How to remove the Elysee heater switch?

First, open the engine compartment, find the inlet pipe of the warm air tank, return pipe, and remove it with pliers.

Then use a Phillips screwdriver and a 12- 14 wrench to remove the bottom bracket and fix the heater tank. This will loosen the heater tank.

Finally, the heater tank and the outlet pipe of the inner platform were removed, and the whole heater tank was successfully removed.

Attached drawings: You can understand it at a glance.