Cayenne Turbo - Rear AC / Heater Fans Not Working
05-14-2018, 05:01 PM
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Cayenne Turbo - Rear AC / Heater Fans Not Working
Hello,
New to the Porsche family and my 2011 Cayenne Turbo's rear ac/heater fans are not working. Front fans are working fine (AC and Heat) but nothing is blowing through the back. Any suggestions? I've read it could be blower resister or fuse?
Thanks!
EP
New to the Porsche family and my 2011 Cayenne Turbo's rear ac/heater fans are not working. Front fans are working fine (AC and Heat) but nothing is blowing through the back. Any suggestions? I've read it could be blower resister or fuse?
Thanks!
EP
05-14-2018, 08:45 PM
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Weclome to the forum EP!
It could be a fuse - but fuses rarely just fail on their own. There is usually a reason. Is the turbo new to you? I doubt if there is a "blower resistor" - much more likely a pulse-width modulated solid-state controller is used to control the fan speed. I'd have to dig a bit in the manuals to figure out where it is. You might want to spend a bit of time checking the fuses. There are multiple fuseboxes in the Cayenne, including ones that Porsche doesn't show in the owners manual... but first ones to check are the ones in the dash ends.
It could be a fuse - but fuses rarely just fail on their own. There is usually a reason. Is the turbo new to you? I doubt if there is a "blower resistor" - much more likely a pulse-width modulated solid-state controller is used to control the fan speed. I'd have to dig a bit in the manuals to figure out where it is. You might want to spend a bit of time checking the fuses. There are multiple fuseboxes in the Cayenne, including ones that Porsche doesn't show in the owners manual... but first ones to check are the ones in the dash ends.
05-15-2018, 02:17 AM
#3
Do you have 4 zone climate control?
if so it’s probably the blower in the back cargo area. The resistor is part of the blower. They’re known to go out and you have to change the whole blower. Part is about 4-500$.
if so it’s probably the blower in the back cargo area. The resistor is part of the blower. They’re known to go out and you have to change the whole blower. Part is about 4-500$.
