Coolant Hose A1665000091 For Mercedes W166 4-MATIC Engine OM642

The water pipe to the expansion tank plays a vital role in the automobile cooling system which has multiple functions such as conveying coolant, adjusting temperature and maintaining the pressure balance of the cooling system. 

1. Conveying coolant: The water pipe of the expansion tank is responsible for conveying coolant from the expansion tank in and out to ensure the circulating flow of coolant in the cooling system nor. When the engine is working, the coolant absorbs the heat generated by the engine and delivers it to the water receiving tank through the water pipe to achieve the cooling effect and avoid overheating of the engine.

2. Adjust the temperature: The water pipe of the auxiliary kettle receiving tank helps to adjust the temperature of the cooling system by conveying the cooling liquid. When the temperature of the cooling system is too high, the water pipe transports the hot coolant from the auxiliary kettle to the water receiving tank for heat dissipation, so as to reduce the coolant temperature and keep the engine in a suitable working temperature range.

3. Maintain the pressure balance of the cooling system: The water pipe of the expansion tank maintaining the pressure balance of the cooling system. When the engine is working, the coolant expands when heated, and the water pipe can help the cooling system release the coolant pressure by guide the coolant to the eto avoid damage caused by excessive system pressure.

Summary: The water pipe of the water tank of the expansion tank has multiple important functions in the automobile cooling system, including conveying coolant, regulating temperature, maintaining system pressure balance and preventing coolant leakage. The normal working state of water pipes is very important for ensuring the normal operation of the engine and prolonging its life. Therefore, it is of great significance for the stability and reliability of automobile cooling system to regularly check and maintain the state of water pipes and ensure their normal work.