
Mercedes-Benz can use ordinary windshield washer fluid. Introduction to Mercedes-Benz: It is a top-tier luxury car brand launched by Mercedes-Benz, a subsidiary of the German Daimler Group. Another founder of Mercedes-Benz, Gottlieb Daimler, invented the world's first four-wheeled automobile. Since then, the world has changed. In June 1926, Daimler and Benz merged to form Daimler-Benz AG. Purpose of Windshield Washer Fluid: Commonly known as car windshield cleaning fluid. It is a consumable in automotive use. High-quality car windshield washer fluid is mainly composed of water, alcohol, ethylene glycol, corrosion inhibitors, and various surfactants. Car windshield washer fluid is commonly referred to as glass water.

I've been driving a Mercedes-Benz C-Class for three years and always used windshield washer fluid bought from supermarkets. Actually, regular washer fluid works just fine, just make sure to choose the -30°C antifreeze type in winter. The original manufacturer's washer fluid costs over 80 yuan per bottle, but I've tried domestic brands priced at just over ten yuan and found the cleaning effect to be no different. However, stay away from those unverified products as water scale can clog the nozzles. Last time, my neighbor's S-Class had its washer pump burn out and it cost over 800 yuan to repair. Also, you can use windshield washer concentrate diluted with water, but remember to use purified water as tap water causes scale buildup very quickly. A car wash attendant once told me that Mercedes nozzles are quite fine, so it's recommended to use professional cleaner to flush them every six months to prevent misaligned spray angles that could affect visibility.

When I first got my GLC, I was also puzzled about the windshield washer fluid. The technician at the 4S store told me there's not much to fuss about—just focus on two key parameters: freeze protection and cleaning power. In northern regions where temperatures drop below -10°C, a -30°C antifreeze formula is essential, while a standard one suffices in the south. I bought a pack of 6 bottles online for just 35 yuan. When refilling, I noticed Mercedes' thoughtful design—the funnel-shaped filler neck makes it spill-proof even for the clumsiest hands. A word of caution: don’t overfill it; leave about 2 cm from the top, or it might slosh out on bumpy roads and damage the paint. Also, remember to regularly clean tree sap off the wiper blades, as mixing it with low-quality washer fluid can speed up rubber deterioration.

A friend who runs an auto repair shop shared a secret with me: Mercedes-Benz windshield washer fluid is basically the same formula as regular car washer fluid. However, the OEM fluid comes with wiper lubricant, which is more friendly to the rubber blades of frameless wipers. I've tested it myself—adding Mercedes-specific lubricant additive to a ¥20 supermarket washer fluid achieves similar results while saving half the cost. In summer, avoid using fluids with excessive alcohol content as they evaporate too quickly. One thing to note: if you hear the motor spinning without pumping when spraying, the filter screen might be clogged. Use a needle to clear the spray nozzle—never force it or you might break the nozzle.


