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Home >> BMW >> 2011 >> 740i >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair (N54, 2011-2012) >> Intake Manifold >> 11 61 050 Removing and installing air intake manifold (N54)

11 61 050 Removing and installing air intake manifold (N54)

Necessary preliminary tasks: 

Detach vacuum hose (2) carefully.

Release tank venting connection (1).

Installation: 

Tank venting connection (1) must snap audibly into place!

Release vacuum line (5) from line holder (3).

Release rubber holder (4) from guide.

Fig 1: Identifying Tank Venting Connection And Rubber Holder
G11164638Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Installation: 

Plug connection (1) must snap audibly into place!

Unclip line (2) from line holder.

Fig 2: Identifying Plug Connection
G11164639Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Installation: 

Plug connection (1) must snap audibly into place!

Unclip line (2) from mounting (not shown).

Fig 3: Identifying Plug Connection And Mounting
G11164640Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 11 61 1AZ .

Unscrew nuts (3).

Tightening torque 11 61 2AZ .

Raise air intake manifold (2) approx. 10 - 15 cm (see arrow).

Fig 4: Raising Air Intake Manifold
G11164641Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Cable duct (1) with holder (2) and engine wiring harness are located under intake ducts.

Unclip cable duct (1) from holder (2) at positions (3) and expose in downward direction.

Fig 5: Identifying Cable Duct With Holder
G11164642Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Installation: 

Plug connection (1) must snap audibly into place!

Lift out intake air manifold.

Fig 6: Identifying Plug Connection
G11164643Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Cover intake entries (1) with suitable apparatus to prevent objects getting into them.

Installation: 

Sealing faces must be free from oil and grease.

Fig 7: Identifying Intake Entries
G11164644Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Replace gaskets (1). 

Fig 8: Identifying Gaskets
G11164645Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check air intake system for leaks.