64 53 520 Replacing safety pressure switch

WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 335xi, 2012 BMW 328xi, and 2012 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Risk of injury!

Refrigerant circuit is under high pressure!

Follow safety instructions for handling refrigerant R 134a.

Avoid contact with refrigerant and refrigerant oil.

Follow safety instructions for handling refrigerant oil 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!

NOTE: If A/C system is opened for more than 24 hours: Replace desiccant insert for A/C system

Necessary preliminary tasks:

Drawing off, evacuating and filling the A/C system are not included in the time value given for this work operation

Release screws (1) and bend thermal insulation (2) to one side.

Fig 1: Screws And Insulation

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) and release safety pressure switch (2).

For tightening torque refer to 64 53 14AZ in 64 53 REFRIGERANT LINES AND EXPANSION VALVE .

Fig 2: Plug Connection And Safety Pressure Switch

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Evacuate and fill A/C system