BMW Repair: 2002 BMW 325i coolant temp sensor, coolant temp, coolant temperature

Question
I downloaded a P0128 OBD code, pertaining to erroneous coolant temperature to the engine computer. I understand there are two sensors. Where is the engine computer coolant sensor located?
Thanks in advance!
Pete

Answer
The water outlet housing,by the thermostat.Just because you have a code for the sensor is it really the sensor?You sometimes get codes and the first thing people do is to replace that component when in fact it is something different.Make sure you check all the possibilites before replacing parts