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 05-31-2006, 08:45 AM
Registered User
 
Join Date: Jul 2005
Posts: 80
possible overheating 1993 400E

Hey All,
I was wondering what the ideal cruising temperature is for a 1993 400E. I only started driving this car in the fall last year, and it stayed relatively mild. The car usually held around 80-85 degrees per the gauge. Now that it is summer and I am using the air condition I am noticing big fluctuations in the temperature. I don't know what the unlabled tab in between 80 and 120 is(100 I think), but that is the hottest it has gotten. If this is normal, please let me know, but to me it feels like it is getting too hot. When it does get this hot I normally turn on the heat to bring down the temperature, and it normally brings it back to around 85-90 degrees. I recently did an oil change and all of my fluids were at good levels. Does anyone know of some other things I could look into as to why the car would be getting so hot? Or is 100 degrees an acceptable temperature for this car to be running at in the summer with the AC on?

Reply With Quote
  #2  
Old 05-31-2006, 12:20 PM
Pete Geither's Avatar
Half Fast Moderator
 
Join Date: Feb 2002
Location: Western Pa.
Posts: 2,417
Ours ran a little bit warmer than that this weekend going down the interstate. It is still quite a bit from the red zone so I am not too worried. I did put a new OEM radiator in last year and the fans all seem to be working correctly. The V-8's all run hotter than the 6's.
__________________
95 SL500 Smoke Silver, Parchment 64K
07 E350 4matic Station Wagon White 34K
02 E320 4Matic Silver/grey 80K
05 F150 Silver 44K
Reply With Quote
  #3  
Old 05-31-2006, 01:49 PM
Registered User
 
Join Date: Jul 2005
Posts: 80
How hot was yours at it's hottest? What is the highest temperature you would still feel comfortable driving? With the AC on, mine basically hangs out right below 100, I would say 99. Without the AC on, I would say it is anywhere from 90-95. That is, if the dash in between 80 and 120, not the one right next to 120, but the dash right in the middle, is indeed 100.
Reply With Quote
  #4  
Old 05-31-2006, 01:56 PM
skiier3_9's Avatar
Registered User
 
Join Date: Jan 2005
Location: Minnesota
Posts: 975
I think thats pretty normal. If you haven't changed coolant in awhile - flush out the old stuff and put in MB recommended see if that changes it.
__________________
Daily Driver: 02 E430 4MATIC
In the family: '03 E500 // '04 ML500 // 64 220SE
Reply With Quote
  #5  
Old 05-31-2006, 03:40 PM
Zeus's Avatar
Moderating, Eh?
 
Join Date: Feb 2000
Location: Canada
Posts: 1,774
My 300E heats up to 100 and sometimes more in stalled traffic when it is really hot out, and the aux fan kicks in.

In the past, my car would generally stay much cooler - even when stopped in traffic. My fans are all fine and I suspect my rad is past its due date.

Since yours is staying that hot while cruising, I would check your fan operation and if your rad is original, it may need replacing.
__________________
Chris
2007 E550 4Matic - 61,000 Km - Iridium Silver, black leather, Sport package, Premium 2 package
2007 GL450 4Matic - 62,000 Km - Obsidian Black Metallic, black leather, all options
1998 E430 - sold
1989 300E - 333,000 Km - sold
1977 280E - sold
1971 250 - retired


"And a frign hat. They gave me a hat at the annual benefits meeting. I said. how does this benefit me. I dont have anything from the company.. So they gave me a hat." - TheDon
Reply With Quote
  #6  
Old 06-01-2006, 02:04 PM
Registered User
 
Join Date: Jul 2005
Posts: 80
Thanks for all of the input. I just checked under the hood while the car was hot and still running, and it turns out the fan isn't working. Neither of the two fans up front by the grill were running, and they obviously should have been. Before I replace the fans, I was wondering if there is anyway to see if it is a bad connection or busted fuse? I posted a few days ago about my headlights and brake lights going out far too frequently, and someone suggested my battery might be outputting too much voltage. If this were true, could this also be a part of the problem of my fans? Also, my dashboard display light is out as well. Has anyone experienced a problem like this or at least heard of it? Thanks.
Reply With Quote
  #7  
Old 06-02-2006, 09:05 AM
Registered User
 
Join Date: Jul 2005
Posts: 80
Bump this. Does anyone know if the cooling fans are connected striaght to the battery or if it runs off engine power? I am trying to determine the status of mine, as they aren't working, please read the above posts, Im trying to find out if all of my problems are inter connected
Reply With Quote
  #8  
Old 06-05-2006, 08:24 AM
Registered User
 
Join Date: Jul 2005
Posts: 80
bump
Reply With Quote
  #9  
Old 06-05-2006, 10:19 AM
Registered User
 
Join Date: Dec 2002
Location: ohio
Posts: 296
LOOK THROUGH THIS WEBSITE, http://pages.prodigy.net/jforgione/MB_S500.html, FOR LOWERING ENGINE TEMPS. BASICALLY, YOU PUT A SMALL RESISTOR BETWEEN THE TERMINALS OF THE WATER TEMP SENSING SWITCH WHICH MAKES THE ELECTRIC FANS COME ON A FEW DEGREES SOONER THAN THEY NORMALLY WOULD. I DID THIS ON MY 400E AND IT WORKED GREAT. ESPECIALLY SAVES THE WIRING LIFE IN THAT HOT ENGINE COMPARTMENT.
Reply With Quote
  #10  
Old 06-05-2006, 01:26 PM
Registered User
 
Join Date: Jul 2005
Posts: 80
I will definitely try this if my fans aren't broken. But I am having a tough time at the moment establishing if the fan is broken or not. Does anyone know if the fan is powered directly from the battery?
Reply With Quote
  #11  
Old 06-05-2006, 01:41 PM
Registered User
 
Join Date: Dec 2005
Posts: 1
Dont know if this will help you, but try running the engine and switching on the A/Con, the fans should kick in with A/Con on
Reply With Quote
  #12  
Old 06-05-2006, 03:11 PM
Registered User
 
Join Date: Jul 2005
Posts: 80
i will, thanks for the suggestion.
Reply With Quote
  #13  
Old 06-13-2006, 03:31 AM
Registered User
 
Join Date: Jun 2005
Posts: 25
400E Cooling

Hi, where do you live? In Austin, the temp has been in the upper 90's and the traffic is....depressing. So my 400e will climb past the 100 mark, and will kick on the mechanical fan via fan clutch gradually around 100(I think) and then the electrical assist fans start up around 107. So this is very repeatable and engineered on the part of MB. I'm not happy about it and may do the resistor thing. Keep good oil and good antifreeze in it. Read more about it on this site, you'll get to be more comfortable with it. Where do you live?
Reply With Quote
  #14  
Old 06-13-2006, 03:32 AM
Registered User
 
Join Date: Jun 2005
Posts: 25
more cooling

probably my biggest concern is the transmission. It hasn't cooked the fluid yet, but can't be good for it, I should search for transmission cooler learning.
Reply With Quote
  #15  
Old 06-13-2006, 04:19 AM
Jim B.'s Avatar
Who's flying this thing ?
 
Join Date: May 2006
Location: N. California./ N. Nevada
Posts: 3,611
It sounds like you are on the right track, but I too, agree with the above poster who asked about when the coolant was last changed, to which I would add, how is the thermostat?

__________________
1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...

1995 E 420, 170k "The Red Plum" (sold)

2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp

1967 Mercury Cougar, 49k

2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive (sold)
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 11:27 PM.


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