64 53 521 Replacing safety pressure switch (vehicles with N54 or N55 engine)
WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Danger of injury!
Refrigerant circuit is under high pressure!
Avoid contact with refrigerant and refrigerant oil.
Read and comply with SAFETY INSTRUCTIONS
IMPORTANT:
Risk of damage!
Restart engine only when A/C system has been correctly filled.
Follow notes for OPENING AND REPLACING PARTS IN REFRIGERANT CIRCUIT .
If air conditioning system is opened for more than 24 hours: Replace DESICCANT INSERT .
Necessary preliminary tasks:
- DRAIN OFF the air conditioning system
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: