64 52... Instructions for opening and replacing parts in refrigerant circuit: Notes
WARNING: This page is about a different variant/trim than selected.
WARNING:
- Avoid contact with refrigerant and refrigerant fluid
- Follow safety information for handling R134a refrigerant. See 6450... SAFETY INSTRUCTIONS FOR HANDLING R134A REFRIGERANT or 6450... Instructions for handling refrigerant R 134a .
- 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 9 030 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.