Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-17-2012, 06:23 PM
RamahX's Avatar
Ramah is in Israel ;-)
 
Join Date: Mar 2009
Location: Dawsonville, GA
Posts: 90
Fuel filter confusion

'87 300SDL - what is this small filter? Its under the air filter, and a hose next to it is plugged. Not going to mess with it because car runs ;-> Also, what I that round module it's connected to...

I know, I know, I should read up on it... So don't flame me too bad. Still wrapping my mind around the whole diesel thing. But lovin every minute of it *singing*
Fuel filter confusion-imageuploadedbytapatalk1337293270.472721.jpg

__________________
"Well, once again, we find that clowns and anarchy don't mix..." - The Tick
'94 E320 ~ Wikel
'87 300SDL ~ Frieda
'87 190E ~ Thurmond III
'84 944 ~ Schrickelgruber
'86 535i ~ Joerg

Last edited by RamahX; 05-18-2012 at 12:53 AM.
Reply With Quote
  #2  
Old 05-17-2012, 06:35 PM
Jeremy5848's Avatar
Registered Biodiesel User
 
Join Date: Mar 2006
Location: Sonoma Wine Country
Posts: 8,394
I'm not familiar with the SDL but it looks like that is an air/vacuum filter in the EGR plumbing.
__________________

"Buster" in the '95

Our all-biodiesel family
1995 E300D (W124) . .239,000 miles My car
1996 E300D (W210) . .313,000 miles Wife's car
Santa Rosa population 170,685 (2012)
Total. . . . . . . . . . . . 722,685
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
Reply With Quote
  #3  
Old 05-17-2012, 10:05 PM
Registered User
 
Join Date: Apr 2007
Posts: 342
Yes. On the left side of the engine will be the normal pre (clear) and main (canister) filter--for FUEL. Added later was the cheezy oil-coalescing filter for the EGR system. Don't ask in this thread, but research on thine own--about alternatives to this filter and/or "options" for the EGR system.
__________________
James Marriott
2003 Buick Regal
1983 300D (228k, frau Auto)
1996 Suburban K2500 (192k, 6.5 turbo diesel/4WD towmaster 10,000)
www.engineeringworks.biz
1987 300SDL junker 170k
1982 300SD junker, 265k
Reply With Quote
  #4  
Old 05-17-2012, 10:38 PM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,377
the shutoff diaphragm is known to rupture and dump oil into the cabin... Booster, etc... the "filter" is really just a clear spot in the vacuum system to allow a heads up that it has occured prior to gobs of oil dumping onto your pants...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #5  
Old 05-17-2012, 10:42 PM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,359
Answer

It is an air filter, and diagnostic tool/protective device.

You can look at it to see if the vacuum system is drawing engine oil in.

Here is another application of the same function.
"Hens tooth" 1985 300D vacuum filter dark black



.
Reply With Quote
  #6  
Old 05-20-2012, 01:35 AM
RamahX's Avatar
Ramah is in Israel ;-)
 
Join Date: Mar 2009
Location: Dawsonville, GA
Posts: 90
Ok, mine was on the line from the vac transducer/ exhaust gas recirculation valve.

Should I put one on the shut-off valve line also?
__________________
"Well, once again, we find that clowns and anarchy don't mix..." - The Tick
'94 E320 ~ Wikel
'87 300SDL ~ Frieda
'87 190E ~ Thurmond III
'84 944 ~ Schrickelgruber
'86 535i ~ Joerg
Reply With Quote
  #7  
Old 05-20-2012, 01:59 AM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: SF Bay Area
Posts: 20,799
MB didn't think that line needs a filter.

Sixto
87 300D^2
Reply With Quote
  #8  
Old 05-20-2012, 03:24 AM
whunter's Avatar
Moderator
 
Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,359
Answer

Quote:
Originally Posted by RamahX View Post
Ok, mine was on the line from the vac transducer/ exhaust gas recirculation valve.

Should I put one on the shut-off valve line also?
I would suggest it.

.
Reply With Quote
  #9  
Old 05-20-2012, 07:35 PM
RamahX's Avatar
Ramah is in Israel ;-)
 
Join Date: Mar 2009
Location: Dawsonville, GA
Posts: 90
Since I'm disabling the EGR and AVR I'm moving it to the shutoff line.

Of course, AFTER I diagnose and fix my present vac problem (separate post). I now have my own Mityvac ;->
__________________
"Well, once again, we find that clowns and anarchy don't mix..." - The Tick
'94 E320 ~ Wikel
'87 300SDL ~ Frieda
'87 190E ~ Thurmond III
'84 944 ~ Schrickelgruber
'86 535i ~ Joerg
Reply With Quote
  #10  
Old 05-20-2012, 10:29 PM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 33,786
Quote:
Originally Posted by sixto View Post
MB didn't think that line needs a filter.

Sixto
87 300D^2
MB also wants you to pay them to diagnose your problems and buy all your parts from the Dealer and have them installed by their Mechanics; and no expense should be spared to do that.
__________________
84 300D, 82 Volvo 244Gl Diesel
Reply With Quote
  #11  
Old 05-20-2012, 11:16 PM
RamahX's Avatar
Ramah is in Israel ;-)
 
Join Date: Mar 2009
Location: Dawsonville, GA
Posts: 90
I believe that's part of their "spare no wallet" engineering strategy ;->

__________________
"Well, once again, we find that clowns and anarchy don't mix..." - The Tick
'94 E320 ~ Wikel
'87 300SDL ~ Frieda
'87 190E ~ Thurmond III
'84 944 ~ Schrickelgruber
'86 535i ~ Joerg
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 09:18 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page