Hi to all can anybody tell me if they have had problems with noise from heater unit this happens when heater motor is in use to defrost the screen but you can hear it on all settings but not so loud like a roaring sound is the some way to clean out particals that get in the airvents under front window or maybe the pollen filter wants changing any info will be much appreciated the motor in question is my santa-fe regards to you all on the forum oldgit.