64 52... Instructions for opening and replacing parts in refrigerant circuit: Notes
WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
- Avoid contact with refrigerant and refrigerant fluid
- Follow safety information for handling R134a refrigerant See 6450... INSTRUCTIONS FOR HANDLING REFRIGERANT R 134A or 6450... SAFETY INSTRUCTIONS FOR HANDLING REFRIGERANT R134A
- Follow safety information for HANDLING REFRIGERANT FLUID
IMPORTANT:
- Always use new O-rings each time A/C connections are opened (refer to Electronic Parts Catalogue)
They must not be coated.
Use special tool 00 90 30 Keil to install sealing rings without damaging them.
- Open the refrigerant circuit for as short of a period as possible.
- Close all components and lines in the refrigerant circuit and return parts immediately following the removals at openings with special tool 32 1 270 to prevent penetration of moisture or foreign objects.
- If the refrigerant circuit was closed at the openings with special tool 32 1 270 but it remains open for more than 24 hours, the dryer insert for the air conditioning must be replaced.