Auto Parts: confussion about a part, mercedes benz 300e, fuel pressure regulator

Question
QUESTION: I have a 300e Mercedes with car problems.  My local mechanic found I have a fuel leak under the hood.  He called the Mercedes dealership and they say it is a governor regulator, but they asked a fortune for the small part.  My mechanic and they agree it is a 2" X 3" cylinder with 2 hoses.  I've called many local import parts dealers and they say they have nothing called a governor regulator.  They seem to think this is a fuel pressure regulator.    Do you think this is the same part?

ANSWER: Hi Cara,

I think it would be ok to assume that the two part names are probably being interchanged.

A fuel pressure regulator would have THREE attachments though. One for incoming fuel flow, one for outgoing, regulated fuel flow and a third for a vacuum source or electrical connector if it is digital and not mechanical.

Send a follow-up with your VIN and I'll try and locate a complete fuel rail with regulator for what will surely be less than the dealership wants JUST for the regulator.

Thanks for the question, I hope this information was helpful to you.
Fred
www.knucklebusters.us
570-453-0910
"Re-use is the best form of recycling" Help us recycle by purchasing used parts from us!
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---------- FOLLOW-UP ----------

QUESTION: Thank you so much for your answer.  My mechanic said there are 3 but he wasn't sure if the 3rd was a vacuum or what.  I will let him know what you said.
My 1990 Mercedes 300E has a 2.6 cyl motor.
The VIN is WDBEA30D7LB231461

Answer
Hi Cara,

First, Your VIN breaks down as follows:
1990 MERCEDES-BENZ 300E, SEDAN 4 DR, 3.0L L6 FI, GERMANY.

You state you have a 2.6l. Please confirm which you have. I can get you the injectors and rail (with regulator) but the price is not as low as I'd expect for a vehicle of that vintage. You are probably looking at $165.00 for the whole assembly including shipping to you. But that is for the 3.0 that your VIN lists and our interchange does not recognize a difference in the injectors/rail between the 2.6L and the 3.0L engines. To be sure, I would only pull the assembly from a vehicle/engine combination identical to yours. You can probably get just the regulator at a better cost from the supplier.

Thanks for the question, I hope this information was helpful to you.
Fred
www.knucklebusters.us
570-453-0910
"Re-use is the best form of recycling" Help us recycle by purchasing used parts from us!
Looking for an ASE Certified shop near you? ASE Certified Technicians are the BEST of the BEST!
Click here: http://www.ase.com/bluesealsearch/locator.php