11 61 050 Removing And Installing Intake Air Manifold (N51)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove tension strut. See 51 71 371 REMOVING AND INSTALLING/REPLACING TENSION STRUT ON LEFT OR RIGHT SPRING STRUT DOME (E82) or 51 71 371 REMOVING AND INSTALLING/REPLACING TENSION STRUT ON LEFT OR RIGHT SPRING STRUT DOME (E88)
Remove suction filter housing. See 13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N51)
Remove engine cover .

Open holder (2).

Disconnect plug connection (1) under manifold.

Release both crankcase breathers (3).

Fig 1: Identifying Plug Connection And Crankcase Breathers

G04751268

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Disconnect plug connection (3).

Release bolts (4).

Detach engine wiring harness (2) from manifold and lay to one side.

Fig 2: Identifying Plug Connection And Bolts

G04751269

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) on oil pressure switch.

Fig 3: Identifying Plug Connection On Oil Pressure Switch

G04751376

Courtesy of BMW OF NORTH AMERICA, INC.

Release fuel rail (2) and lay to one side.

NOTE: Do not detach fuel line.

Release screw (1).

Unscrew nuts (3).

Tightening torque. See 11 61 1AZ in INTAKE MANIFOLD .

Fig 4: Identifying Screw And Nuts

G04751271

Courtesy of BMW OF NORTH AMERICA, INC.

Raise intake manifold approx. 10 cm.

Disconnect plug connection (1) at bottom.

Release tank vent line behind throttle valve assembly.

Fig 5: Identifying Plug Connection

G04751272

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Replace all seals.

Assemble engine.