To check the quality of windshield wipers, you can start from three aspects: the condition of the rubber blades, working performance, and motor sound. First, gently touch the rubber blades with your fingers to check for hardening, cracks, or reduced elasticity-these signs indicate that the rubber strips are aged and need replacement. Second, test the operation under different speed settings and observe if there is skipping, abnormal noise, or incomplete wiping (such as residual water marks or streaks). Finally, pay attention to the motor's operating sound; abnormal noise may indicate rust or jamming of transmission components, and the wiper should be stopped immediately to prevent damage. For daily maintenance, It is best to avoid dry wiping, clean the debris on the rubber strips regularly, lift the wiper blades when parking to avoid exposure to the sun, and choose a model compatible with the original vehicle when replacing. High-quality windshield wipers should have flexible rubber strips, smooth operation, and quiet performance to ensure clear driving visibility during the rainy season.
