Question on engine temp
MBWorld Fanatic!
Joined: Jun 2015
Posts: 1,523
Likes: 85
From: New Jersey
2010 E550 P2 w/AMG Sport Package + Pano, 2015 Nissan Pathfinder
Mines is always right over the 80 as well once it's warmed up. I think this is normal behavior. Was yours lower then 80 at any point when warmed up?
Senior Member
Joined: Nov 2016
Posts: 268
Likes: 35
From: Western Massachusetts
2019 S450 Silver w/ black interior
Another "same here" just slightly above 80
Funny thing is I never know the temp gauge was in Celsius until I read this post. Sitting in my car now I clearly see the C°
Funny thing is I never know the temp gauge was in Celsius until I read this post. Sitting in my car now I clearly see the C°
Banned
Joined: Oct 2005
Posts: 4,957
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High 80's to 90 centigrade is where mine is parked all of the time. Yours is completely normal. If it should drop to mid 70's and you get a CEL, then your thermostat needs replacing more than likely. It defaults to full open.
MBWorld Fanatic!
Joined: Jun 2013
Posts: 1,900
Likes: 210
From: Sacramento , CA
2010 e550 p2
Between 80 and 90.... i even recorded a video where i was just cruising to work in the Am , and it went from 90 to 80 and stated there for some time.. n then went up again
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Member
Joined: Apr 2014
Posts: 79
Likes: 6
From: Canada
MB E550 2010
Normal. I had a similar question few weeks back, and i think Belarus answered it. I did further research and learned that MB gauge temperature is showing the actual engine temperature and that is why it is numbered (40,80,120), unlike Japanese cars (Low, High) . So with MB you can see the temperature ranges between the 82-90C.
Junior Member
Joined: Aug 2016
Posts: 57
Likes: 7
Mercedes Benz E250 CGI
Recently, I've had the thermostat replaced as the system reported an error code.
I've also noticed some unusual behaviour in the way the engine was warning up. Sometimes it took 2 minutes to get to operating temperature and sometimes it took about 15 minutes. Pay attention to that.
I've also noticed some unusual behaviour in the way the engine was warning up. Sometimes it took 2 minutes to get to operating temperature and sometimes it took about 15 minutes. Pay attention to that.
MBWorld Fanatic!
Joined: Jan 2009
Posts: 9,225
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
Not knowing what engine you have, what is temperature outside and where is your right foot at the moment - you can't say it is normal or not.
Different engines do have different thermostat set and act differently.
My 1999 E300DT would keep 78C when cruising in 102F weather.
Gasoline engines do have higher temp on average, but that again, is engine specific.
Different engines do have different thermostat set and act differently.
My 1999 E300DT would keep 78C when cruising in 102F weather.
Gasoline engines do have higher temp on average, but that again, is engine specific.
