Hi All,
Vehicle: 2007 Mini Cooper S R56 70k miles
I am having some cooling/radiator fan issues. The fan will seemingly come on when it is not required to be, it seems to pretty much be constantly on. For instance, with a completely cold engine (not started for days), I could open the driver’s door, turn the ignition on and then off again, close the door and the fan will start up.
Also, when driving I could start the engine, again from cold, and the fan will immediately come on and stay on. Therefore, the engine never gets up to temperature.
This evening I removed the fan relay while the engine was running, which allowed the coolant temp to get up to 95degC at which point I put the relay back in and of course the fan came on. Consequently, coolant temp then dropped back down to around 50degC within 6-8mins. I then took her out for a 20 min drive, drove her pretty hard and I did not manage to get coolant temp above 45degC, again the fan was on the whole time.
Once, turning the engine off regardless of how hot it is, the fan will run for an additional 10-15mins. I know it is normal for a fan to run after the engine is off for further cool. Whereas, when coolant temp is only 45degC extra fan running after engine off isn’t normal. Sometimes after 5mins I even pull the relay out to ensure it doesn’t drain the battery.
The first port of call is the coolant temperature sensor, which I changed today for a brand-new HASS one. This unfortunately didn’t solve the issue. The battery was also replaced about 2 weeks ago.
Does anyone have an idea what could be causing the fan to essentially be constantly running? Personally, I feel like there must be something, another sensor/switch, that is telling it to be on.
Thanks in advance,
Jamie
Vehicle: 2007 Mini Cooper S R56 70k miles
I am having some cooling/radiator fan issues. The fan will seemingly come on when it is not required to be, it seems to pretty much be constantly on. For instance, with a completely cold engine (not started for days), I could open the driver’s door, turn the ignition on and then off again, close the door and the fan will start up.
Also, when driving I could start the engine, again from cold, and the fan will immediately come on and stay on. Therefore, the engine never gets up to temperature.
This evening I removed the fan relay while the engine was running, which allowed the coolant temp to get up to 95degC at which point I put the relay back in and of course the fan came on. Consequently, coolant temp then dropped back down to around 50degC within 6-8mins. I then took her out for a 20 min drive, drove her pretty hard and I did not manage to get coolant temp above 45degC, again the fan was on the whole time.
Once, turning the engine off regardless of how hot it is, the fan will run for an additional 10-15mins. I know it is normal for a fan to run after the engine is off for further cool. Whereas, when coolant temp is only 45degC extra fan running after engine off isn’t normal. Sometimes after 5mins I even pull the relay out to ensure it doesn’t drain the battery.
The first port of call is the coolant temperature sensor, which I changed today for a brand-new HASS one. This unfortunately didn’t solve the issue. The battery was also replaced about 2 weeks ago.
Does anyone have an idea what could be causing the fan to essentially be constantly running? Personally, I feel like there must be something, another sensor/switch, that is telling it to be on.
Thanks in advance,
Jamie