Adjusting Mounting Unit (Drive Mechanism)

Information 

The precondition for an accurate adjustment of the mounting unit is that the sunroof cover be completely closed.

Information 

• The basic adjustment of the mounting unit (drive mechanism) on the left side is set with a forward travel of 2 mm  .

An adjusting device with a corresponding inclination is used for this on the left side.

• On the right side an adjusting device with a 90° angle is used. 

1. Position adjustment blocks at the lifting mechanism.
   1. 1.1. Position left adjustment block -1 L-  between pin -2-  and holder -3-  (-arrow A-  ).
      Fig 1: Positioning Adjustment Blocks At Lifting Mechanism

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   2. 1.2. Position right adjustment block -1 R-  between pin -2-  and holder -3-  (-arrow B-  ).

   Information 

   Two people are needed to adjust or inspect the holders!

2. Adjust mounting unit.
   1. 2.1. Insert a screwdriver through the opening in the casing -2-  and push the lower drive shaft -3-  so -arrow A-  that the right holder -4-  is positioned against the adjustment block -1 R-  , -arrow B-  .
      Fig 2: Adjusting Right Holder

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   2. 2.2. Insert a screwdriver through the opening in the casing -2-  and push the upper drive shaft -3-  so -arrow A-  that the left holder -4-  is positioned against the adjustment block -1 L-  , -arrow B 
      Fig 3: Adjusting Left Holder

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3. Guide left sunroof motor -4-  behind the bracket -5-  from below and slide the gear wheel for the motor between the two drive shafts so that the drive shafts cannot move.
   Fig 4: Installing Left Sunroof Motor

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4. Secure left sunroof motor using the two fastening screws -2-  . → Tightening torque: 5.5 Nm (4.0 ftlb.) 
   Fig 5: Securing Sunroof Motor

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5. Fold the closing aid holder upwards in the direction of the arrow. Make sure that the strut -inset-  for the closing aid is engaged properly. Tighten fastening screws -1-  . → Tightening torque: 9.5 Nm (7.0 ftlb.) 
   Fig 6: Fitting Closing Aid On Roof Assembly

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6. Slide the gear wheel of the right sunroof motor -2-  between the drive shafts and press it onto the drive pipe.
   Fig 7: Installing Right Sunroof Motor

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7. Secure sunroof motor using the two fastening screws -1-  .

   → Tightening torque: 5.5 Nm (4.0 ftlb.) 

   Fig 8: Securing Sunroof Motor

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8. Remove adjustment blocks -1 L, 1 R-  at the lifting mechanism -arrows-  .
   Fig 9: Removing Adjustment Blocks

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9. Close rear window cover and check adjustment. → 648615 ADJUSTING REAR WINDOW COVER
10. Switch on ignition and open and close sunroof cover completely.

    Switch off ignition and remove ignition key.

11. Check adjustment again at the mounting unit using the adjustment blocks and adjust if necessary.