AC Blower Whine
08-10-2022, 06:47 PM
#1
Junior Member
Thread Starter
AC Blower Whine
Started getting this whine when running my AC. The whine is constant - doesn't change with acceleration . Becomes louder/quieter when increasing or lowering the speed of the fan. Any idea if I need a new blower motor or if there is just something stuck in there? I took the cabin filter off and couldn't see anything obstructing the fan.
08-11-2022, 03:11 PM
#2
MBWorld Fanatic!
Join Date: Apr 2019
Location: Silicon Valley
Posts: 5,430
Received 3,360 Likes
on
2,236 Posts
MY'14 W212 M276 3.5NA @55kMi
carefully engineered by Bosch 🤪
Started getting this whine when running my AC. The whine is constant - doesn't change with acceleration . Becomes louder/quieter when increasing or lowering the speed of the fan. Any idea if I need a new blower motor or if there is just something stuck in there? I took the cabin filter off and couldn't see anything obstructing the fan.
Nothing to loose...
While enjoying yourself under there... replace/remove your cabin filter. The blower ballast needs air flow to cool itself...
