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11 65 075 Removing and installing/replacing vacuum unit for turbine control flap (M57T2)

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

WARNING: Risk of burning!
Only perform this repair work on an engine that has cooled down.
IMPORTANT: If the exhaust turbocharger or the vacuum unit is released, it will be necessary to adjust the vacuum unit.
Excess pressure and vacuum lines are identified by the size of the seals and color-coded Red and Blue and must not be mixed up with each other.
Build up pressure with Blue color.
Generate vacuum pressure with Red color.

Necessary preliminary tasks: 

Slacken nut (2).

Fig 1: Removing Air Filter Housing Nut
G09954424Courtesy of BMW OF NORTH AMERICA, INC.

Detach vacuum line (Blue) from vacuum unit.

Release all hoses and cable connections on vacuum unit.

Fig 2: Identifying Cable Connections On Vacuum Unit
G09954425Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Lift out vacuum unit.

Fig 3: Identifying Screws Of Vacuum Unit
G09954426Courtesy of BMW OF NORTH AMERICA, INC.

Adjusting vacuum unit for main control flap: 

Prepare special tool 81 29 0 426 464.

Generate vacuum pressure with Red color.

Connect diagnosis tester.

Measuring technique: Select pressure sensor.

Vacuum pressure measurement: 

Prepare BMW diagnosis system on vacuum diagnosis unit.

  1. 1. Screw in adapter for IMIB 81 29 158 850.
  2. 2. Connect stimulus cable (1 and 2) plus and minus.
  3. 3. Connect 12-volt cable terminal 30 and negative terminal to the battery.
  4. 3. Connect 12V battery cables (3) to vehicle battery positive and negative (pump operation max. 3 mins.). 
  5. 5. Vacuum connection (red) 81 29 0 428 217.
    Fig 4: Checking Vacuum Pressure
    G09954427Courtesy of BMW OF NORTH AMERICA, INC.

Vacuum pressure measurement: 

Prepare BMW diagnosis system on vacuum diagnosis unit.

  1. Screw in pressure sensor.
  2. Connect 12V battery cables (2) to vehicle battery positive and negative.
  3. Connect 12V battery cables (3) to vehicle battery positive and negative (pump operation max. 3 mins.)  .
  4. Controller for vacuum connection.
  5. Vacuum connection (Red).
    Fig 5: Checking Vacuum Connection
    G09954428Courtesy of BMW OF NORTH AMERICA, INC.

Calibration for vacuum pressure measurement: 

Release lock nut on controller (1).

Press setting with measurement.

Detach vacuum line (2) - colored Blue - from pressure converter (1), see arrow.

Connect vacuum line (2) - colored Blue - to vacuum line (3) - colored Red.

Reopen shutoff tap (2) on special tool 82 29 0 426 464.

The linkage on the vacuum unit is now actuated.

Fig 7: Detaching Vacuum Line
G09954430Courtesy of BMW OF NORTH AMERICA, INC.

Turn flap control (1) of main control flap in direction of arrow (clockwise) to closed.

Fig 8: Turning Flap Of Vacuum Unit
G09954431Courtesy of BMW OF NORTH AMERICA, INC.

Bring adjusting nut into contact with linkage (1), see arrow.

Fig 9: Adjusting Nut Of Vacuum Unit
G09954432Courtesy of BMW OF NORTH AMERICA, INC.

Pretension linkage on vacuum unit.

Installation note: 

Apply a colored mark on special tool 11 6 050 .

Pre-tension adjusting nut on linkage with special tool 11 6 050 by 4 turns  .

After adjusting linkage, secure with lock nut (1).

Fig 10: Securing Lock Nut
G09954433Courtesy of BMW OF NORTH AMERICA, INC.

Functional check of turbine control flap, refer to Test module, turbine control flap.

Check function of DDE.

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