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11 15 002 Replacing Engine Crankcase Ventilation Line for Cylinders 1-4

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Necessary Preliminary Tasks: 

Release Screws (1).

Tightening torque 12 90 2AZ .

Remove Electronics Box Cover (2).

Fig 1: Identifying Electronics Box Cover and Screws
G09873794Courtesy of BMW OF NORTH AMERICA, INC.

Unclip Grommet Hold-Down Device (1) and Remove.

Fig 2: Identifying Grommet Hold-Down Device
G09873795Courtesy of BMW OF NORTH AMERICA, INC.

Unlock All Connectors (1) From Control Unit and Disconnect.

Detach Rubber Grommets (2) From Electronics Box.

Place Wiring Harnesses To The Side.

Installation Note: 

Make Sure Grommets Are Correctly Seated (Watertightness).

Fig 3: Identifying Rubber Grommets and Connectors
G09873796Courtesy of BMW OF NORTH AMERICA, INC.

Slacken Nut (1).

Tightening torque 12 51 1AZ .

Detach Earthing Cable (2).

Fig 4: Identifying Earth Lead and Nut
G09873797Courtesy of BMW OF NORTH AMERICA, INC.

Release Screw (1).

Lay Filler Neck (2) for Windscreen Washer Fluid To One Side.

Fig 5: Identifying Filler Neck and Screw
G09873798Courtesy of BMW OF NORTH AMERICA, INC.

Release Screws (1).

Tightening torque 12 90 1AZ .

Unclip Coolant Lines At Clamp (2) From Electronics Box.

Fig 6: Identifying Clamp and Screws
G09873799Courtesy of BMW OF NORTH AMERICA, INC.

Carefully Feed Out The Electronics Box (1) Complete with Control Unit Upwards and Place To One Side.

IMPORTANT: Risk of Damage! Do Not Under Any Circumstances Kink or Bend Coolant Lines (2).

Installation Note: 

When Installing The Electronics Box (1), Insert Guide (3) On Engine Support.

Fig 7: Identifying Electronics Box, Guide, and Coolant Lines
G09873800Courtesy of BMW OF NORTH AMERICA, INC.

Release Clamp (1).

Tightening torque 13 71 8AZ .

Bend The Charge Air Pipe (2) Slightly To The Side.

Check The Gasket On The Exhaust Turbocharger.

Replacing If Necessary.

Fig 8: Identifying Charge Air Pipe and Clamp
G09873801Courtesy of BMW OF NORTH AMERICA, INC.

Version 1: 

  1. Unlock The Retainer.
  2. Pull Off The Retainer Together with the Line.
    Fig 9: Removing Right Clean Air Pipe
    G09873802Courtesy of BMW OF NORTH AMERICA, INC.

Version 2: 

Pull The Line (1) Gently In The Direction Indicated By The Arrow.

At The Same Time, Use A Screwdriver (3) To Unlock The Latch Mechanisms (2) One After The Other.

Pull The Connecting Line Off The Clean Air Pipe and Engine Crankcase Ventilation Line.

Fig 10: Unlocking Latch Mechanisms with Screwdriver for Removal of Connecting Line
G09873803Courtesy of BMW OF NORTH AMERICA, INC.

Release Screw (1).

Tightening torque 13 71 1AZ .

Pull Clean Air Pipe (2) From Exhaust Turbocharger.

Fig 11: Identifying Clean Air Pipe and Screw
G09873804Courtesy of BMW OF NORTH AMERICA, INC.

Release Screws (1).

Remove Oil Filler Neck.

Fig 12: Identifying Oil Filler Neck and Screws
G09873805Courtesy of BMW OF NORTH AMERICA, INC.
  1. Unlock The Retainer.
  2. Pull Off The Retainer Together with the Line.
    Fig 13: Removing Ventilation Line From Intake System
    G09873806Courtesy of BMW OF NORTH AMERICA, INC.

Version 1: 

  1. Unlock The Retainer.
  2. Pull Off The Retainer Together with the Line.
    Fig 14: Removing Right Connecting Line
    G09873807Courtesy of BMW OF NORTH AMERICA, INC.

Version 2: 

Pull The Line (1) Gently In The Direction Indicated By The Arrow.

At The Same Time, Use A Screwdriver (3) To Unlock The Latch Mechanisms (2) One After The Other.

Pull The Connecting Line Off The Clean Air Pipe and Engine Crankcase Ventilation Line.

Fig 15: Removing Right Connecting Line (Version 2)
G09873808Courtesy of BMW OF NORTH AMERICA, INC.

Release Screws (1).

Tightening torque 12 51 2AZ .

Lift The Engine Wiring Harness (2) Slightly and Remove The Crankcase Ventilation Line.

Fig 16: Identifying Engine Wiring Harness and Screws
G09873809Courtesy of BMW OF NORTH AMERICA, INC.