Would you also recommend doing that PM to the Camshaft Sensor located on top of the motor? My 2007 Coupe actually still has both of these original OEM sensors still in service. I'm convinced the primary failure mode is heat-related, but I also believe this failure mode is influenced by the time dependent exposure the sensor sees the heat. In my case, where I only drive the car sparingly and not as a daily driver, the exposure time these sensors see the heat from the engine is reduced. Anyway, just talking out loud so to speak. I still carry spares in the trunk just in case.