
The silver button on the lever to the left of the steering wheel: a light press activates the wipers, while a firm deep press triggers the washer fluid spray along with the wipers. Introduction to windshield washer fluid: Windshield washer fluid, also known as wiper fluid, is a cleaning solution specifically designed for automobile windshields. It is primarily composed of water, alcohol, ethylene glycol, corrosion inhibitors, and various surfactants. Functions of windshield washer fluid: Cleaning: Formulated with multiple surfactants and additives, it provides wetting, penetration, solubilization, and dirt decomposition capabilities for effective cleaning and stain removal. Anti-freeze: The alcohol and ethylene glycol in the fluid lower the freezing point, preventing freezing and dissolving frost. Anti-fog: It forms a monomolecular protective film on the glass surface to prevent fog droplet formation, ensuring clear driving visibility. Anti-static: After cleaning, substances adhering to the glass surface neutralize static charges, offering anti-static properties. Lubrication: The ethylene glycol content increases viscosity, reducing friction between wipers and glass to prevent scratches and provide lubrication.

I've been driving a Mercedes-Benz C260 for several years now, and cleaning the windshield has always been a smooth operation. The windshield washer system in Mercedes isn't activated by a separate button but is integrated into the wiper control stalk on the right side of the steering wheel. While driving, you just need to gently pull this stalk towards you, and the water sprays directly onto the windshield. Releasing it automatically triggers the wipers to make a few sweeps, completing the cleaning process. At first, I was a bit confused and mistakenly thought there was a separate switch, but actually, Mercedes designed it to be quite streamlined. It's important to regularly check that the washer fluid reservoir isn't empty—there's a blue-capped tank under the hood for filling with antifreeze washer fluid, especially crucial in winter to prevent nozzle clogging. The operation is simple and effortless, but try not to get too distracted by it while driving. Maintaining a clear windshield is key to road safety, and a quick check to ensure the system is functioning properly can give you much-needed peace of mind.

I work in auto repair and have serviced many Mercedes-Benz vehicles. The design of the C260's windshield washer activation is quite practical—it doesn't rely on a button but is controlled by the lever on the right side of the steering wheel. Simply pull the lever backward to activate both the washer spray and wipers simultaneously. Mercedes designed it this way to reduce dashboard button clutter and minimize driver distraction. If the lever doesn't move or respond, don't force it—it might indicate a faulty pump or an empty reservoir. Regularly check the washer fluid level and ensure the nozzles are unobstructed. During rainy seasons, top up with more fluid and use dedicated cleaner to prevent clogging from impurities. Weak spray pressure usually stems from aging hoses or blown fuses. Proper maintenance ensures clearer visibility while driving and reduces risks.

When I first got my Mercedes C260, I was also troubled by this issue, but operating the windshield washer fluid is quite straightforward. On the right side of the steering wheel, locate the wiper control lever, hold it and gently pull it backward, and the water will spray out. Don’t worry about making mistakes the first time; just practice a few more times and you’ll get the hang of it. Remember to check the manual or online videos to confirm the position. Adding windshield washer fluid is simple: open the hood, find the small blue reservoir cap, and fill it up. Choosing a good brand of cleaning fluid can better protect the glass. The system is generally reliable, but regular checks ensure normal operation.


