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  #1  
Old 12-28-2007, 07:33 PM
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Join Date: Nov 2007
Location: Puerto Rico Isla del Encanto
Posts: 6
Unhappy Long Gone my Vacum pump 300cd

Hey Guys im Very Sad my car does not run the way it used to i need to replace the vacum pump and i have to do it my self. Please if some body can tell me the procedure that would be great. Thanks Guys your the best there is.

Happy Holidays from Diesel Boy

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  #2  
Old 12-28-2007, 08:27 PM
pawoSD's Avatar
Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,438
Its fairly easy to replace. Obtain new pump and gasket. Disconnect vacuum line coming off pump. Undo the small allen bolts that hold the pump to the engine block. Remove forwards. Install new pump with gasket (no sealant or anything needed) straight onto engine. Mount with all the allen bolts. Reattach vac line.

I am pretty sure thats all there is to it.
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  #3  
Old 12-28-2007, 08:28 PM
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Currently Benzless :(
 
Join Date: Dec 2004
Location: Palm Springs, CA
Posts: 777
there are rebuild kits for the vacuum pump available, from what I've read here its not difficult, but it does require attention to detail as some parts could be put in backwards... also, some folks had parts left over if I remember correctly.

Please post your experiences
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  #4  
Old 12-28-2007, 08:29 PM
pawoSD's Avatar
Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,438
Quote:
Originally Posted by Mister Byrnzoil View Post
there are rebuild kits for the vacuum pump available, from what I've read here its not difficult, but it does require attention to detail as some parts could be put in backwards... also, some folks had parts left over if I remember correctly.

Please post your experiences
Yeah, rebuilding is farily easy to do if you are up to it. If not....new pumps aren't all that expensive....
__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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  #5  
Old 12-29-2007, 12:20 AM
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Join Date: Nov 2007
Location: Puerto Rico Isla del Encanto
Posts: 6
Thanks Guys I shall tried buying a new one. this would be my daily driver.
And if somebody can still be of help please write. Thanks again you are the Benz Masters.
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  #6  
Old 12-29-2007, 06:40 AM
ImBroke's Avatar
Diesel way of Life
 
Join Date: Jun 2004
Location: Cleveland, NY
Posts: 2,230
Be very careful of the allen heads, even though I sprayed stuff in them to clean them out, I still stripped one. Luckily I could pound a 3/8 socket over it and get it that way. I removed my AC compressor to get to the two bottom bolts. My AC system hasn't worked in a while and was empty, so no big deal there. Not sure if you can just remove two bolts and loosen the third and rotate it out of the way or not. I'm more of an all or nothing kind of guy.lol I had a spare pump, which was nice. The rebuild kits are like 80 or so, and I plan on doing that in a couple of months. Good luck with it, it's fairly simple.

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