Installing the automatic transmission (GA8HP51Z)

Checking installation position of torque converter 

• Check the installation dimension between the contact surfaces (1)  and the outer edge (2)  of the threaded hole of the torque converter with the special tool 0 490 189 (00 2 550) .

  See REMOVING AND INSTALLING/REPLACING TORQUE CONVERTER .

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• Check the fitting sleeves (1)  for correct seating and damage and replace if necessary.

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• Turn the torque converter until the bore of the torque converter is aligned with the bore of the drive plate.
• Install the transmission.
• Fit the transmission bolts (arrows) and apply hand-tight.

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• Install the exhaust bracket (2)  .
• Tighten down screws (1)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Transmission to engine
  M8	tightening torque	19 Nm
  M12	tightening torque	66 Nm

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• Tighten nuts (1)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Catalytic converter to holder
  M8 Replace screws. Replace nut.	tightening torque	19 Nm

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• Tighten the transmission bolts in the sequence (1)  to (9)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Transmission to engine
  M8	tightening torque	19 Nm
  M12	tightening torque	66 Nm

  Fig 1: Transmission Bolts Tightening Sequence

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• Release screw (1)  and screw (2)  .
• Remove the special tool 0 494 451 (24 4 160) .

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• Install the cover (1)  .

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• Replace screws.

  Parts:  Screws

• Turn the engine with the special tool 0 493 380 (11 6 480) on the vibration damper in the direction of rotation until the screw (1)  becomes visible in the recess.
• Tighten the torque converter screw with the special tool 0 491 667 (24 1 110) .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Torque converter to flywheel
  M10 Replace nuts.	tightening torque	56 Nm

• Repeat the process for all screws.

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• Remove special tool 0 494 213 (24 2 390) from sealing sleeve (1)  in the arrow direction.

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• Slide connector (1)  in the arrow direction and lock it by turning it.

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• Install the ground strap (2)  .
• Tighten nut (1)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Grounding strap/grounding cable to transmission/body
  M8	tightening torque	19 Nm

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• Replace sealing rings.

  Parts:  Sealing ring

• Install hydraulic lines (2)  on transmission.
• Position and tighten the screw (1)  .
  TIGHTENING TORQUES SPECIFICATION
  
  

  Transmission oil line to transmission
  M6x25 Replace the sealing ring.	tightening torque	8 Nm

• Position and tighten the screw (3)  . Tightening torques
  TIGHTENING TORQUES SPECIFICATION
  
  

  Transmission oil line on holder
  M6	tightening torque	4 Nm

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Follow-up work 

• Refer to FASTENING THE PROP SHAFT (PARTIALLY REMOVED) .
• Refer to INSTALLING TRANSMISSION CROSS MEMBER .
• Refer to INSTALLING THE RETAINING PLATES .
• Refer to INSTALLING THE HEAT SHIELD .
• Refer to INSTALLING STARTER MOTOR .
• Refer to INSTALLING THE COMPLETE EXHAUST SYSTEM .
• Refer to INSTALLING THE RIGHT REAR TORSION STRUT .
• Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
• Refer to ACTIVATING VEHICLE ELECTRICAL SYSTEM .
• Refer to CHECKING/TOPPING UP THE OIL LEVEL IN THE AUTOMATIC TRANSMISSION .
• Refer to INSTALLING THE STIFFENING PLATE .
• Refer to INSTALLING UNDERBODY PROTECTION AT REAR .
• Refer to INSTALLING ACOUSTIC COVER AT REAR .
• Refer to INSTALLING THE REAR HOOD SEAL .
• Refer to INSTALLING ACOUSTIC COVER .