Hi, i would like to ask you if someone can tell me where i can find the relay+fuse for the fuel pump and the fuel presuure regulator.
I know that may be is a stupid question but here in Europe MB sell cars with a owner manual absolutely useless, i mean without any specification or technical information.
I think that in US is better because imported car.
Many thanks
Alberto

It will be very helpful to know what car we are talking about. You profile does not show one either.

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87 420 SEL
Looking for a nice mid 80's MB diesel.
87 BMW 528e (Sold)
99 TOYOTA 4Runner
1989 Honda Accord (Sold)
1988 Honda Accord (Total)

Clk 430 1998

Alberto,
Dont know your car, mine is 260E 1988, and cannot help precisely.

This site is really fantastic, for all the good info that are given by members.

What I often do in similar case, I go to the online catalogue on this site and look for the spare part, very often there is a pixture that helps to see the part what it loos like and then I try to find it on my engine.

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Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8, 180 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 345 000km

Son's one: GLK class 220CDI, 2009, W204

Sold E class 260E, W124, 1988 beloved car sold after 489 000 kilometres of reliable services (engine M103, clutch and 5 speed manual gear box all original).

E-class, W210 320CDI, 2000[/B], 225 000km, Sold

im sure the c class is the same so this might help
http://www.benzworld.org/publications/pub.asp?id=307
fuel pressure regulator dosnt have a fuse or relay

The fuel pressure regulator is part of the fuel filter on the 112/113 engines. It is in the rear.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

THANKS GUY,
LAST WEEK I CHANGED BOTH PUMP AND FUELFILTER-REGULATOR SO NOW I MA SURE THAT THE PRESSURE IS oK.
I WILL CHECK THE PUMP RELAY WHEN I WILL FIND IT BECAUSE THE PUMP I WORKING BUT DOES A STRANGE NOISE INTERMITTENTLY..........
PUMP AND FILTERA RE NEW AND MB SPARE PARTS.
CAR IS RUNNING WELL I MA JUST AFRAID THAT SHE WILL BURN ONE OTHER PUMP MAY BE FOR SUKHING AIR????
DO YOU SUGGENST ME SOME TEST TO DO?
CHEERS
ALBERTO