646719 Removing and installing pneumatic spring for rear window

WM 646719 Removing and installing pneumatic spring for rear window

Technical values





Preliminary work

Information

- To allow easier access to the pneumatic spring housing, the roof trim panel must be loosened slightly at the back once the following parts have been removed.

1. Remove rear roof trim panel. => 708519 Removing and installing rear roof trim panel - section on "Removing"
2. Remove D-pillar trim panel. => 706919 Removing and installing D-pillar trim panel - section on "Removing"
3. Remove rear grab handles left and right. => 683719 Removing and installing rear grab handles - section on "Removing"

Removing pneumatic spring for rear window

CAUTION

When working on the pneumatic spring of the rear window, the following safety measures must be observed, amongst others:

- To remove the pneumatic springs, they must be in the idle state: rear window open.
- After removal of pneumatic springs, the rear window must be secured against accidental closure.
- Pneumatic springs must not be opened by force - extreme internal pressure.





1. Open rear lid and rear window.
2. Unscrew fastening screws -2-.





3. Unclip and remove the deformation element -1-.





Information

- A new lid must be used during installation.

4. Pull cover -3- off in a downward direction and remove it ( -arrows A- ).





5. Remove the remaining sealing material on the body.
6. Secure rear window against accidental closure.
7. Loosen safety clips of pneumatic springs for rear window -4- at ball sockets using a screwdriver and remove the clips.





8. Pull the pneumatic springs for the rear window -4- from the ball heads and remove.






Installing pneumatic spring for rear window





1. Secure rear window against accidental closure.
2. Position safety clips of pneumatic springs for rear window -4- at ball sockets and snap into place.





3. Press pneumatic spring for rear window -4- onto the ball heads until the safety clips are felt to engage.





4. Fit new cover.
4.1. Position cover -3- at the front, bend out slightly and insert into the opening at the back.
4.2. Press cover down all the way round until the butyl seal of the cover is touching the body evenly.
4.3. Check that the cover makes contact all the way round and is not bending inwards.





5. Position and clip in deformation element -1-.





6. Screw in fastening screws -2- and tighten to the specified tightening torque. => Tightening torque: 3 Nm (2 ftlb.)






Subsequent work

1. Install rear grab handles left and right. => 683719 Removing and installing rear door grab handle - section on "installing"
2. Install D-pillar trim panel. => 706919 Removing and installing D-pillar trim panel - section on "installing"
3. Install rear roof trim panel. => 708519 Removing and installing rear roof trim panel - section on "installing"