R56 coolant temperature sensor
#1
coolant temperature sensor
Hey all,
Last week my car threw some codes, p112b and p173b. Fans ran extra long and high speed. Next morning battery was drained (due to the fans running even long after car was turned off and cold).
Long story short, turned out to be a coolant temperature sensor. So a new one was installed by my Mini/BMW guy (not dealership). Since then, the new sensor has the car running around 195-200 degrees, which is cooler than it used to run.
Is this an issue? I know they are made to run hotter than it is now running. It used to run around 205 degrees
Last week my car threw some codes, p112b and p173b. Fans ran extra long and high speed. Next morning battery was drained (due to the fans running even long after car was turned off and cold).
Long story short, turned out to be a coolant temperature sensor. So a new one was installed by my Mini/BMW guy (not dealership). Since then, the new sensor has the car running around 195-200 degrees, which is cooler than it used to run.
Is this an issue? I know they are made to run hotter than it is now running. It used to run around 205 degrees
#2
Hey all,
Last week my car threw some codes, p112b and p173b. Fans ran extra long and high speed. Next morning battery was drained (due to the fans running even long after car was turned off and cold).
Long story short, turned out to be a coolant temperature sensor. So a new one was installed by my Mini/BMW guy (not dealership). Since then, the new sensor has the car running around 195-200 degrees, which is cooler than it used to run.
Is this an issue? I know they are made to run hotter than it is now running. It used to run around 205 degrees
Last week my car threw some codes, p112b and p173b. Fans ran extra long and high speed. Next morning battery was drained (due to the fans running even long after car was turned off and cold).
Long story short, turned out to be a coolant temperature sensor. So a new one was installed by my Mini/BMW guy (not dealership). Since then, the new sensor has the car running around 195-200 degrees, which is cooler than it used to run.
Is this an issue? I know they are made to run hotter than it is now running. It used to run around 205 degrees
#3
#5
I have a '13 MCS. I also have a Sneed oil cooler, which works like a charm. I really do believe, that it has an effect, if only a few degrees on the temp of the coolant. It's odd, but since adding the cooler, the oil temp gauge, hardly ever registers a temp 175*. Will see how it performs when I road trip through the SW this May.
#6
Wow, I did not know about the Sport mode affecting coolant temp settings in the N18! I've been running mine in Sport mode all the time (about to install the FES Auto Sport module), and have been surprised at how cool it runs, most of the time below 195, and as low as 185. I will try to see what the temps are in regular mode.
Anyone know why sport mode would shift the temp setpoint?
Mileage etc.. aside, would this suggest an advantage in running in Sport mode in terms of engine longevity?
Anyone know why sport mode would shift the temp setpoint?
Mileage etc.. aside, would this suggest an advantage in running in Sport mode in terms of engine longevity?
#7
The topic of this thread is temperature sensor so I will share some ...
We were out motoring this weekend and the check engine light came on. The cooling fan appeared to be running longer than normal but it was a hot day (as we stopped to look at the engine/motor bay). HMMMMmmm..... What could it be? Well first thought was temperature sensor. The coolant overflow bottle level looked OK. As we were out in the back roads we did not have a code reader with us and could only guess what it was ....... but then we found an AUTOZONE within a very short distance. We got a cheap code reader, plugged it in, and it said, "P0599 and P0128."
P0599 Failed Engine Cooling Thermostat
- Engine Cooling Thermostat harness is open or shorted
- Engine Cooling Thermostat circuit poor electrical connection
P0128
This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat.
A code P0128 may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much)
Yep coolant issues. Our 2 year old Mini has had three temperature sensors and three water pumps in the two years time we have been motoring with it. The last time we went to the dealer for brake pads (under the no cost maintenance program) pads that were not replaced because they thought the pad sensor was wrong, we asked them to check the cooling system for leeks. None were found but I noticed traces of coolant on the parts below the overflow bottle.
Well it was time to use the Mini tow service and transport the MCS 45 miles via flat bead to the dealer for a review of the coolant situation.
What will they find?????
We were out motoring this weekend and the check engine light came on. The cooling fan appeared to be running longer than normal but it was a hot day (as we stopped to look at the engine/motor bay). HMMMMmmm..... What could it be? Well first thought was temperature sensor. The coolant overflow bottle level looked OK. As we were out in the back roads we did not have a code reader with us and could only guess what it was ....... but then we found an AUTOZONE within a very short distance. We got a cheap code reader, plugged it in, and it said, "P0599 and P0128."
P0599 Failed Engine Cooling Thermostat
- Engine Cooling Thermostat harness is open or shorted
- Engine Cooling Thermostat circuit poor electrical connection
P0128
This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat.
A code P0128 may mean that one or more of the following has happened: Low engine coolant level Leaking or stuck open thermostat Faulty cooling fan (running too much)
Yep coolant issues. Our 2 year old Mini has had three temperature sensors and three water pumps in the two years time we have been motoring with it. The last time we went to the dealer for brake pads (under the no cost maintenance program) pads that were not replaced because they thought the pad sensor was wrong, we asked them to check the cooling system for leeks. None were found but I noticed traces of coolant on the parts below the overflow bottle.
Well it was time to use the Mini tow service and transport the MCS 45 miles via flat bead to the dealer for a review of the coolant situation.
What will they find?????
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#9
Does this seem correct to you guys? Water Temp.
I'm running the Craven Gauges through the ODBII port. But since owning the car (beginning of this winter) I've (seems) had issues getting the engine up to temp. Especially on those morning when it was below 0. After 4 miles of town driving (distance to work) I'm lucky if I get warm air blowing out of the vents. The temp gauge in town typically gets to about 165 - 170 but that requires a lot more than 4 miles start - stop driving.
It has been in to the Mini dealership and had the thermostat and sensor replaced.
Yesterday with an outside air temp of 32 and on the highway the temp reached approx 180'ish. 12 miles @ 75 (cough cough) MPH
This seems dreadfully low still. Sports button not in use.
Anyone seen this or have thoughts on this?
#10
#11
That's what I thought !!
Thanks very much for the information. This is my first (BMW) Mini so I had no idea what to expect.
I will say this, those summer performance tires don't work too well in the snow !!
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