Installing the flywheel

• Clean all the screw threads (1).

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• Use set of special tools 2 285 058 .

  Description
  Twist drill
  Thread cutter M12x1.5
  Deep stop
  Screw in tool

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• Assemble tool set.

  Number	Description
  1	Tool holder
  2	Thread cutter M12X1.5

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• Mark screwing depth (A) on the thread cutter (1) from the special tool set 2 285 058 with a commercially available tool (2).
  TECHNICAL DATA SPECIFICATIONS
  
  

  Screw-in depth of thread cutter
  Screw-in depth	18 mm

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  NOTE: To provide a better overview: Shown with engine removed.
• Screw in the thread cutter (1) from the set of special tools 2 285 058 up to the screw-in depth (2) in the arrow direction.
  TECHNICAL DATA SPECIFICATIONS
  
  

  Screw-in depth of thread cutter
  Screw-in depth	18 mm

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• Make sure that the thread cutter is (1) not  pressed up against the timing chain (3).
  NOTE: TECHNICAL INFORMATION 
  Handle the timing chain carefully  to protect the timing chain and timing chain drive from damage.
• Make sure that the screw-in depth (2) of the screw tap (1) is not exceeded.

  The thread cutter (1) must not come into contact with the timing chain (3).

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• Note the installation position of the magnet wheel (1).
• Position the magnet wheel (1) on the crankshaft.

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• Replace screws (1) to (8).

  Parts:  Screws

• Position the flywheel (B).
• Screw in flywheel bolt (1) to (8) by hand.
• Set flywheel (B) with the special tool 0 494 034 (11 9 261)and screw tight with the special tool 0 494 130 (11 9 264). 
• Make sure that the tightening sequence starts with the dowel pin (A).
  Fig 1: Flywheel Screws Tightening Sequence

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• Tighten the flywheel bolts in the sequence (1) to (8) (note the angle of rotation in the next step).
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  Flywheel to crankshaft
  M12x1.5 Replace screws.	Tightening torque	45 Nm
  	Angle of rotation	45°

• Apply all flywheel bolts (1) with an angle of rotation of 45° by using the special tool 0 490 504 (00 9 120) .
  NOTE: Mark all the flywheel bolts (1) with a vertical line.
• Remove special tool 0 493 938 (11 9 260) .

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Follow-up work 

• Refer to INSTALLING AUTOMATIC TRANSMISSION (ALL-WHEEL DRIVE VEHICLE) (GA8HP51Z) .
• Refer to FASTENING THE PROP SHAFT (PARTIALLY REMOVED) .
• Refer to INSTALLING THE RETAINING PLATES .
• Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
• Refer to INSTALLING THE HEAT SHIELDS .
• Refer to INSTALLING EXHAUST SYSTEM .
• Refer to INSTALLING THE LEFT AND RIGHT REAR DIFFUSER .
• Refer to INSTALLING THE TENSION STRUT AT THE RIGHT REAR AND IF NECESSARY, ON THE LEFT SIDE .
• Refer to REMOVING STARTER MOTOR .
• Refer to INSTALLING THE ACOUSTIC COVER FOR THE OIL SUMP .
• Refer to ACTIVATING VEHICLE-SPECIFIC HIGH-VOLTAGE OR LOW-VOLTAGE ELECTRICAL SYSTEM .
• Refer to CHECKING/TOPPING UP THE OIL LEVEL IN THE AUTOMATIC TRANSMISSION .
• Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
• Refer to INSTALLING THE STIFFENING PLATE .
• Refer to INSTALLING FRONT UNDERBODY PROTECTION .
• Refer to INSTALLING ACOUSTIC COVER .