64 53 521 Replacing safety pressure switch (N63)
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WARNING:
Danger of injury!
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant fluid.
Read and comply with safety information:
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant fluid.
Read and comply with safety information:
- Handling R 134a (tetrafluorethane) refrigerant . See 64 50... NOTE FOR HANDLING R134A REFRIGERANT or 64 50... SAFETY INFORMATIONS FOR HANDLING TETRAFLUORETHANE REFRIGERANT R134A .
- HANDLING REFRIGERANT FLUID
IMPORTANT:
Risk of damage!
Restart engine only when air conditioning system has been correctly filled.
Follow INSTRUCTIONS for opening and replacing parts in refrigerant circuit.
If air conditioning system is opened for more than 24 hours: Replace dryer insert for air conditioning . See 64 53 517 REPLACING DESICCANT INSERT FOR AIR CONDITIONING SYSTEM or 64 53 518 REPLACING DESICCANT INSERT FOR A/C SYSTEM (CAPACITOR REMOVED) .
Restart engine only when air conditioning system has been correctly filled.
Follow INSTRUCTIONS for opening and replacing parts in refrigerant circuit.
If air conditioning system is opened for more than 24 hours: Replace dryer insert for air conditioning . See 64 53 517 REPLACING DESICCANT INSERT FOR AIR CONDITIONING SYSTEM or 64 53 518 REPLACING DESICCANT INSERT FOR A/C SYSTEM (CAPACITOR REMOVED) .
Necessary preliminary work
- DRAIN OFF AIR CONDITIONING SYSTEM
- Disconnect BATTERY EARTH LEAD
- Remove RIGHT SUSPENSION CROSS-BRACE
- Remove right intake port
Release screws (1).
Tightening torque 12 90 2AZ .
Remove electronics box cover (2).
Unclip and unplug all connectors (1) from control units.
Unclip grommet hold-down device (2) and remove.
Detach rubber grommets (3) from electronics box.
Place wiring harnesses to the side.
Installation note:
Make sure grommets are is correctly seated (watertightness).
Release screw (1).
Tightening torque 64
Remove lead (2) from connecting piece.
Unfasten plug connection (1) and disconnect.
Release safety pressure switch (2).
Tightening torque 64 53 8AZ .
After installation