
Press the button at the top of the control lever to activate the windshield washer function. The wipers will automatically operate at a certain frequency. The higher you turn the knob at the end of the light control lever, the faster the wiper frequency will be. The "0" on the lever indicates the wiper is off; when moved to this position, the wipers will turn off. Press the rear wiper activation button in the middle of the lever to turn on the rear wiper.

When driving the GLC300, the wiper operation is primarily controlled via the lever on the right side of the steering wheel. Gently push the lever down one notch to activate the intermittent wiping mode, and rotate the knob next to the lever to adjust the interval duration. Push it up one more notch for low-speed continuous wiping; pushing it to the highest position enables high-speed continuous wiping. To clean the windshield, pull the lever toward yourself, and the washer fluid will spray automatically while the wipers swipe a few times to clear visibility. The automatic wiper function is highly practical—the sensor detects rainfall intensity and automatically adjusts the wiping speed and frequency, making rainy-day driving more worry-free. Remember to regularly check the wiper fluid level; when the dashboard indicates a low level, refill it promptly to avoid dry wiping, which can damage the glass. Replace wiper blades immediately if they show signs of aging or cracking, as blurred vision in the rain increases risks. I always make a habit of turning off the wiper switch before parking to protect the motor's lifespan. Operate the lever gently in daily use to avoid frequent switching, which can drain the battery. Before driving in the rain, I test the spray function to ensure everything works properly.

When driving a GLC300 on rainy days, I use the windshield wiper control stalk to operate it. The stalk is located on the right side of the steering wheel. Pushing it downward activates the intermittent wipe function, which works great in light rain. For heavier rain, pushing it upward once or twice switches between low and high-speed modes. If the windshield gets dirty, pulling the stalk sprays water and cleans it in just a few seconds. The automatic function kicks in during drizzles, with the sensor adjusting the speed for convenience. I've found that operating it naturally without excessive force helps prevent part wear. If the operation fails, it might be due to a blown fuse or poor switch contact—check the dashboard indicators to confirm. Safety comes first in rainy conditions; if visibility is poor, it's best to pull over rather than rush. New drivers are advised to practice more to master the rhythm and avoid panic.

The operation of the windshield wipers in the GLC300 directly impacts driving safety. I always prioritize controlling the wiper settings while driving. The control lever is located below the right side of the steering wheel—push it down for intermittent mode and up for continuous wiping. During rainy conditions, promptly activating high-speed wiping helps maintain clear visibility. The automatic function allows sensors to adjust the wipers, preventing distractions. The operation is simple yet reliable, with a pull of the lever activating the washer fluid to clear away dirt. If the wipers fail to work, it's essential to stop and inspect them immediately. Regular maintenance habits ensure the system functions properly.

If the wiper operation of the GLC300 encounters issues, here's how I resolve them: First, check if the fuse is blown when the control lever shows no response when pushed or pulled; if no water sprays out, inspect the wiper fluid and nozzle blockages. For daily operation, pushing the lever downward activates the intermittent mode, suitable for light rain, while pushing it upward engages the high-speed mode for heavy rain. If the automatic function fails, it might be due to dirty sensors—gently wiping them can restore functionality. For a loose control lever or unusual motor noises, seek professional inspection.

I drive a GLC300 and prioritize wiper to ensure smooth operation. Check the wiper blades weekly for cracks and ensure they have normal elasticity; top up the wiper fluid when low to guarantee unobstructed spraying. Operate the control lever smoothly to minimize mechanical wear. Keep the sensors for the automatic function clean to maintain high sensitivity. When replacing wiper blades, push out the old ones and securely install the new ones. Spray water for lubrication before operation to reduce the risk of dry wiping.


