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X5 E53 (1999 - 2006)
The X5 SAV Forum

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  #1  
Old 01-26-2013, 11:54 AM
Kellydream Kellydream is offline
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Cool No heat! Please help a girl with no mechanic experience!!

So my seats will stay heated and warm air comes out of defrost....no coolant leaking, temperature not overheating....but no heat coming out of vents, just cold air! Worked fine yesterday...son drove it last night and now there is a problem...HELP!
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  #2  
Old 01-26-2013, 12:39 PM
boramkiv's Avatar
boramkiv boramkiv is offline
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Mein Auto: Some Bavarian car outside
Check the humidifier setting between the two dashboard vents and ensure they're in the red (not blue).
That's the first simple check.
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  #3  
Old 01-26-2013, 12:55 PM
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boramkiv boramkiv is offline
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Worse case, you need a heater valve based on your symptoms. It looks like this:

http://www.partsgeek.com/mmparts/hea...ve/bmw/x5.html

Don't have to get that one just showing what it would be IF you still have no luck.

Last edited by boramkiv; 01-26-2013 at 12:58 PM.
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  #4  
Old 01-26-2013, 01:44 PM
upallnight upallnight is offline
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See this post on another forum.

http://www.bimmerfest.com/forums/sho...d.php?t=503815
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  #5  
Old 01-26-2013, 03:05 PM
Kellydream Kellydream is offline
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Thank you so much! That was it!!!
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  #6  
Old 01-26-2013, 07:41 PM
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QSilver7 QSilver7 is offline
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Quote:
Originally Posted by Kellydream View Post
Thank you so much! That was it!!!
Help us help each other better... clarify which one was "it". You were given 3 suggestions...the stratified air dial (between the center vent in the dash)...the heater (water) valve...and a link that discussed the FSR (final stage resistor)?
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Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
(SOLD)
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

http://imageshack.com/scaled/grid240/822/e38e532ndsigpic.jpg

Last edited by QSilver7; 01-26-2013 at 07:43 PM.
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  #7  
Old 01-26-2013, 07:58 PM
upallnight upallnight is offline
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Quote:
Originally Posted by QSilver7 View Post
Help us help each other better... clarify which one was "it". You were given 3 suggestions...the stratified air dial (between the center vent in the dash)...the heater (water) valve...and a link that discussed the FSR (final stage resistor)?
Since she fixed it so quickly I would have to say it was the stratified air dial between the center vent.
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  #8  
Old 01-26-2013, 04:06 PM
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drive by72 drive by72 is offline
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A woman on an Internet car forum?!?
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RIP Ben "Jever" Doebele, we wont forget you

Please, call me Chadley

1997 328iS... HR coilovers, Brembo F40 calipers, camber plates, it needs a CUMMINS!!

1990-somethin Chevy K3500... Cummins, cab swap, 5 speed, and lots of motor work. 20 MPG, 40 PSI, 507 ft/lbs torque
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  #9  
Old 01-27-2013, 11:10 AM
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QSilver7 QSilver7 is offline
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(lol)...I wonder if we'll ever find out for sure? But more than likely...you're correct.
__________________
Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
(SOLD)
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

http://imageshack.com/scaled/grid240/822/e38e532ndsigpic.jpg
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  #10  
Old 01-27-2013, 05:56 PM
upallnight upallnight is offline
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Quote:
Originally Posted by qsilver7 View Post
(lol)...i wonder if we'll ever find out for sure? But more than likely...you're correct.
Quote:
Originally Posted by kellydream View Post
yes, it was the humidifier setting between the two vents...of course no one will admit to playing with it...but it is nice and warm now! Thanks again!

i guess you got your answer.
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  #11  
Old 01-27-2013, 05:26 PM
Kellydream Kellydream is offline
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Smile Yes humidifier setting

Yes, it was the humidifier setting between the two vents...of course NO ONE will admit to playing with it...but it is nice and warm now! Thanks again!
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  #12  
Old 01-28-2013, 01:01 AM
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QSilver7 QSilver7 is offline
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Quote:
Originally Posted by Kellydream View Post
Yes, it was the humidifier setting between the two vents...of course NO ONE will admit to playing with it...but it is nice and warm now! Thanks again!
Thanks for the clarification...much appreciated....and you're right, no one will probably "fess up" to moving the dial.

BTW...its not really a "humidifier setting...but a "stratified air"setting...it allows the front passengers to "temper" the air cooler/warmer and has been a BMW HVAC thing for decades. An example of its correct usage is...on a long journey/trip...the driver can turn the dash vents to blow cooler air in their face (to stay alert) while the passengers remain nice and cozy with the regular temp settings. And the rear passengers have the same ability to control their environment (like if they are sitting on the sunny side of the vehicle) and temper the air coming from the back of the rear console without asking the driver to change the IHKA control panel up front.



(the rear "blower" on the left is optional...but the stratification TEMP dial on the right is standard feature)
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Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
(SOLD)
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

http://imageshack.com/scaled/grid240/822/e38e532ndsigpic.jpg
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