Can the water pipe behind the cylinder head of a Mercedes-Benz E300 be removed?

[VonRuby]

The water pipe behind the cylinder head of a Mercedes-Benz E300 can be removed. Removal method: After removing the vacuum pump, the pipe will be visible. There is a small spline screw on the pipe; remove it to pull the pipe out. Then, the pipes on both sides, along with the heater pipe and wiring harness on the transmission, may be slightly obstructing. Push them aside to take the pipe out. Generally, it is removed and reinstalled from below. Function of the water pipe: Water pipes are divided into upper water pipes, lower water pipes, and auxiliary tank connecting pipes. When a car is running, it generates heat, so water is used for cooling. There are many small interconnected passages inside the cylinder block, and the radiator's role is to store reserve water. When the water in the cylinder block reaches a certain temperature, the thermostat automatically opens. The water pump then circulates the reserve water into the cylinder block. At this point, the upper water pipe is needed to transport the reserve water to the cylinder block, and the cylinder block sends the water back to the radiator via the lower water pipe. The water pipes are like roads transporting a car from one place to another.