Cooling Mods... bypass coolant sensor?
12-14-2009, 04:10 PM
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C32 AMG
Cooling Mods... bypass coolant sensor?
with the pulley, cams, and ecu my car runs hotter than normal. In an attempt to reduce the water temps and intake air temps i did an intake, intercooler & pump, thermostat, and took that big fan out and made a dual 14" slim fan setup. I utilized all factory plugs so no hacking or anything. but once my temp sensor kicks in to turn the fans on I get a "Coolant! Visit Workshop" malfunction and once the fans cut off it goes away. The stealership, of course, provides no help unless you pay. So im asking is there a way to "trick" or bypass the sensor so that I dont get the message?
I searched already.
I searched already.
12-14-2009, 04:24 PM
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No suggestion on fixing the existing message but would say that the stock fan is more than adequate. I have run the C32 at a road course in 110 degree temps for 30 minutes at wide open throttle and the car has never come close to getting hot. Granted my mods are a 178 pulley and ECU, but the cams and a 185 will not make the engine coolant temp any higher.
Fans on your IC radiator might help to lower the IATs, but not the engine radiator.
Fans on your IC radiator might help to lower the IATs, but not the engine radiator.
12-14-2009, 04:35 PM
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C32 AMG
stock fan flows 2500 cfm's thats good for a 20" fan but one of my 14" fans flow 2000 cfm's. now im at 4000 cfm's. My thought process is that if the engine temp is at say 100 degrees (for sake of numbers) and my running water temp gets is 50 degrees in the rad. (given the temp and amount of air flowing through) it could realistically only drop my engine temp to 75 degrees as is travels through the block because thats where the water temp and engine temp would reach a medium. now if i increase the flow of air traveling through the radiator the water temps could be reduced further than normal. therefore the water temp and engine temp medium would be lower.
12-14-2009, 04:50 PM
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2003 porsche 996 turbo
your issue is with the s/c intercooler. as the system is combined with the engine coolant it runs super hot. separate the i/c coolant and do the -10 degrees fan mod so the fan comes on sooner . also theres a patrick pte 180 tstat that you can use to open sooner and run cooler.
in the summer at 100*F my temps run at 90* C and in the winter it runs between 60 and 75*C at 30* F outside temps
in the summer at 100*F my temps run at 90* C and in the winter it runs between 60 and 75*C at 30* F outside temps
12-14-2009, 05:39 PM
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2003 porsche 996 turbo
you need to separate the coolant system. depending on were you live you run 50/50 mix in engine and as little as 80/20 mix in i/c system
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12-14-2009, 10:32 PM
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C32 '02
your issue is with the s/c intercooler. as the system is combined with the engine coolant it runs super hot. separate the i/c coolant and do the -10 degrees fan mod so the fan comes on sooner . also theres a patrick pte 180 tstat that you can use to open sooner and run cooler.
in the summer at 100*F my temps run at 90* C and in the winter it runs between 60 and 75*C at 30* F outside temps
in the summer at 100*F my temps run at 90* C and in the winter it runs between 60 and 75*C at 30* F outside temps
+1 do the -10 mod. max coolant temp i get is 90C when running hard. otherwise it hangs around 87-89 depending on ur speed.
it say 12degrees but actually the most it will go is 10.
Last edited by ML500K; 12-14-2009 at 10:35 PM.
