Normal Temperature Range ("C) Reading
Thread Starter
Senior Member
Joined: Jun 2010
Posts: 370
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From: Los Angeles, CA
2000 C230 Kompressor Sport
Normal Temperature Range ("C) Reading
I just want to know if my C230's temperature is within the normal range. I am located in Los Angeles and it registers 95-100 "C (the needle is almost 3/4 from C to H). I am comparing it to my previous W124 that I sold 2 years ago, the W124 registered only 85-90 "C (needle is slightly above 1/2 from C to H). Is this normal? 
What temperature does your W202 have normally after driving for a period of time?
Pardon the double quote (") sign before the C, I don't know how to type the degrees symbol.
Any info is appreciated. Thanks!
What temperature does your W202 have normally after driving for a period of time?Pardon the double quote (") sign before the C, I don't know how to type the degrees symbol.
Any info is appreciated. Thanks!
Last edited by Jovsky; Aug 20, 2010 at 10:59 AM.
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From: philippines
2020 GLC200 (X253) 1995 mb W202 C220, 2008 Mitsubishi Lancer Evolution, 2014 Ford Mustang 5.0
it will be a lot more helpful if you can give an illustration of your temp gauge.
mine's position normally settles slightly on top of the 2nd to the last line upwards and goes up slightly when stuck in traffic in our tropical sun.
cheers!
mine's position normally settles slightly on top of the 2nd to the last line upwards and goes up slightly when stuck in traffic in our tropical sun.
cheers!
Thread Starter
Senior Member
Joined: Jun 2010
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From: Los Angeles, CA
2000 C230 Kompressor Sport
Thread Starter
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Joined: Jun 2010
Posts: 370
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From: Los Angeles, CA
2000 C230 Kompressor Sport
To Maksi and Kulitko1: Here's the temperature pic of my C230k on a typical hot day (needle is at 90"C). The needle goes up a little to 95-98 "C when I'm on a bumper-to-bumper traffic. Is this normal?
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
My C43 shows the same level after a hard drive or in bumber to bumber traffic. It even gets a bit higher that the photo and closer to the upper mark. Would that be the 100°c mark?
Thread Starter
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From: Los Angeles, CA
2000 C230 Kompressor Sport
Thanks for your input mate!!!
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
My C240 (V6) rarely gets to that level, so I was a bit afraid the C43 was heating a bit. It did spew out water at the overflow pressure pipe in the beginning I had it, but that was because the pressure cap was just old. Changed that and now the engine has the right water pressure and no more water comes out
Thread Starter
Senior Member
Joined: Jun 2010
Posts: 370
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From: Los Angeles, CA
2000 C230 Kompressor Sport
My C240 (V6) rarely gets to that level, so I was a bit afraid the C43 was heating a bit. It did spew out water at the overflow pressure pipe in the beginning I had it, but that was because the pressure cap was just old. Changed that and now the engine has the right water pressure and no more water comes out
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From: philippines
2020 GLC200 (X253) 1995 mb W202 C220, 2008 Mitsubishi Lancer Evolution, 2014 Ford Mustang 5.0
the read out that your gauge is giving is pretty normal. you should see mine when i'm stuck in Manila's famous traffic.
anyway, you just keep an eye on the needle for any funny stuff that might act up.
Thread Starter
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From: Los Angeles, CA
2000 C230 Kompressor Sport
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,891
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
[quote=maksi;
the read out that your gauge is giving is pretty normal. you should see mine when i'm stuck in Manila's famous traffic.
anyway, you just keep an eye on the needle for any funny stuff that might act up.[/quote]
Same here, I feel better even if I will have the cooling system checked out next time my car is in for a service (some time this fall) especially anti-freeze concentration before the cold months of winter.
the read out that your gauge is giving is pretty normal. you should see mine when i'm stuck in Manila's famous traffic.
anyway, you just keep an eye on the needle for any funny stuff that might act up.[/quote]
Same here
, I feel better even if I will have the cooling system checked out next time my car is in for a service (some time this fall) especially anti-freeze concentration before the cold months of winter.
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Joined: Aug 2010
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From: Hellas (Athens)
w202
In my C180 I have similar readings in Hellas, during the summer. So I think there is no need to worry.
Additionally please note that the cooling system is pressurised (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
I think this will help.
Additionally please note that the cooling system is pressurised (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
I think this will help.
Last edited by hermes; Aug 31, 2010 at 08:29 AM.
Thread Starter
Senior Member
Joined: Jun 2010
Posts: 370
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From: Los Angeles, CA
2000 C230 Kompressor Sport
In my C180 I have similar readings in Hellas, during the summer. So I think there is no need to worry.
Additionally please note that the cooling system is pressurised (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
I think this will help.
Additionally please note that the cooling system is pressurised (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
I think this will help.
Now I have peace of mind that my cooling system is operating normal.Thanks ALL for the help guys!!!
Newbie
Joined: Jul 2010
Posts: 4
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1995 C280
Hey anyone have the ohms range for this temp sensor to the dash temp gage? (not the outside temp from bumper sensor). I looked on the web and found this:
20 Celsius 2200-2800 ohms
80 Celsius 290-370 ohms.
My temp gage in the dash is always showing 20 Celsius higher, so it shows in the red during normal driving, kinda scary at first. I've replaced the temp sensor on the water pump (one-wire sensor & not the other temp sensor), have been driving with my hand held scanner viewing stored data (never goes above 95 Celsius on less than 90 F day temps) & to be more sure I use my temp gun after driving: Engine block temp is normal & no paint blistering, water pump casing temp is also normal & matches within a few degrees from the temp reading on my handheld scanner (which uses the two-wire temp sensor data). Radiator is full & clean & no leaks, themo stat is good, temp gage needle moves freely. Next step is taking out the cluster and doing an ohms test on the gage itself and wires.
1995 C280
20 Celsius 2200-2800 ohms
80 Celsius 290-370 ohms.
My temp gage in the dash is always showing 20 Celsius higher, so it shows in the red during normal driving, kinda scary at first. I've replaced the temp sensor on the water pump (one-wire sensor & not the other temp sensor), have been driving with my hand held scanner viewing stored data (never goes above 95 Celsius on less than 90 F day temps) & to be more sure I use my temp gun after driving: Engine block temp is normal & no paint blistering, water pump casing temp is also normal & matches within a few degrees from the temp reading on my handheld scanner (which uses the two-wire temp sensor data). Radiator is full & clean & no leaks, themo stat is good, temp gage needle moves freely. Next step is taking out the cluster and doing an ohms test on the gage itself and wires.
1995 C280
