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2007 Audi Q7 Heater Blower motor not working

Tiny
WESTERN803
  • MEMBER
  • 2007 AUDI Q7
  • 68,000 MILES
I have just returned from 3 weeks away and 2007 (57) plate Audi Q7 fan blower is not working. Can hear slight tapping noise behind dash although when I lift bonnet you cannot hear anything. Is it that battery may not be fully charged and Power Management Unit is not providing enough electric to power heater / air con blower?

Heater working fine, left standing for two weeks and found no blowers working when I started engine up Any ideas?

Appreciate any help.
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Friday, January 6th, 2012 AT 8:46 PM

2 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,526 POSTS
Hey WESTERN803,

It sounds like it can be one of two things, either the blower fan has gone out or the blower fan control module is bad here is a wring diagram and a test guide to help you get the problem fixed.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

and

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

Run some tests and get back to us so we can continue helping you.

Best, Ken

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Thursday, February 2nd, 2017 AT 3:27 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,526 POSTS
Hey, Did you ever get the problem fixed?

Best, Ken
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Thursday, February 2nd, 2017 AT 3:28 AM

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