Mercedes-Benz ML320 Problem Report
Mercedes-Benz ML320 Heater Blower Motor May Become Noisy
The heater blower motor can become abnormally noisy. Replacement of the blower motor is commonly necessary to correct this concern.
replace fan motor - Visitor
The back seat blower remained on all of the time and was extremely loud. My mechanic had to unhook it in order for it to stop running the battery down. - Visitor
i have no air or heat...just air coming out and it's loud - Visitor
AC fan became noisy - Visitor
heater (fan) only works on 1, and the 2,3,4 make a lot of noise and vibrate so hard, but no air - jklien28
Ny blower motor is very noisy - Visitor
The heater blower motor is very loud and now does not blow air through the system. - dmost1204
Fan for Heat/AC starting making louder than normal noise at higher fan speed setting particular...
while traveling down the road it blows cool air most of the time, but stop at a light or just i...
heater in car won't get hot at idle, but does fine at high speeds