Trunk / Liftgate: Adjustments
Rear Lid, Adjusting
Special tools, testers and auxiliary items required
• Adjusting Gauge (3371)
Panel Gap Dimensions
• All rear lid measurements are given in mm with a ± 0.5 mm tolerance.
• Dimension - A - = 4.5 mm
• Dimension - B - = 4.5 mm
• Dimension - C - = 5.0 mm
• Dimension - D - = 4.5 mm
• Dimension - E - = 2.2 mm all around
• Make sure the gap is parallel to the body.
• The gas-filled struts must be installed before adjusting a new rear lid.
Adjusting with Striker Pin
• Before adjusting, install adjustment buffer on rear lid side completely, refer to Adjusting screw for adjustment buffer, refer to Adjusting screw for adjustment buffer => [ Adjustment Buffer Screw ].
Vehicle with Solid Striker Pin
- Remove rear cross panel trim.
- Loosen combination nuts - 1 -, the striker pin - 2 - must be able to move.
- Note different versions.
Vehicle with Closing Aid
- Loosen combination screws, striker pin - 2 - with motor for closing aid - 1 - must be adjustable.
- For easier installation, there are markings on rear cross panel you can use to adjust the striker pin.
Upper and Lower Striker Pin End Position
• To adjust rear lid, closing aid motor must be in lid closed position (lower end position).
• Striker pin cannot be installed in position not visible in drawing (upper end position) - 1 - because rear lid can contact block when closing and be damaged.
• Closing aid motor cannot be closed electrically to adjust rear lid.
- Before adjusting rear lid, completely install upper part of adjustment buffer on rear lid side, refer to => [ Adjustment Buffer Screw ].
- Tighten the nuts - 1 - by hand.
- Close rear lid and align with body contour.
- Rear lid lock must be engaged in main detent (2nd lug) during this.
- Open the rear lid in this position and tighten the nuts - 1 - to the tightening specification, refer to => [ (Item 13) Nut ] Rear Lid Assembly Overview.
Striker Pin with Closing Aid
- If the same striker pin is reinstalled, mark this location before removing.
• Striker pin with closing aid can only be installed in lid closed position, same as delivery condition for a new part.
• If the same striker pin is reinstalled, open rear lid and unlock rear lid lock or latch with a screwdriver, for example.
• Closing aid runs in lid closed position = basic position.
• Now remove connector from closing aid and rear lid lock can be opened again by activating grip piece in rear lid.
- Tighten the nuts - 1 - slightly.
- Close the rear lid and align it with the body contour.
- Rear lid lock must be engaged in main detent (2nd lug) during this.
- In this position, open the rear lid and tighten the nuts - 1 - to the tightening specification. Refer to => [ (Item 13) Nut ] Rear Lid Assembly Overview.
- Tighten the screws - 2 - for the stop on the body - 1 - to the tightening specification. Refer to => [ (Item 11) Screws ] Rear Lid Assembly Overview.
- Turn the adjustment buffer - arrow - just enough until the closed rear lid with buffer stop on rear lid side makes contact with the stop.
- Check whether rear lid still closes easily, repeat adjustment on the adjustment buffer if necessary.
- If rear lid is difficult to close, screw adjustment buffer in.
Adjustment Buffer Installation Position
1 Rear Lid
• When adjusted correctly, adjustment buffer - 3 - must contact stop buffer - 2 - with light pretension when rear lid is closed.
2 Rear Lid Side Stop
• Installing, refer to Upper Stop, Lid Side => [ Lid Side Upper Stop ]
• Tighten screws to 8 Nm when installing.
3 Body Side Adjustment Buffer
• Adjustment buffer secured on body-side with bolts
• Tighten screws to 8 Nm when installing.
• Height adjustment is carried out using adjusting screw
• When rear lid is adjusted correctly, adjustment buffer must make contact with light pre-tension with stop on rear lid side.
4 Side Panel
Adjustment Buffer Screw
- Before adjusting rear lid, install adjusting screw - 2 - with protective cap - 1 - completely in adjustment buffer - 3 -
- Remove the adjusting screw - 2 - just enough until the cap - 1 - makes contact with light pre-tension with stop on rear lid side when the rear lid is closed.
- Check whether lid sits without play and in flush position by pushing or pulling on the side edge of rear lid below rear window.
- If necessary, repeat adjustment.
Lid Side Upper Stop
- When installing stop - 2 - tighten screw - 1 - to 8 Nm.
- Height adjustment is carried out using adjustment buffer on body side.
Lid Side Lower Stop
- To remove, bore out the rivet heads, drive out the rivet shafts and remove the lid.
- When correctly adjusted, the adjustment buffer just contacts the lower stop on the body side; if necessary adjust the buffer.
Body Side Stop
- Install the stop - 1 - until it fits securely into the internally threaded pop rivet - 2 -.
- The internally threaded pop rivet must fit flat when installed.