How to disassemble the BMW 523 heater water valve?

1. First, keep the vehicle turned off, and control the temperature in the cold state to prevent the high-temperature coolant from scalding the skin.

2. Secondly, remove the reinforcing tie rod at the front of the engine compartment, and remove the engine air cleaner housing and the front air intake duct.

3. finally, remove the pressurized air pipe at the front of the throttle valve, remove the plug of the warm water valve, and loosen the hoop on the warm water valve with the hoop pliers special for automobiles.