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:
Mounting
SUBSEQUENT INSTALLATION OF WHEEL-BOLT LOCK
Loosen wheel bolts.
Raise car so that wheel can be turned freely.
Release wheel studs to such an extent that the wheel can move freely on the
wheel hub.
Turn wheel so that valve is face down.
Remove top wheel stud and insert wheel stud lock.
Fig. 72:
Safety At Work
1.1 Working with aluminium dust
Wear a fine dust mask.
E52 only: Use an explosion-proof extractor system (refer to Service
Information 5 01 00 532).
Note national regulations.
1.2 Removing sealant
Hydrochloric acid is created when PVC sealing material is heated to
temperatures in excess o
