560SEC fuel pressure regulator
 

The fuel pressure regulator broke, litterly broke, at the vacuum nipple. When removing the air cleaner....I guess I pulled too hard and the front vacuum nipple of the fuel pressure regulator broke off.

Does anyone have the part # handy for the fuel pressure regulator on a '89 560 SEC (M117.968 ) or whatever other engine model that uses the same regulator? Would really appreciate the advice.
Thanks
Rick

the hose isn't for vacuum, and that unit technically is not a regulator, it is a dampner, the rubber fitting is just a vent, if the internals of the unit fail fuel will come out of the hose and will be directed into the crank case instead of on the hot engine possibly causing a fire. the hose can be replaced i believe, but i do not find a part number, the unit is mercedes number 000-078-11-89 list is $454.00

http://catalog.worldpac.com/mercedesshop/sophio/quote.jsp?header=header.jsp&footer=&product=000-078-11-89&partner=mercedesshop&baseurl=http://catalog.peachparts.com/&clientid=catalog.mercedesshop&cookieid=2330QUHDC2430NWJSK

Hey Rick,

Did you change your regulator? I'm looking for a quick How To on that for my 89. Thanks for any info...

-m

Rick:

PM me as I have (2) good used I bought off ebay, have no use for both and whatever I paid for it, same to u. I think 65-75!

John1