C63 normal water temperature
#1
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C63 normal water temperature
Hi everyone?. Is 93-94 degrees Celsius a normal running water temperature for the C63 AMG W204 in a sunny day and without driving the car fast, I noticed that sometimes it turns the fan on even when I am driving the car slow. Thanks!!!
#3
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
I run 92C consistently as well. Might be a slight difference in sensors from car to car and only a couple of degrees higher so probably not an issue. What you see on the dash seems to be a smoothed output so I can see the sensor turning on the fan without seeing a reported increase of temperature on the dash.
#4
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I run 92C consistently as well. Might be a slight difference in sensors from car to car and only a couple of degrees higher so probably not an issue. What you see on the dash seems to be a smoothed output so I can see the sensor turning on the fan without seeing a reported increase of temperature on the dash.
#5
I run 90.5°C (195°F) water temp during normal driving. I wouldn't worry much about your water temp it seems close to average. If anything just make sure your radiator cooling fins aren't clogged with debris if you have a lot of miles on the car.
Last edited by Dr.Speedfellow; 08-16-2021 at 10:36 PM.
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#8
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12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG sold)
For info mine also runs at 92°-93°c in all conditions.
#9
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C204 C63 (P31)
I think the level you are quoting is a bit high, except if you live in a desert region during a heat wave. I would check the expansion cap that it seals and pressurizes correctly, water level, thermostat opening completely.
For info mine also runs at 92°-93°c in all conditions.
For info mine also runs at 92°-93°c in all conditions.
I have been keeping an eye on it, since midway is only 80C
That's a little concerning, it's been twice to MB for servicing and they didn't point out. I'll check cap and coolant level.
#10
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The water temp on the instrument cluster is just a calculated value. It's not the actual CTS value which will be in the 102-110°C range that you can read from OBDII.
If you sift through the BS there's some decent info in this thread --> https://mbworld.org/forums/c63-amg-w...lackboost.html
If you sift through the BS there's some decent info in this thread --> https://mbworld.org/forums/c63-amg-w...lackboost.html
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#11
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C204 C63 (P31)
My car's oil and water temps are just fine. I was mistakenly thinking of oil temp, whereas this thread was referring to water temp.
Normal temps:
Oil: 106-107C
Water: 92-94C
Mine runs at 106 and 92 mostly. Temp here these days is ~20C and I don't drive hard (only in very brief spurts)
Hope this clears any confusions others (like me!) might be facing.
#12
I know this is an old thread but I was just today watching a video from Tasos Moschatos who was using a decade box feeding different resistance values to the Coolant Temperature input to simulate rising coolant temperatures and comparing the data being read from the OBD2 to that of the instrument cluster. The values differed significantly. I thought this was really strange that the ECU would not accurately provide the actual coolant temperature. The oil temperature is a 1 to 1 match meaning that whatever the OBD2 showed matched the cluster.
For example, when the OBD2 coolant temp showed a value of 114°C the cluster value was 95°C.
When the OBD2 coolant temp showed a value of 117.8°C the cluster value jumped to 105°C.
When the OBD2 coolant temp showed a value of 120.8°C the cluster value jumped to 120°C
One has to ask why would there be such a disparity and then at the very high end all of a sudden it was accurate?
Video link (if you are interested)
For example, when the OBD2 coolant temp showed a value of 114°C the cluster value was 95°C.
When the OBD2 coolant temp showed a value of 117.8°C the cluster value jumped to 105°C.
When the OBD2 coolant temp showed a value of 120.8°C the cluster value jumped to 120°C
One has to ask why would there be such a disparity and then at the very high end all of a sudden it was accurate?
Video link (if you are interested)
Last edited by Chris1953; 07-13-2024 at 09:19 AM.
#13
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If you saw 104°C on the dash you'd think the car is overheating when it's actually operating at an efficient temp. So instead it shows 92°C.
#14
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Water temp
[ mine runs normal like everyone else’s except when I’m drag racing, creeps up to 100
QUOTE=Cwagon;8397219]Mine like most runs 92-93C[/QUOTE]
QUOTE=Cwagon;8397219]Mine like most runs 92-93C[/QUOTE]