BMW 7 Series: Removing And Installing Or Replacing Expansion Valve
Notes
WARNING: Danger of injury! Refrigerant circuit is under high pressure! Avoid contact with refrigerant and refrigerant fluid.
Read and comply with safety information:
- Follow safety information for handling R 134a tetrafluorethane refrigerant.
- HANDLING REFRIGERANT FLUID
IMPORTANT: Risk of damage! Restart engine only when air conditioning system has been correctly filled.
Follow NOTES for opening and replacing parts in refrigerant circuit.
If air conditioning system is opened for more than 24 hours: Replacing DESICCANT INSERT for air conditioning system
Necessary preliminary work
- DRAWING OFF, EVACUATING AND FILLING THE HEATING AND AIR CONDITIONING SYSTEM are not included in the time value given for this job item
- Remove SOUND INSULATION FROM BULKHEAD UPPER SECTION
Feed out line penetration (1) towards top.
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Fig. 175: Identifying Line Penetration
Release screws (1) and remove refrigerant lines (2) with associated seal.
Tightening torque 64 53 1AZ.
Installation note: Replace sealing rings.
Use special tool 00 9 030 to install sealing rings without damaging them.
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Fig. 176: Identifying Refrigerant Lines And Screws
F02/F03 Automatic rear air-conditioning system only:
Release screw (1).
Tightening torque 64 53 7AZ.
Remove refrigerant line (2) with associated seal.
Installation note: Replace sealing rings.
Use special tool 00 9 030 to install sealing rings without damaging them.
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Fig. 177: Identifying Refrigerant Line And Screw
Unscrew nuts (1).
Tightening torque 64 53 9AZ.
Remove sealing plate (2) by maneuvering upwards.
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Fig. 178: Identifying Sealing Plate And Nuts
Feed out foam material (1).
Unfasten screws (2).
Tightening torque 64 53 2AZ.
Carefully remove flange (3) with expansion valve behind.
Installation note: Replace sealing rings.
Use special tool 00 9 030 to mount sealing rings without damaging them.
Flange (3) must be correctly seated on expansion valve.
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Fig. 179: Identifying Flange And Screws
After installation
- EVACUATE AND FILL A/C SYSTEM
READ NEXT:
Removing And Installing/Renewing Evaporator
Notes
NOTE: Non-coated evaporators were installed in connection with ozone
generator on
vehicles built before 09/2010.
A coated evaporators without an ozone generator is installed on vehicles built
Removing And Installing/Replacing Evaporator For Rear Air
Conditioner
Necessary preliminary tasks
Remove REAR AIR CONDITIONER
REMOVE RIGHT FLAP ACTUATOR DRIVE
Release screws (1) on flange holder (2).
Installation:
Make sure flange holder (2) is correctly seated in
SEE MORE:
Checking Camshaft Timing On Right Side (N63)
Notes
IMPORTANT: The timing can only be checked with special tool 11 9 900.
The timing may be misinterpreted if it is checked without special tool 11 9 900.
Cylinders 1-4:
Necessary preliminary work
Remove right CYLINDER HEAD COVER
Remove FAN COWL with electric fan
Remove BELT PULLEY for air co
System Functions
The Principle
The HUD can be compared to a projection device. A light source is required to
project the HUD information.
The two LED arrays (red and green) serve as the light source. The image content
is created by the TFT
projection display. The TFT projection display can be compared to a filter
