Diesel Discussions Only diesel topics should be posted here.

Operating temperatures

Thread Tools
 
Search this Thread
 
Old Apr 10, 2008 | 12:44 PM
  #1  
AMGMercedes's Avatar
Thread Starter
|
Super Moderator
Joined: Jan 2006
Posts: 1,557
From: Maryland
Default Operating temperatures

What's considered a safe operating temperature in a 2.2 190D?

The gauge markings start at 40degreesand goes to 120 where there's a redline after the 120 mark. At 90 the gauge pointeris level.

I noticed that the car normally is consistant at 90 degrees, but sometimes will nearly reach 100 degrees. It never goes over though. Should I be concerned?

It's got a new radiator, fan clutch, coolant, engine temp sensor, and thermostat.
 
Old Apr 10, 2008 | 12:56 PM
  #2  
AMGMercedes's Avatar
Thread Starter
|
Super Moderator
Joined: Jan 2006
Posts: 1,557
From: Maryland
Default RE: Operating temperatures

Nevermind, I found info. Apparently the car is running correctly, but I will search for an engine temp sensor that kicks in at 95 degrees just to be safer. Right now I have noticed that the fan clutch does work correctly, as it reaches 100 it spikes downward to regular temps.

I drive one every day as my daily driver. I just went through cooling issues.

If everything is working, the car should run between 85 - 95 deg C on the guage. The fan clutch should engage at 100 deg C and disengage at 98-ish deg C.

It runs through a fuse in position 1 or 10 depending on year, etc. The fuse amperage also depends on the year. My car is burning these up, so I suspect a bad clutch.

I'm also going to look for a temp sensor that switches at a lower temp. I sure wished I could find one that comes on at 95 and goes off at 90 deg C.
 
Old Apr 13, 2008 | 01:07 PM
  #3  
AMGMercedes's Avatar
Thread Starter
|
Super Moderator
Joined: Jan 2006
Posts: 1,557
From: Maryland
Default RE: Operating temperatures

Sounds conerning... imo. What should I look for to keep it cooled? I've only noticed it almost hitting 100 when it's under or at 55mph, but it doesn't seem to be consistant when I'm doing slow city driving or cruising at 55.
 
Old Apr 13, 2008 | 07:22 PM
  #4  
AMGMercedes's Avatar
Thread Starter
|
Super Moderator
Joined: Jan 2006
Posts: 1,557
From: Maryland
Default RE: Operating temperatures

Even with a new radiator I will try that. Today I played with the fan at about 100 degrees and was able to move it freely.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
sleepwalker
General Tech
20
Oct 28, 2014 05:43 AM
tweintraub
Mercedes E Class
12
Apr 13, 2006 08:37 PM
elysium
Mercedes S Class
0
Feb 25, 2006 02:16 AM
Xavier
General Tech
3
Jul 1, 2005 12:50 AM
kijitimania
General Tech
0
Feb 23, 2004 05:11 AM




All times are GMT -5. The time now is 09:54 AM.