[2020 Mercedes Benz CLA250 ]Water/Coolant pump Replacement

The coolant pump, also known as the water pump, plays a crucial role in a car's engine cooling system. Its main function is to:
1. Circulate coolant (a mixture of water and antifreeze) through the engine block, cylinder head, and radiator.
2. Maintain optimal engine temperature by pumping coolant through the system.
3. Prevent engine overheating, which can lead to damage or failure.
4. Help regulate the engine's operating temperature, ensuring proper fuel combustion and engine performance.
The coolant pump is typically driven by the serpentine belt and is located at the front of the engine. It's an essential component, and failure can lead to engine damage or costly repairs.