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View Full Version : 1999 C43 smells "hot" after running it


gr0ver
05-24-2014, 08:44 PM
Not sure when the coolant was last changed in the car, or if the aux. water pump is working (how do I test that, just see if it's working when I turn the car off?). Just replaced the fan clutch, but now whenever I drive the car the engine just smells....hot. Never did before, the temp gauge is fine, it just smells like somethings hotter than normal under the hood.

Thinking of going with a coolant flush, but anything else I should be concerned about? To check?

Thanks!

Jason
RemoLexi
05-25-2014, 06:44 AM
You sure it's not the smell if burning oil? Valve cover gaskets on those leak all day long
gr0ver
05-25-2014, 07:27 AM
Not oil, already resealed the VC gaskets. Not coolant or electrical, it just smells....hot. It's hard to describe.
SD202
05-25-2014, 08:16 AM
engines get hot when they run....... LOL
gr0ver
05-25-2014, 02:57 PM
Gee, thanks for that astute observation LOL. It smells kind of like hot rubber, but not quite. I'm pretty sure all the hoses are original, though I'm not entirely sure, and I have no clue when or if the coolant was ever changed out.
RemoLexi
05-25-2014, 04:05 PM
I would say if the temp shows normal, all the fluids and fine and nothing leaks I wouldn't stress about it. Depending on your location it's fuqn 108 where I live, shits gonna cook!!
AMG KC
06-13-2014, 12:21 AM
Mine smells exactly like that too, it gets quite warm here in Australia. Car is fine though, no issues.

I used to own two C4 Corvettes, so things like this dont bother me ;)
benz4life
06-26-2014, 01:24 PM
what is the temp on the cluster?
AMG KC
06-26-2014, 10:35 PM
At this time of year, anwhere from 3°c to about 25°c, its winter now. Ive seen it over 45°c in march this year.
benz4life
06-27-2014, 07:46 AM
At this time of year, anwhere from 3°c to about 25°c, its winter now. Ive seen it over 45°c in march this year.
lol , not the outside temp , coolant temp. sensor


This is from another MB forum:
http://i239.photobucket.com/albums/ff258/theblueweb/C230/tempc230.jpg

"note that the cooling system is pressurized (see below), so you can go over 100 degrees Celcius ( to 120 I believe ) without danger for the engine.
From Heynes manual we have the following info for c180, c200, c220, c230, c250:
pressure cap opening pressure :1,4 bar
Thermostat :
Petrol engines:
Opening commences :87 (plus minus 2) degrees Celcius
Fully open:102 degrees Celcius
Non Turbo diesel engines:
Opening commences :85 (plus minus 2) degrees Celcius
Fully open:94 degrees Celcius
Turbo diesel engines:
Opening commences :80 (plus minus 2) degrees Celcius
Fully open:100 degrees Celcius"
AMG KC
06-27-2014, 06:37 PM
Oh ok, wondered why youd ask ambient temps!!

Both my 202s sit about 80-90°c