replacement

Reportedly, 20 percent of all accidents result from impaired vision caused by a dirty or damp windshield. At any given time, industry estimates conclude that 50 percent of the windshield wiper blades on operational vehicles are beyond their functional lifespan. In general, wiper blades should be inspected every six months and replaced as soon as they diminish wet-windshield visibility. Vehicle manufacturers typically recommend replacing blades every 12-18 months. Fresh blades are such vital safety components that many European countries have laws that require replacing wiper blades every 12 months.

Wiper Diagnosis
Inspecting their operation can identify wiper problems. Use the car's squirter/mister if equipped and look for these effect and causes:


> Noise: friction between the blade and glass or the rubber has torn and slaps the windshield.


> Vibration: blade rubber worn or wiper improperly mounted to the arm.


> Banding in wipe pattern: cracked or hardened blade rubber.