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 07-04-2009, 05:54 PM
MattBelliveau's Avatar
Gotta another one...
 
Join Date: Jun 2005
Location: NE Ohio
Posts: 1,685
Where is it? w124

89 300e. Could someone point me in the right direction? I need to know where the following two parts are located: engine temp control sensor (I've been told rear of engine, drivers side, but I can't seem to find it) and idle control sensor. Also, does the OVP simply unplug from its harness, or is it held in by a screw or anything (on the harness end)? Thanks in advance.

__________________
1989 300E 144K
Reply With Quote
  #2  
Old 07-04-2009, 06:02 PM
MattBelliveau's Avatar
Gotta another one...
 
Join Date: Jun 2005
Location: NE Ohio
Posts: 1,685
OK. Found the Temp sensor.
__________________
1989 300E 144K
Reply With Quote
  #3  
Old 07-04-2009, 06:44 PM
Registered User
 
Join Date: Jun 2007
Location: Waterloo Illinois
Posts: 1,336
I have a 1986 300E and the ovp on mine just unplugs.
Reply With Quote
  #4  
Old 07-04-2009, 08:59 PM
Registered User
 
Join Date: Oct 2008
Posts: 557
yeah, the engine coolant temp sensor is located on the intake side at the very back (closest to the fire wall) of the head..can't miss it, it's vertical in positioning,there is nothing behind it save the firewall....the idle control valve is located on the same side of the motor but underneath the air filter assembly and directly in front of and attached to the fuel distrubutor (towards the radiator), it's horizontal in positioning....the idle control has vacumn hoses into it and an electrical connector , the coolant temp sensor only has an electrical connection, typically black and 4 pin...but I would have ask, why? I just went through this last summer on my 1990 300e....I solved the issue but I simply wonder what your symptom(s) is/are for comparison sake, you know, just for confirmation....best of luck regardless
Reply With Quote
  #5  
Old 07-05-2009, 12:59 AM
pawoSD's Avatar
Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,429
He posted his symptoms in another thread, and they do indeed point to a temp sensor/idle control valve issue.

As for removing the idle control valve....I would replace the rubber hoses connected to it as well....which (for at least one of them, the one going to the engine) is a huuuuuuuuge pain. Have fun!
__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 102k - mine - (OC-104,600)
'17 Metris(VITO!) - 26k - wifes (OC-25k)
'09 Sprinter 3500 Winnebago View - 57k (OC - 63k)
'13 ML350 Bluetec - 73k - dad's (OC-75k)
'01 SL500 - 92k(km) - dad's (OC-94,000km)
'16 E400 4matic Sedan - 122k - Brothers (OC-125k)
Reply With Quote
  #6  
Old 07-05-2009, 12:26 PM
MattBelliveau's Avatar
Gotta another one...
 
Join Date: Jun 2005
Location: NE Ohio
Posts: 1,685
Quote:
Originally Posted by cliffmac View Post
yeah, the engine coolant temp sensor is located on the intake side at the very back (closest to the fire wall) of the head..can't miss it, it's vertical in positioning,there is nothing behind it save the firewall....the idle control valve is located on the same side of the motor but underneath the air filter assembly and directly in front of and attached to the fuel distrubutor (towards the radiator), it's horizontal in positioning....the idle control has vacumn hoses into it and an electrical connector , the coolant temp sensor only has an electrical connection, typically black and 4 pin...but I would have ask, why? I just went through this last summer on my 1990 300e....I solved the issue but I simply wonder what your symptom(s) is/are for comparison sake, you know, just for confirmation....best of luck regardless
Check it, Holmes...

http://www.peachparts.com/shopforum/showthread.php?t=255944&highlight=cold+start
__________________
1989 300E 144K
Reply With Quote
  #7  
Old 07-05-2009, 09:00 PM
Registered User
 
Join Date: Oct 2008
Posts: 557
well, I just went out and looked at my 1990 300E to make sure and it doesn't look like your picture. My coolant temp sensor is all alone, nothing behind it nor next to it. The connecting wire and boot are susbstantial to this thing, almost spark plug bootish and wire girth in fact. As I have pulled parts off of 300es' ranging from 1988 to 1992 and they generally fit, exclusively, I would say I don't get it...maybe you have a special model with more options than do I, mine is base, pure dealer stock with no options..maybe you have heated seats or something, but mine has one giant plug to the coolant temp sensor with nothing else even remotely that impressive in the small general engine neighborhood...Holmes
Reply With Quote
  #8  
Old 07-05-2009, 11:04 PM
Registered User
 
Join Date: Jan 2008
Location: Melbourne Australia
Posts: 844
The OP is double posting.
Here is an image of a M103 engine. 2.6L version. Non cat - runs unleaded or leaded. Has variable timing wheel to adjust to octane.


Here is an image of the Water temp sensor from that engine. It is in early versions and was standard in some parts of the world.


Here is the later version water temp sensor. Probably in most US versions.

Reply With Quote
  #9  
Old 07-06-2009, 02:18 AM
ps2cho's Avatar
Registered User
 
Join Date: Jun 2006
Location: Chandler, Arizona
Posts: 3,525
Quote:
Originally Posted by Ivanerrol View Post
The OP is double posting.
Here is an image of a M103 engine. 2.6L version. Non cat - runs unleaded or leaded. Has variable timing wheel to adjust to octane.
interesting. Is that water temp sensor (2nd to rear) for the instrument cluster or for cis?
__________________
2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k
Reply With Quote
  #10  
Old 07-06-2009, 02:57 AM
Registered User
 
Join Date: Jan 2008
Location: Melbourne Australia
Posts: 844
Quote:
Originally Posted by ps2cho View Post
interesting. Is that water temp sensor (2nd to rear) for the instrument cluster or for cis?
Rear is CIS, second from rear is single pole sensor for cluster temp gauge.
Reply With Quote
  #11  
Old 07-06-2009, 09:02 AM
MattBelliveau's Avatar
Gotta another one...
 
Join Date: Jun 2005
Location: NE Ohio
Posts: 1,685
Quote:
Originally Posted by Ivanerrol View Post
The OP is double posting.
Here is an image of a M103 engine. 2.6L version. Non cat - runs unleaded or leaded. Has variable timing wheel to adjust to octane.


Here is an image of the Water temp sensor from that engine. It is in early versions and was standard in some parts of the world.


Here is the later version water temp sensor. Probably in most US versions.

Thank you, Thank you, Thank you! That is exactly what I need. When I pull up the parts for an 89, that green one isn't an option, so I tried an 86 and bingo!

__________________
1989 300E 144K
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 05:17 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, 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