2007 335i E92
Today while driving, I noticed that my heater fan was acting up. As I speed up or slow down the heater fan would slow down and not blow as hard, then all of a sudden start up blowing normally again. This would also happen on some slight bumps in the road also. I also noticed that when I turn the fan setting to the 4th block that is the highest the fan will go. If i turn it up higher, the fan does not blow any harder.
Has anyone ran into this problem or have an idea of what is wrong? I have the JB4 USB running through the fire wall, and was wondering would that cord ever get into the way of the heater fan?
Today while driving, I noticed that my heater fan was acting up. As I speed up or slow down the heater fan would slow down and not blow as hard, then all of a sudden start up blowing normally again. This would also happen on some slight bumps in the road also. I also noticed that when I turn the fan setting to the 4th block that is the highest the fan will go. If i turn it up higher, the fan does not blow any harder.
Has anyone ran into this problem or have an idea of what is wrong? I have the JB4 USB running through the fire wall, and was wondering would that cord ever get into the way of the heater fan?