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Old 05-05-1999, 11:24 AM
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Dear Friends,

I've got two little gripes with my diesel Ferrari.

1) When I first bought my 84 300D it (incorrectly) had a three pin indicator flasher unit installed. I recently swapped this for a two pin cheap one from K-Mart. Every now and then the indicator's interval between flashes decreases significantly making my car look like a disco from the early eighties... Help!!! Could the flasher unit be simply dodgy or could there be a more seious auto-electrical problem like a faulty voltage adaptor? (Might this explain why they put a three pin job in to slow the rate down?)

2) I understand the 123 series uses a vacuum-driven central locking system. It looks like I have a small leak somewhere because my car's central locking mechanism only works immediately after driving (give or take a few minutes). Is there a place where the leak is likely to be or could it be anywhere along the mechanism? Suggestions please!

Thanks in advance and thanks to this sites organisers for their excellent work!

David Rayment.
Old 05-05-1999, 09:10 PM
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The original flasher is an electronic relay.
Stick w/O.E. design parts.
Since your car has had around 15 birthdays I would suggest that you replace all six(6) vacuum diaphrams in the central locking system! If you replace only one element the other ones will fail shortly(been there done that) more than one time!!

Old 05-08-1999, 06:52 AM
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Dear M.B.Doc,

Thanks for your reply!

Sorry but what does O.E. mean? Also, are the six vacuum units expensive/difficult to replace?


David Rayment.

Old 05-08-1999, 09:02 PM
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O.E. = original equiptment as designed by Mercedes. To replace the elements you must remove the door panels & trunk inner panels.
Not to hard on this model car. Mercedes makes a techinal C.D. with repair info for this model car. 1-800-for-merc(edes).
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