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 12-10-2015, 11:55 AM
ILUVMILS's Avatar
Senior Member
 
Join Date: Sep 2002
Posts: 3,084
I'd check the low pressure fuel circuit before you replace the glow plugs. FWIW, I've never seen a faulty CDI glow plug or relay that didn't turn the CEL on......
Reply With Quote
  #2  
Old 12-10-2015, 12:05 PM
Registered User
 
Join Date: Aug 2009
Location: MN
Posts: 1,261
Quote:
Originally Posted by ILUVMILS View Post
I've never seen a faulty CDI glow plug or relay that didn't turn the CEL on......
X2


Check your fuel system.

How old is your fuel filter?
Check your injectors for an open return fuel circuit.

A $69.99 UltraGauge will let you see the fuel pressure in the fuel rail. You can see what the pressure is during the start sequence. It has to be about 3500psi for the injectors to fire.
One injector with an open or weak return fuel valve can bleed off enough pressure to prevent a cold start, but work find the rest of the day.
__________________
Greg
2012 S350 BlueTEC 4Matic
2007 ML 320 CDI
2007 Leisure Travel Serenity
2006 Sprinter 432k
2005 E320 CDI
1998 SLK230 (teal)
1998 SLK230 (silver)
1996 E300D 99k, 30k on WVO
Previous:
1983 240D, on WVO
1982 300D, on WVO
1983 300CD, on WVO
1986 300SDL 237k, 25k on WVO (Deerslayer)
1991 350SDL 249k, 56k on WVO - Retired to a car spa in Phoenix
1983 380 SEC w/603 diesel, 8k on WVO
1996 E300D 351k, 177k on WVO
Reply With Quote
Reply

Bookmarks


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 10:48 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page