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Home >> BMW >> 2009 >> M3 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 71 (Heating And Air Conditioning - Repair - E90) >> Condenser And Dryer With Lines >> 64 53 520 Replacing safety pressure switch

64 53 520 Replacing safety pressure switch

WARNING: This page is about a different variant/trim than selected.
WARNING: Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for HANDLING R 134A REFRIGERANT  .
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for 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 

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

Tightening torque 64 53 14AZ .

Fig 1: Identifying Plug Connection And Pressure Switch
G06202316Courtesy of BMW OF NORTH AMERICA, INC.

After installation