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Home >> BMW >> 2006 >> Z4 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair - N52 >> 61 Intake manifold >> 11 61 050 Removing and installing intake air manifold (N52)

11 61 050 Removing and installing intake air manifold (N52)

Necessary preliminary tasks: 

Open holder (2).

Disconnect plug connection (1) under manifold.

Release both crankcase breathers (3).

Fig 1: Identifying Plug Connection, Crankcase Breathers And Holders
G04725628Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Disconnect plug connection (3).

Release screws (4).

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

Fig 2: Identifying Plug Connection And Engine Wiring Harness
G04725629Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1) on oil pressure switch.

Fig 3: Identifying Plug Connections, Wiring Harness And Screws
G04725630Courtesy 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).

For tightening torque refer to 11 61 1AZ in 11 61 INTAKE MANIFOLD (N52) .

Fig 4: Identifying Fuel Rail And Mounting
G04725631Courtesy 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 At Bottom
G04725632Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Replace all seals.

Assemble engine.