Four-level pressure switch

1. Slacken the fastening clamp and remove the drier filter withdrawing it upwards.

NOTE: To prevent the drier filter from absorbing too much humidity which would adversely affect the way it works, only 15 minutes at the most should lapse from the time it is connected to the system up to the end of assembly; if not, seal with seal plugs the filter inlet and outlet ducts or the free ends of the pipes connected to it.

FOUR-LEVEL PRESSURE SWITCH

REMOVING/REFITTING

• Disconnect the battery (-) terminal.
• To gain access to the pressure switch, remove the battery and its support proceeding as described in the procedure "Drier Filter - Removing/Refitting".

1. Disconnect the electrical connection from the four-level pressure switch.
2. Slacken and remove the four-level pressure switch.

PIPES FROM EVAPORATOR TO DRIER FILTER

REMOVING/REFITTING

• Drain the fluid from the climate control system (see specific paragraph).
• Remove the battery, its support and the corrugated sleeve proceeding as described in the procedure "Duct assembly and heater-distributor unit - Removing/Refitting".
• Using a suitable syringe, empty the brake-clutch fluid reservoir.

1. Disconnect the electrical connection from the four-level pressure switch.
2. Slacken the fastening screw and nut, then disconnect the stiff pipe from the drier filter and the intermediate connector.