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 > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-28-2009, 10:09 AM
Registered User
 
Join Date: Jan 2008
Posts: 92
Hot Start issue (M111.960)

My W124 E220(M111.960) has trouble starting when hot.

Symptoms
1) When car is hot/warn I need to crank longer.
2) When car starts it shows symptoms of miss-fire, feels like only couple of cylinders have fired, Pressing accelerator fixes the issue.
3) I don't see this issue when Re-starting interval is short ( < 1 min).

Diagnosis
1) No error codes
2) Fuel pump starts humming when fuel level is low ( < reserve), otherwise operates normally.

Solution ?
From what i could gather from previous posts is, it could be
1) Fuel pump ?
2) Accumulator ?
3) Injectors ?
  • How do I check which injectors are bad?
  • Will cleaning do ?
  • Is replacing injectors DIY?
  • What other parts do I need if I have to replace injectors?

Thank you


Last edited by PhantomLord; 06-29-2009 at 05:36 AM.
Reply With Quote
  #2  
Old 06-29-2009, 05:36 AM
Registered User
 
Join Date: Jan 2008
Posts: 92
bump!
Reply With Quote
  #3  
Old 06-29-2009, 08:20 AM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Fuel pressur bleed-off is a good possibility. The fuel pressure regulator is designed to hold fuel pressure in the rail for at least 24hrs.

If you can attach a fuel pressure gauge and check for bleed off.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
  #4  
Old 06-29-2009, 08:42 AM
Cal Learner's Avatar
Registered User
 
Join Date: Aug 2006
Location: Marysville, CA
Posts: 781
I'm not following you here Doc. If the OP's complaint was of cold hard starts I could understand this better (i.e., pressure leaking away overnight). But since cold hard starts apparently aren't a problem, the notion of fuel pressure loss as the cause puzzles me. Symptoms seem more like leaky injectors flooding the engine after it's been running and then sitting awhile, but still hot. What am I missing?
__________________
1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't
Reply With Quote
  #5  
Old 06-29-2009, 08:50 AM
Registered User
 
Join Date: Jan 2008
Posts: 92
Ok, will check that, would it bleed into the vacuum line?

Edit: Got this http://forum.mercedes-benz-clubs.com/viewtopic.php?t=20579&sid=d0e649178dccaf14e83c272c4fbb73c4, but I still have same doubt as 'Cal Learner'.
Reply With Quote
  #6  
Old 06-29-2009, 08:58 AM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
AND, Or back to the tank.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
  #7  
Old 07-12-2009, 02:00 PM
Registered User
 
Join Date: Sep 2008
Posts: 89
I have the same issue, 90% of the time when cranking cold, it fires up right away... seems that only hot starts are the issue. warm starts are very likely to crank for 5 - 10 secs with holding my foot on the gas and it slowly caughs faster and faster till it finally starts. I did an alldata bulletin search on it and found this... [IMG]file:///C:/Users/James/Desktop/83508998.gif[/IMG]
Attached Thumbnails
Hot Start issue (M111.960)-83508998.jpg   Hot Start issue (M111.960)-83508999.jpg  
Reply With Quote
  #8  
Old 07-12-2009, 05:06 PM
pawoSD's Avatar
Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,424
My 300E does it too.....cold starts are pretty quick (less than 2 seconds of crank time)....but randomly it has a hard time when hot and sitting for more than 15 minutes when re-started. Prompt re-starts hot are no issue (within 10 mins).....sometimes I'll crank 5-6 seconds, no go, and will try again, then it starts right up....some times it will run with a lope at like 200rpm for 3-5 seconds, then come up to speed normally and run fine. Strange indeed. It has never "failed to start" though, it always goes by the second try if necessary....and once started it has no issues at all.
__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 101k - mine - (OC-104,600)
'17 Metris(VITO!) - 24k - wifes (OC-25k)
'09 Sprinter 3500 Winnebago View - 57k (OC - 63k)
'13 ML350 Bluetec - 72k - dad's (OC-75k)
'01 SL500 - 92k(km) - dad's (OC-94,000km)
'16 E400 4matic Sedan - 107k - Brothers (OC-108k)
Reply With Quote
  #9  
Old 07-13-2009, 04:55 AM
Registered User
 
Join Date: Jan 2008
Posts: 92
My E220's symptoms are exactly same as pawoSD's 300E, starts on the second try + sometimes 200rpm issue (mostly one or two cylinders don't fire).

I have postponed it for now, but plan to check fuel pressure first when I start diagnosis.
Reply With Quote
  #10  
Old 05-06-2010, 03:00 PM
Registered User
 
Join Date: May 2010
Posts: 1
Failure to start after Engine Wash

My MB with an M 111.960 E220 Engine wont start after the e4ngine was washed. what could be the problem?

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 04:38 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, 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