300SDL (126.125) L6-3.0L DSL Turbo (603.961) (1987)
8 Unscrew screw on automatic reel for safety belt and put automatic reel aside.
9 Unscrew fastening clamps for tubing on rear pillar.
10 Loosen sliding roof frame at the rear and push away slightly, while pushing tubing into trunk until tubing can be pulled out of sliding roof frame.
11 Pull tubing forward into vehicle interior and remove through cutout for rear window.
Installation:
12 Introduce new tubing from inside vehicle first into trunk and then into sliding roof frame.