64 53 520 Replacing safety pressure switch

WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling R134a refrigerant, see 64 50 ... Safety instructions for handling refrigerant R134a .
Follow safety instructions for handling refrigerant oil, see 64 50 ... Instructions for handling refrigerant oil (for refrigerant R 134a) .

NOTE: The time value given for this work operation does not include drawing off, evacuating and filling the A/C system!

Drain off air conditioner, see 64 50 009 Drawing off, evacuating and filling A/C system (R 134a) .

IMPORTANT: Risk of damage!
Restart engine only when A/C system has been correctly filled.

NOTE: If A/C system is opened for more than 24 hours: Replace drier for A/C system, see 64 53 510 Removing and installing/replacing dryer bottle for air conditioner .

Necessary preliminary tasks:

Release fluid reservoir for windscreen washer system and place to one side

Fig 1: Safety Pressure Switch

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Release safety pressure switch (2).

Tightening torque: 64 53 13AZ, see 64 11 HOUSING, HEATER/AIR CONDITIONER .