11 36 655 Removing and installing/replacing both solenoid valves (N55)

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 BMW 740i, 2015 BMW 740Li xDrive, 2015 BMW 740Li, 2014 BMW 740i, and 2014 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: It is essential to observe conditions of absolute cleanliness when removing and installing the inlet and exhaust solenoid valves.

Possible malfunction if valves are contaminated:

Rough running
OBD fault entry
Exhaust emission behavior.
Low engine power

Necessary preliminary work:

Remove IGNITION COIL COVER

Disconnect plug connection (1) on inlet solenoid valve.

Disconnect plug connection (2) on exhaust solenoid valve.

Fig 1: Identifying Solenoid Valve Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (2).

Remove inlet solenoid valve (1) with holder towards front.

Release screw (3).

Remove exhaust solenoid valve (4) with holder approx. 10 mm towards front.

Tightening torque 11 36 3AZ .

Fig 2: Identifying Intake/Exhaust Solenoid Valves And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Turn exhaust solenoid valve (1) approx. 90° in direction of arrow until exhaust solenoid valve (1) can be removed from the front on engine wiring harness.

Fig 3: Turning Exhaust Solenoid Valve

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Remove O-ring (2).

Remove support ring (1).

Installation:

Replace support and O-rings.

Fig 4: Identifying Solenoid Valve O-Ring And Support Ring

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Assemble engine.

Check function of DME.