No air is blowing from vents (hear a noise in the rear of the car)

Tiny
SHAWNTIAC
  • MEMBER
  • 2009 MERCEDES BENZ ML350
  • 3.5L
  • 4WD
  • AUTOMATIC
  • 76,232 MILES
The heat has been working fine. The car was washed yesterday morning and during the afternoon the heat was working. I attempted to drive vehicle later yesterday evening and discovered the heat is not blowing any air out at all. Due to the cold temperatures is it possible something be frozen.
Monday, January 6th, 2014 AT 5:02 AM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Can you hear the blower motor running?
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Monday, January 6th, 2014 AT 6:45 AM
Tiny
SHAWNTIAC
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  • 4 POSTS
Jacobandnikolas, The heat is turned on a hear a noise from the rear of the vehicle. I am assuming the blower is trying to run. I never heard that noise. No air is blowing out not even the AC.
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Monday, January 6th, 2014 AT 7:22 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Can you describe the noise?
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Monday, January 6th, 2014 AT 7:36 AM
Tiny
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It sounds quiet humming sound.
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Monday, January 6th, 2014 AT 7:42 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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I have to be honest, to the best of my knowledge, the blower motor is under the dash and not the rear. The sound you described can be many things. It could be a blower motor that is stuck and not spinning or it could even be the fuel pump you are hearing if it is in the rear.
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Monday, January 6th, 2014 AT 7:52 AM
Tiny
SHAWNTIAC
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Okay, thank you!
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Monday, January 6th, 2014 AT 8:01 AM

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