11 36 720 Removing and installing/renewing both solenoid valves on right side (N63O1)

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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 1-4:

Necessary preliminary work:

Read out fault memory in DME control unit
Switch off ignition.
Remove CHARGE AIR COOLER .

Unlock plug connections of solenoid valves (1 and 2) and disconnect.

Installation note:

Plug connections must snap audibly into place!

Fig 1: Identifying Plug Connections Of Solenoid Valves

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Solenoid valve (4) controls the exhaust adjustment unit.

Solenoid valve (2) controls the intake camshaft adjuster.

Release screws (1 and 3).

Tightening torque 11 36 3AZ .

Pull out solenoid valves.

Fig 2: Identifying Solenoid Valves And Screws

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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 3: Identifying O-Rings On Solenoid Valve

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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 4: Identifying Filter Elements

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Bend open welding spots on filter element (1) with a screwdriver (2) in direction of arrow until welding spots are opened.

Fig 5: Bending Welding Spots Open On Filter Element

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

Apply engine oil to O-ring.

Fig 6: Identifying Solenoid Valve Housing Surfaces

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Gently insert solenoid valves as far as stop.

Ensure correct installation position.

Insert screws (1 and 3) and tighten down.

Tightening torque 11 36 3AZ .

Fig 7: Identifying Solenoid Valves And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Clear diagnostic fault entries from fault memory.

Check function of DME.