11 36 655 Removing and installing/replacing both solenoid valves (N52)

IMPORTANT: It is essential to observe conditions of absolute cleanliness when removing and installing the intake and exhaust solenoid valves.
Possible malfunction if valves are contaminated:

Rough running
OBD fault entry
Exhaust emission characteristics
Low engine power

Necessary preliminary work:

REMOVING ENGINE COVER .

Disconnect plug connection (1) on intake solenoid valve (2).

Release screw (3).

NOTE: Secure support and sealing ring against falling down.

Remove intake solenoid valve (2) with holder towards front.

Disconnect plug connection (6) on exhaust solenoid valve (5).

Release screw (4).

Fig 1: Identifying Intake Solenoid Valve, Exhaust Solenoid Valve, Connectors, And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Secure support and sealing ring against falling down.

Remove exhaust solenoid valve (5) with holder towards front.

Tightening torque 11 36 3AZ .

IMPORTANT: Risk of mixing up plug connections (1 and 6).

Installation note:

Replace support and sealing rings .

Assemble engine.

Check function of DME.