mini Workshop Repair Guides

Mini Workshop Service and Repair Manuals

Refrigerant Pressure Sensor / Switch, HVAC|Service and Repair|Page 1101 > < Heater Core Temperature Sensor / Switch|Service and Repair
Page 1
background image

Refrigerant Pressure Sensor / Switch: Service and Repair

64 53 520 - Replacing safety pressure switch

Warning!

Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling R 134a refrigerant See: Heating and Air Conditioning/Service and Repair/Procedures/Instructions for Handling
Refrigerant R 134a.
Follow safety instructions for handling refrigerant oil See: Heating and Air Conditioning/Service and Repair/Procedures/Instructions for Handling
Refrigerant Oil (for Refrigerant R 134a).

Important!

Risk of damage!
Restart engine only when A/C system has been correctly filled.
If A/C system is opened for more than 24 hours:Replacing drier insert for A/C system See: Heating and Air Conditioning/Receiver Dryer/Service and
Repair/Replacing Desiccant Insert for A/C System

Necessary preliminary tasks:

-

Drawing off, evacuating and filling the A/C system See: Heating and Air Conditioning/Service and Repair/Procedures/Drawing off, Evacuating
and Filling A/C System (R 134a) are not included in the time value given for this work operation

Disconnect plug connection (1).
Unscrew safety pressure switch (2).
Tightening torque 64 53 4AZ See: Heating and Air Conditioning/Hose/Line HVAC/Specifications.

Refrigerant Pressure Sensor / Switch, HVAC|Service and Repair|Page 1101 > < Heater Core Temperature Sensor / Switch|Service and Repair