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A/C not blowing through front vents

Tiny
WENBU69
  • MEMBER
  • 2009 BMW X5
  • 118,765 MILES
When I turn on my A/C, there is no air coming out of the front vent only the back vents are blowing cold air. What is the problem? Please help
Friday, July 12th, 2019 AT 3:40 PM

8 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Welcome to 2CarPros.

Are you getting air via the defroster or on the floor? If you are, it is most likely related to what is called a mode door actuator. This actuator is responsible for air flow direction.

Take a look through these links and let me know if anything seems to mirror what you are experiencing.

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

https://www.2carpros.com/articles/low-or-no-air-flow-from-vents

I will watch for your reply,

Take care,
Joe
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Friday, July 12th, 2019 AT 9:26 PM
Tiny
WENBU69
  • MEMBER
  • 5 POSTS
Hello and thank you for your help. I also forgot to mention that it was pouring rain yesterday and I turned on the air defogger and it didn't clear the windows either. So, I had to wipe the windows clear and open the windows to let the air in!
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Saturday, July 13th, 2019 AT 7:30 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Welcome back:

Okay, help me understand. The rear could have its own fan system. If you turn the rear off, does the blower motor in the front of the vehicle turn on?
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Saturday, July 13th, 2019 AT 7:20 PM
Tiny
WENBU69
  • MEMBER
  • 5 POSTS
No, it doesn't. I can control the back from the front in the climate control. I turned on the back A/C today to see if it was working and it was. Still, nothing was coming out of the front vents?
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Saturday, July 13th, 2019 AT 9:14 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Welcome back:

Okay, the first thing we need to check is the fuse which provides power to the blower motor. It is fuse 48 in the junction box on the right side of the dash.

Take a look through the attached pictures to help locate it.

Here are a few links you may find helpful:

https://www.2carpros.com/articles/how-a-car-fuse-works

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

_________________________

Let me know what you find.

Take care,
Joe

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Saturday, July 13th, 2019 AT 9:57 PM
Tiny
WENBU69
  • MEMBER
  • 5 POSTS
Thanks so much Joe! I will let you know!
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Sunday, July 14th, 2019 AT 8:12 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Welcome back:

You are very welcome. Let me know if that is the problem.

Take care,
Joe
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Sunday, July 14th, 2019 AT 7:40 PM
Tiny
WENBU69
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  • 5 POSTS
Okay, I will!
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Sunday, July 14th, 2019 AT 8:28 PM

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