64 53 521 Replace safety pressure switch (N52T, N54, N55, B47)
WARNING: This page is about a different variant/trim than selected.
WARNING:
Danger of injury!
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant fluid.
Read and comply with safety instructions:
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant fluid.
Read and comply with safety instructions:
- 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 OIL
IMPORTANT:
Risk of damage!
Restart engine only when A/C 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 desiccant 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 A/C 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 desiccant 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 tasks:
Release screws (1) and (2).
Remove heat shield (3).
Unfasten plug connection (1) and disconnect.
Release safety pressure switch (2).
Tightening torque 64 53 8AZ .
After installation: