Drivers are recommended to replace the windscreen wipers every year or 20,000km to ensure effective operation and good visibility when it rains. This is especially so in Singapore where it is hot and humid, as your wiper's rubber deteriorates quicker when parked outdoors under the heat.

In order for the wipers to operate smoothly, the windscreen surface should be cleaned regularly. The accumulation of dirt and grime or insufficient water on the windscreen during light rain may cause the wipers to judder while in use. Regularly wiper your windscreen and wiper blades with a damp cloth will improve the lifespan of your wiper blades.

In summary, streaks, unwiped zones, fogging, judder and noise are tell-tale signs of dirty windscreen or worn wiper blades and requires replacement.