2009 Q5 3.2 - HVAC Blower not working
#11
AudiWorld Super User
#12
AudiWorld Super User
#13
Still, that's only $500 vs. the dealer at about $1,100.
#14
Unfortunately, I don't.
I pulled out the glove box yesterday and built a wiring harness that I can place between the controller and the blower motor. Using a multimeter, I should be able to at least tell if the controller is passing the right increasing voltage to the blower motor. If it is, I'm going to assume the controller isn't the problem and only the motor needs to be replaced. If it isn't, I'll probably go ahead and replace both the motor and the controller.
Now I have to wait for the problem to happen again.
I pulled out the glove box yesterday and built a wiring harness that I can place between the controller and the blower motor. Using a multimeter, I should be able to at least tell if the controller is passing the right increasing voltage to the blower motor. If it is, I'm going to assume the controller isn't the problem and only the motor needs to be replaced. If it isn't, I'll probably go ahead and replace both the motor and the controller.
Now I have to wait for the problem to happen again.
#15
AudiWorld Super User
Unfortunately, I don't.
I pulled out the glove box yesterday and built a wiring harness that I can place between the controller and the blower motor. Using a multimeter, I should be able to at least tell if the controller is passing the right increasing voltage to the blower motor. If it is, I'm going to assume the controller isn't the problem and only the motor needs to be replaced. If it isn't, I'll probably go ahead and replace both the motor and the controller.
Now I have to wait for the problem to happen again.
I pulled out the glove box yesterday and built a wiring harness that I can place between the controller and the blower motor. Using a multimeter, I should be able to at least tell if the controller is passing the right increasing voltage to the blower motor. If it is, I'm going to assume the controller isn't the problem and only the motor needs to be replaced. If it isn't, I'll probably go ahead and replace both the motor and the controller.
Now I have to wait for the problem to happen again.
Maybe it's better and easier
#16
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#17
If the blower motor ever stops working again, and the resistor is providing current, I feel pretty confident that replacing the motor is the first step.
If the resistor fails to provide current, then it could be the resistor or something further up.
#18
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Join Date: Nov 2014
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HELP!!!
I have a 2011 Q5 and my AC has stopped blowing air.
The compressor is kicking in, but I don't have any air blowing out of the vents. I have replaced the Blower, and blower resistor and still no air. I have checked fuses on the driver and passenger side fuse banks and all are good. I need any suggestions that I could try without having to pay mechanic a fortune to do something simple.
Any help or suggestions would be very much appreciated!!
The compressor is kicking in, but I don't have any air blowing out of the vents. I have replaced the Blower, and blower resistor and still no air. I have checked fuses on the driver and passenger side fuse banks and all are good. I need any suggestions that I could try without having to pay mechanic a fortune to do something simple.
Any help or suggestions would be very much appreciated!!
#19
AudiWorld Senior Member
JoeBlowAudi
"built a wiring harness that I can place between the controller and the blower motor"
If you monitor power and ground and the fault is an open circuit in the motor you"ll see all the expected voltages from the controller but that won't mean a thing.Best bet is get 12v to the blower motor plug and see if it spins.Just be 1000% clear you're on the appropriate terminals otherwise you're going to make a German engineer laugh and pay a German company good money to fix your testing error.
"built a wiring harness that I can place between the controller and the blower motor"
If you monitor power and ground and the fault is an open circuit in the motor you"ll see all the expected voltages from the controller but that won't mean a thing.Best bet is get 12v to the blower motor plug and see if it spins.Just be 1000% clear you're on the appropriate terminals otherwise you're going to make a German engineer laugh and pay a German company good money to fix your testing error.
Last edited by MurrayA4; 06-01-2017 at 04:44 PM.
#20
Houston climate is crippling my Q5 and me!
I have a 2011 Q5 and my AC has stopped blowing air.
The compressor is kicking in, but I don't have any air blowing out of the vents. I have replaced the Blower, and blower resistor and still no air. I have checked fuses on the driver and passenger side fuse banks and all are good. I need any suggestions that I could try without having to pay mechanic a fortune to do something simple.
Any help or suggestions would be very much appreciated!!
The compressor is kicking in, but I don't have any air blowing out of the vents. I have replaced the Blower, and blower resistor and still no air. I have checked fuses on the driver and passenger side fuse banks and all are good. I need any suggestions that I could try without having to pay mechanic a fortune to do something simple.
Any help or suggestions would be very much appreciated!!
Where is the motor controller located?
I am pretty confident its not the blower motor or resistor. What should I check next??