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!

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.

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.

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.

Fig. 370: Bending Open Welding Spots On Filter Element With Screwdriver

Avoid damaging, e.g. notches or scratches, the solenoid valve housing (see arrows).

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.

Fig. 372: Identifying Solenoid Valves

Assemble engine.

Delete fault memory.

Check function of DME control unit.

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