Sunroof - Leak Repair Procedure

REF.NO. 77/9

TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS

DATE: April, 1982

SUBJECT:
SEALING THE FRAME OF SLIDING ROOF
MODELS 123 AND 126

Since August 1981, the area of the spot-welded reinforcing plate on the sliding roof frame is being treated with additional sealing material. By doing this, water is prevented from leaking into the interior of the vehicle at the front area of the headliner.





If drops of water appear at the front of the headliner in earlier production vehicles, the front part of the sliding roof frame must be loosened and subsequently sealed along the entire length of the rails (be certain drains are open).

NOTE:
Water leakage can occur, e.g. when braking the vehicle, because water cannot drain sufficiently fast through the two front drainage openings and then seeps through the spot-welded reinforcing plate on the sliding roof frame (fig. arrows).

Spare Part

Name Part No.

MB Universal sealant, black 003 989 01 71