China Naming Network - Eight-character Q&A - Mercedes-Benz w2 1 1 heater pipe has abnormal sound.
Mercedes-Benz w2 1 1 heater pipe has abnormal sound.
It is the noise from the blower.
The abnormal sound of the car heater is caused by the noise of the blower. Most of the noise of the blower is caused by poor bearing lubrication, and there may be foreign objects in the blower. For poorly lubricated bearings, only a part of lubricating oil or grease needs to be added. Car warm air is to let the engine cooling water flow through a heater core, and then use a blower to blow cold air through the heater core to heat the air, thus increasing the temperature inside the car.