11 36 655 Removing and installing/replacing both solenoid valves (N54)

IMPORTANT: Always check that the solenoid valves are clean during removal and installation.
Possible malfunctions if valves are contaminated:

IMPORTANT: Risk of damage!
Do not clean solenoid valves with compressed air.

Necessary preliminary tasks

NOTE: Carefully press coolant hose and pressure line (not shown) to one side.

NOTE: Solenoid valve (2) controls the inlet adjustment unit.

Solenoid valve (3) controls the exhaust adjustment unit.

Fig 1: Identifying Inlet, Exhaust Solenoid Valve, Plug Connection And Screw

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Remove plug connections (1 and 4).

Installation:

Do not mix up plug connections (1 and 4) of solenoid valves.

Plug connections (1 and 4) must snap audibly into place!

Unfasten screws (3 and 4).

Tightening torque: 11 36 3AZ .

Carefully pull out solenoid valves (1 and 2).

Fig 2: Identifying Solenoid Valve Plug Connection Screws

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Installation:

Replace sealing ring (1) on solenoid valve (2).

NOTE: Moisten sealing ring (1) with engine oil.

Avoid damaging, e.g. notches or scratches, the solenoid valve (2).

Fig 3: Identifying Engine Oil Sealing Ring And Solenoid Valve

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IMPORTANT: Risk of damage!
Do not tilt solenoid valves (1 and 2) when inserting into cylinder head.

Carefully insert solenoid valves (1 and 2) up to stop.

Ensure correct installation position.

Insert screws (3 and 4) and tighten down.

Tightening torque: 11 36 3AZ .

Fig 4: Identifying Solenoid Valve Plug Connection Screws

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Assemble engine.

Now clear the fault memory.

Check function of DME control unit.