Hello! I have a Linea MJD with 44K ODO, 2009 Make. Recently it started a problem. I heard Heavy Kadd kadd sound / noise under engine compartment. Panicky I stopped the car, imagining its a problem with starter motor Pinion issue. Later FASS technician paid a visit and his observation is that sound is coming near alternator. I drove the car to FASS next day. But by that time, the noise was completely gone. As suspected, alternator was opened & I carried it to a local alternator repair center and they said alternator is ok and there is absolutely no problem. All assembly done I took the vehicle. The same problem surfaced out again after 30 days. Noise is in the same area. Observation is - If I switch on Head lamp, Noise is apparent else very minute. If I ON blower with Full capacity, Noise is audible. This is striking me to think on alternator bearing as these 2 thing increases load on alternator. But again, could it also be a sign of timing chain problem? Need your help!! I am clueless.