Usage patterns
マフラーを巻くto wrap a scarf around one's neck
It was cold, so I wrapped a thick scarf around my neck.
マフラーが壊れるfor a car's muffler to break/fail
The car's muffler broke and it's making a loud noise.
マフラーを外すto take off a scarf
When I entered the room, I took off my scarf.