Can anyone explain the procedure for adjusting the timing of my 90 300E's sunroof? It moves freely, but goes forward when it should go up, back when down, etc.

Access the adjustment knob in the left rear corner of your trunk. It is located on the sunroof motor. Pull the knob out to the first click, if you go past the first click to the second click you wont be able to adjust. If that happens push back in one click. Rotate the adjustment knob one quarter of a turn in either direction, then push the knob back in. If it goes in the right direction keep turning the same way. If it doens't go the other way half a turn. You get the picture....



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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM