300SD (140.134) L6-3.5L DSL Turbo (603.971) (1993)
7
Screw out nut (arrow) at bottom of window guide rail.
8
Remove window guide rail through installation opening.
9
Screw out mounting screw for lock cover, unclip lock cover and remove (arrows).
10
Screw out screw (arrows) on door lock.
Tightening torque: 8 Nm