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vent flaps eratic in opening
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da
Novice
Jun 29, 2013, 6:43 AM
Post #1 of 11
(2712 views)
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vent flaps eratic in opening
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2000 323i BMW with erratic vent flap operation have had this problem off and on for last couple of years. blower motor woks well but air will not come from any vents at times now there is some air coming from passenger side but none from drivers side, defrost or floor vents. may work well for several months and then stop again. have heard in dash what has sounded like a flap closing with some force i have a blower resistor switch to install but just as I received it everything went back to working again pulled the glove box out in trying to locate but could not could find no blown fuses but not sure about relays or their location as I said the blower operates but the air flow is erratic what could you suggest
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 29, 2013, 7:00 AM
Post #2 of 11
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Re: vent flaps eratic in opening
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Guesses for now: Evap could be icing as noticed by low volume of air flow, no draining of condensate and longer use of a/c and self correct if A/C is shut down or car parked and makes a larger than normal puddle.
Another wild thought - does this have a cabin air filter? If so it might be trashed leaving too much residence time at evaporator??
T
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da
Novice
Jun 29, 2013, 7:16 AM
Post #3 of 11
(2695 views)
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Re: vent flaps eratic in opening
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it does have a cabin air filter under the hood which is good and as stated could go back to working at any time and have not noticed any other issues does have automatic climate control which I set on 70 and leave it alone I have blogged to Bavarian auto ask otto.com twice but have not received any reply in almost ,I do not know how long, my son suggested this site and you have responded-thank you. most tell me this particular car seems to have a mind of it's own
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Discretesignals
Ultimate Carjunky
/ Moderator
Jun 29, 2013, 7:35 AM
Post #4 of 11
(2673 views)
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Re: vent flaps eratic in opening
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Does it do this right after you have just started the car after it has been sitting?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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da
Novice
Jun 29, 2013, 12:29 PM
Post #5 of 11
(2637 views)
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Re: vent flaps eratic in opening
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does it all the time now but to think back would only do when first started and then would go back to working properly after it ran for a while
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Discretesignals
Ultimate Carjunky
/ Moderator
Jun 29, 2013, 4:30 PM
Post #6 of 11
(2616 views)
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Re: vent flaps eratic in opening
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It doesn't sound like an evaporate icing up. You stated the blower fan is operational, so it has to be air door positioning problems.
Your probably going to have to take it to a dealer or a shop that has the scan tool that can interface the IHKA system. They can probably do some functional motor tests and recalibrate the system to see if that solves the issue.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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da
Novice
Jun 30, 2013, 4:46 AM
Post #7 of 11
(2599 views)
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Re: vent flaps eratic in opening
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thank you, I thought it would be something like that. just did not want to pull the whole dash out to get to anything. what you said makes more sense than anything else I have read or heard to date. will let you know later if this corrects the problem. thanks for hanging in there for me. does have a lot of miles on it but still runs great uses no oil and will still average about 33 mpg or better on the highway if driven right
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da
Novice
Jun 30, 2013, 5:33 AM
Post #8 of 11
(2594 views)
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Re: vent flaps eratic in opening
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by the way what is the purpose of the IHKA or what exactly is it
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 30, 2013, 5:50 AM
Post #9 of 11
(2589 views)
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Re: vent flaps eratic in opening
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Air Distribution (IHKA Integrated Automatic Heating/Air Conditioning)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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da
Novice
Jun 30, 2013, 7:21 AM
Post #10 of 11
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Re: vent flaps eratic in opening
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thank you you have been very helpful most of all the electronic parts on a BMW do have a tendency to cost a lot more money I do believe that what could happened with sensors and related parts has occurred just do not want to blindly spend more than I have to
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da
Novice
Jul 1, 2013, 4:21 PM
Post #11 of 11
(2533 views)
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Re: vent flaps eratic in opening
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just wanted to follow up with you. the system started back to working again  strange. might not work the next time I use the auto or could work for very long time. hope so. still will follow up on your suggestion and will let you know.
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