well if its the FSR how would i know whice one it is because i believe there are two of them one on the front and one for the back.. but also i heard you hear a noise if it is the fan i dont hear no noise.. another thing i was readingis that little light on the shifter it is always on i notice that ever since i bought the x5 in 2010 it was always on and never went off i always found that weird