Hi everyone. I am new but not new at the same time. Been using this forum to read posts for over five years now. Today I however, need help big time, so I am posting. I recently noticed the fan was staying on for a long time after engine off. So I checked the codes, plausible faulty ecs. Changed to new ones twice. No avail. Secret menu still shows tttt for temp and my scanner shows -40 all the time. Changed thermostat for OEM bmw. $155 later same issue. showing about 5V going into the sensor...
2013 R56 base...third ect sensor, second thermostat...still shows -40 coolant temp
2013 R56 base...third ect sensor, second thermostat...still shows -40 coolant temp