Wiper blades wear gradually, so most drivers do not notice how bad visibility has become until a heavy downpour at night. The rubber hardens with sun, heat, and frost, and the edge loses its sharpness.
Most manufacturers suggest replacing them every six to twelve months.
Signs they are worn
- ▸Streaks or bands of water left on the glass
- ▸Juddering or chattering across the screen
- ▸Smearing in a fan pattern
- ▸Squeaking
- ▸Rubber that is split, cracked, or peeling away from the frame
Types of blade
Conventional blades have a metal frame with pressure points. Flat (beam) blades sit closer to the glass, spread pressure evenly, and resist ice build-up. Hybrid blades combine a frame with an aerodynamic cover. Check your car’s required sizes and fitting type, which often differ between driver and passenger sides.
Make them last
Clean the rubber edge with a damp cloth when you wash the car. Do not use wipers to clear ice or heavy frost — scrape the screen first. In very hot climates, lifting the wipers off the glass when parked can stop them sticking.
Do not forget the rear
Rear wiper blades are often forgotten and can be badly perished. Replace them at the same time. Top up the washer fluid with a screenwash that includes anti-freeze in winter.
CAUTION: This is general automotive information, not professional mechanical advice. Always follow your vehicle manufacturer’s specifications and service schedule, and have brakes, steering, tyres, and other safety-critical systems inspected by a qualified mechanic.