BMW 7 Series: Removing And Installing/Replacing Both Solenoid Valves On Left Side (N63)
IMPORTANT: Always check that the solenoid valves are clean during removal and installation.
Possible malfunctions if valves are contaminated:
- Irregular operation
- OBD incorrect entry
- Poor exhaust gas values
- Low engine performance
IMPORTANT: Risk of damage! Do not clean solenoid valves with compressed air.
Solenoid valves, cylinders 5-8:
Necessary preliminary work
- Read out fault memory in DME control unit
- Switch off ignition
- Unlock hose on tank venting valve and disconnect
- Remove left CHARGE AIR COOLER
- Carefully press pipe to one side
NOTE: Solenoid valve (2) controls the intake adjuster.
Solenoid valve (4) controls the exhaust adjustment unit.
Unlock plug connections of solenoid valves (2 and 4) and disconnect.
Installation note: Plug connections must snap audibly into place!
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Fig. 367: Identifying Solenoid Valves
Unfasten screws (1 and 3).
Tightening torque 11 36 3AZ.
Pull out solenoid valves (2 and 4).
Installation note:
Replace O-rings (1 and 2) on solenoid valve
Installation note:
To install solenoid valves, coat both O - rings with engine oil.
If the solenoid valve is to be reused, the filter strainer (see arrow) must be cleaned.
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Fig. 368: Identifying O-Rings On Solenoid Valve
NOTE: If a filter element is clogged with dirt, the filter element (filter strainer) may be removed.
Release filter elements (1) at contact edges.
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Fig. 369: Identifying Filter Elements At Contact Edges
Bend open welding spots on filter element (1) with a screwdriver (2) in direction of arrow until welding spots are opened.
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Fig. 370: Bending Open Welding Spots On Filter Element With Screwdriver
Avoid damaging, e.g. notches or scratches, the solenoid valve housing (see arrows).
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Fig. 371: Inspecting Notches Or Scratches For Solenoid Valve Housing
Carefully insert solenoid valves (2 and 4) up to stop.
Ensure correct installation position.
Insert screws (1 and 3) and tighten down.
Tightening torque 11 36 3AZ.
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Fig. 372: Identifying Solenoid Valves
Assemble engine.
Delete fault memory.
Check function of DME control unit.
READ NEXT:
Removing And Installing/Replacing Inlet And Exhaust Adjustment
Units On Right Side (N63)
Notes
IMPORTANT: When the engine is shut down, the inlet and exhaust camshaft
adjuster is
normally locked in its initial position.
The situation may arise in some individual cases where this initial
Oil Supply
CHECKING ENGINE OIL PRESSURE
Notes
WARNING: Risk of scalding!
NOTE: To check the engine oil pressure, remove the oil pressure switch and
install and
connect the special tool.
NOTE: A small amount of
SEE MORE:
A/C Performance Test (R 134a)
Observe the following conditions prior to the A/C performance test
1. Provision of a diagnosis system. Safeguard electrical system integrity by
checking the fault memory (no
faults in the fault memory).
2. Provide a thermometer with separate gauge.
3. Perform the test in a suitable workshop area
System Overview
Audio playback takes place either through the vehicle's speakers or via
headphones. The volume of the speakers
can be adjusted via the multifunction steering wheel, the head unit or with the
remote control. The volume is
controlled speed-dependent during playback through the speakers. The driving
