The passenger side door on my 300CE is hard to close. It takes sometimes two tries to close it, unless a window or other door is open. What can I adjust to allow the door to close properly? I believe door adjustments are unique on the W124 coupes due to the nature of the glass and seal design.

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1989 300CE

same here, waiting for answer.

I like the sound of the heavy door when closing though

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1996 E320 since 1/16/08, 171K miles as of Feb 2011

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1989 300CE - R.I.P. Dec 29 2007
Other MBs (sold): 1992 300E-24 - 1979 350SLC - 1984 230E - 1990 300CE

I have a 94 e320 sedan, but with the drivers door having the same issue you mentioned. I spray WD-40 at the latch on the door (not the part on the body that doesn't move) and it seems to last a few months, then I need to respray it again. I believe you call it the latch, as it is on the door right behind the outside pull/door handle

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1994 E320, 145,000 miles

seems like adjusting the striker plate is the most common fix

search "striker plate door" and a bunch of info is available on here

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1989 300ce smoke silver / brazil, in a constant state of flux ~~~