There is a button at the top of the left lever of the steering wheel that can be pressed to spray water. Some Mercedes cars are designed differently from others. Some Mercedes models use the chest stop design. The Mercedes has a gear shift on the right side of the steering wheel. Most cars have a lever on the right side of the steering wheel that controls the wipers and sprinkler system. Because some Mercedes-Benz models have the gear shift lever on the right side, some Mercedes-Benz models have the water spray function integrated on the lever on the left side of the steering wheel.
The car glass water switch is located on the operating rod on the right side of the steering wheel, and the operating rod can be sprayed with water by moving in its own direction. The lever of different models is different, but the water spraying operation is the same.
Do not run the windshield washer continuously in a few seconds, and do not run the washer when the washing liquid storage tank is empty, which will cause the washer motor to overheat leading to high maintenance costs.