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

__________________
1967 250 S
1967 280SE
1968 250S
1971 280 SE
1973 220
1974 280 S
1975 450 SEL
1976 220 D
1979 300SD
1983 300 SD
1985 230 TE euro
1986 280SL
1986 500 SEL euro
1986 190E 2.3
1990 300 SE
2003 C230 K
2004 C230 K
1987 560SEL
1987 300SDL now in canada
2005 C230
1998 C43 AMG Sold to DON
1993 190E 2.6
300TD Former daily driver Totaled
current:
R320 CDI
Ram 2500 Cummins

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

__________________
Now:
2018 Tesla Model X
1999 S500 Grand Edition 164k
1992 300D 2.5 Turbo 287k
2005 E320 4MATIC wagon
1991 Alfa Romeo 164L 99k (sleeping for a while)

Then: 96 Lincoln TC, 93 Lincoln TC, 87 560 SEL, 87 300 SDL, 80 300D, 89 560 SEC

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