Rear Door Window Regulator: Service and Repair

Preliminary work:
Door liner on rear door removed. Refer to "Replacement of Door Liner". Removal and Replacement







Vapor seal on interior door panel
pull off.
Retaining strap (1) on slider (2)
unclip and remove.
Electrical connections on window lift motor
disconnect.
Rivets (3) for fastening rear window lift mechanism to interior door panel
drill out (5 each); use 4.8 mm dia. bit. Observe installation note!
Slider (2) on window lift bar
move out by moving rear window lift back and forth (arrow).
Window (4)
move up by hand and secure with plastic wedge.
Rear window lift mechanism (5)
remove through installation opening.
Remaining pieces of rivets on rear window lift mechanism and in door shaft
remove.
Reinstall
in opposite order.

Installation note
When riveting the rear window lift mechanism onto the interior door panel ensure that the window lift is arrested in the interior door panel and makes full contact. Use pop rivets with shank diameter of 4.8 mm.

Commercially available tools
Pop rivet tool Fa. Gesipa Blindniettechnik GmbH
Model HN 1 NordenstraBe 13-39
Part no. 71 000 19 64546 Morfelden-Walldorf


NOTE: The window lift motor can be installed and removed without removing the window lift mechanism.


Removal, Installation
1 Pull off vapor seal on interior door panel.







2 Unclip retaining strap on window lift bar and remove.
3 Disconnect electrical connections on window lift motor.







4 Drill out rivets (5 each); use bit with diameter of 4.8 mm.
5 Remove slider by moving rear window lift mechanism back and forth on window lift bar.
6 Push window up by hand and secure against falling.
7 Remove rear window lift mechanism through installation opening in interior door panel.







8 Remove remaining pieces of rivets in rear window lift mechanism and in door shaft.
9 Insert rear window lift mechanism through installation opening in interior door panel and simultaneously guide slider into window lift bar.






Top catch

10 Position window lift mechanism in catches on interior door panel at top and bottom.






Bottom catch







11 Rivet rear window lift mechanism to interior door panel with 4.8 mm dia. rivets (5 each) and pop riveting tool. Ensure that rear window lift mechanism is flush against interior door panel.







12 Install retaining strap on slider in window lift bar.
13 Reconnect electrical connections on window lift motor.
14 Lubricate slider with MB-Lubricant Paste part No. 000 989 31 51.







15 Adjust window lift stop at top.
16 Check window adjustment, readjust if required.
17 Install vapor seal on interior door panel.
18 Install door liner.