OBD II Generic Fault Code P0117... Please help..
 

I recently have this particular generic OBDII codes: P0117 Engine Coolant Temp Voltage Too Low..

from what i know, there is a chance that the engine coolant temperature sensor is not working properly.. it may also be the thermostat itself..

Question is.. where is/are the sensors and the thermostat located on the E53s? and how to get to them?

Appreciate any advices..