Removing and Installing/Replacing Expansion Valve

64 51 525 - Removing and installing or replacing expansion valve





Warning!
Risk of injury!
Refrigerant circuit is under high pressure!
Follow safety instructions for handling R 134a refrigerant Instructions for Handling Refrigerant R 134a.
Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant oil Instructions for Handling Refrigerant Oil (for Refrigerant R 134a).





Important!
Risk of damage!
Restart engine only when A/C system has been correctly filled.
Follow instructions Removal and Replacement for opening and replacing parts in refrigerant circuit!
If A/C system is opened for more than 24 hours:Replace desiccant insert for A/C system 51 45 185 Removing and Installing/Replacing Panel For Pedals





Necessary preliminary tasks:
- Drawing off, evacuating and filling the A/C system Drawing off, Evacuating and Filling A/C System (R 134a) are not included in the time value given for this work operation
- Remove trim panel for pedal assembly 51 45 185 Removing and Installing/Replacing Panel For Pedals





Release screw (1).
Remove left footwell air duct (2) in direction of arrow.

Installation Note:
Make sure left footwell air duct (2) is correctly seated.





Release screws (1).
If necessary, unclip plug connection.
Remove expansion valve cover (2) in direction of arrow.





Installation Note:
Retaining hooks (1) must engage fully in mounts (2).





Release screw (1).
Detach refrigerant lines (2) in direction of arrow.
Remove plate (3).





Release screws (1).
Detach refrigerant lines (2) in direction of arrow.
Remove plate (3).
Remove expansion valve.





Installation:
Replace all sealing rings (1) and coat with refrigerant oil.





After installation:
- Evacuate and fill A/C system Drawing off, Evacuating and Filling A/C System (R 134a)