Install the oil vacuum pump

• Guide out and remove the centering sleeves (1) from the crankcase in the direction of the arrow using standard tools (2).
• Replace the centering sleeves (1).

  Parts:  Centering sleeves

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• Insert and install centering sleeves (1) on the oil vacuum pump (2).

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• Position sprocket wheel (1) on oil vacuum pump (2).

  The labeling on the sprocket wheel (1) must point away from the oil vacuum pump (2).

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• Replace the screw (1).

  Parts:  Screw

  NOTE: TECHNICAL INFORMATION 
  The thread is a left-hand thread.
• Guide in and fix the screw (1).
  NOTE: TECHNICAL INFORMATION 
  Conduct the following operation with the assistance of a second person.

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• Counter-hold the sprocket wheel with the special tool 0 491 440 (23 0 020)  and tighten the screw (1) with standard tools (2).
  TIGHTENING TORQUES SPECIFICATION
  
  

  Sprocket wheel at the oil vacuum pump
  M8 Important - left-hand thread Replace screw.	1. Joining torque	5 Nm
  	2. Angle of rotation	90°

• Insert and position the oil vacuum pump (1) in the drive chain (2).

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• Replace screws (1).

  Parts:  screw

• Tighten down screws (1).

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Follow-up work 

• Refer to REFITTING ENGINE OIL PAN .
• Refer to INSTALLING STARTER MOTOR .
• Refer to INSTALLING THE ACOUSTIC COVER FOR THE OIL SUMP .
• Refer to INSTALLING FRONT AXLE COMPLETELY .
• Refer to TIGHTENING THE SCREWS ON THE LEFT AND RIGHT FRONT AXLE SUPPORT .
• Refer to SECURING THE SPRING STRUT ON THE WISHBONE ON THE BOTTOM LEFT AND RIGHT .
• Refer to SECURING THE WISHBONE ON THE TOP LEFT AND RIGHT ON THE SWIVEL BEARING .
• Refer to REMOVING THE MOBILE LIFTING TABLE .
• Refer to IF INSTALLED: CONNECT THE CONNECTOR OF THE ACTIVE STABILIZER .
• Refer to INSTALLING THE BRAKE CALIPER AT THE FRONT LEFT AND RIGHT .
• Refer to SECURING THE ANTI-ROLL BAR LINK ON THE LEFT AND RIGHT TO THE ANTI-ROLL BAR .
• Refer to IF INSTALLED: INSTALL THE SILENCER OF THE STATIONARY HEATING (ADDITIONAL WORK FRU NO.: 31 11 905) .
• Refer to INSTALLING LEFT AND RIGHT BRAKE VENTILATION DUCT .
• Refer to SECURING THE WIRING HARNESS FOR THE EPS ON THE FRONT AXLE SUPPORT .
• Refer to INSTALLING THE REINFORCEMENT STRUT ON THE ENGINE MOUNT ON THE LEFT AND RIGHT .
• Refer to TAKING ENGINE OUT OF INSTALLATION ORIENTATION .
• Refer to INSTALLING THE WHEEL ARCH COVER ON THE FRONT LEFT AND BOTTOM RIGHT .
• Refer to INSTALLING THE REAR SECTION OF THE FRONT WHEEL ARCH COVER ON THE LEFT AND RIGHT .
• Refer to INSTALLING THE COVER OF THE STEERING ASSEMBLY ON THE LEFT AND RIGHT .
• Refer to INSTALLING THE FRONT LEFT AND RIGHT WHEELS .
• Refer to INSTALLING CLEAN AIR PIPE, TOP .
• Refer to INSTALLING INTAKE SILENCER HOUSING .
• Refer to INSTALLING THE COVER ON THE LEFT AND RIGHT IN THE ENGINE COMPARTMENT AT THE TOP .
• Refer to INSTALLING THE SIDE HOOD SEAL ON THE LEFT AND RIGHT .
• Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
• Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
• Refer to INSTALLING ACOUSTIC COVER .
• Refer to FILLING ENGINE OIL .
• Refer to OPENING THE OIL FILLER CAP .
• Refer to CONNECTING NEGATIVE BATTERY CABLE .
• Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .
• Refer to CHECKING ENGINE OIL LEVEL .
• Refer to INSTALLING REAR UNDERBODY PROTECTION .
• Refer to INSTALLING THE CENTER UNDERBODY PROTECTION .
• Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
• Refer to INSTALLING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
• Refer to TAKING HOOD OUT OF THE SERVICE POSITION .