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#11
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When I activate them to 50% via the BimmerGeeks ProTool that activate then shut down and a noticeable change happens in the vents and air flow.. What exactly does the the Dynamic-pressure-flap motor control? The other day I check the cabin filter to confirm it was clean and clear and could see the motor and its not hard to get to.... I am also thinking that I might have a Blower motor resistor going... No codes for it though Ill update once parts replaced |
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#12
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Quote:
The flap that stepper motor controls just changes whether or not you get inside or outside air. Once you remove that stepper motor, you can actually physically move the flap with your fingers. Just FYI, the white section of the stepper motor only fits one way, so you may have to hold it up against where it attaches while it cycles around until it lines up. You don't have to push hard or anything, just hold it up where it would screw in until it moves to the correct position and slips on. you can see from the image there's a flat section that has to line up properly. Very easy to do. Also, in case anybody is ever curious, I've attached a quick video showing the center vent blend doors working.
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2007 X5 4.8i - 12/06 Build - Silver/Black - 3rd Row |
#13
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Thanks for the reply. When I try and engage the Dynamic flap I hear the motor moving/electric motor sound (if that makes sense), and then it repeats. No clicking and no change in air flow. When I disengage it the motor sounds just stops
When I engage the other motors I hear an electrical/motor sound then it stops and the air flow changes. When I disengage it the motor runs, stops and air flow goes back to what it was prior Just odd when I engage the fan fully via the control panel in the car I do not get a heavy flow of air but the fan is running hard. If I swap to defrost I get a wind storm as expected....switch back to middle center only and hear the fan blowing hard but feels like the fan it at level 2 when its set to full. Engaging the auto circulation nothing really changes...If I switch to outer air it start to blow hard then slows down? |
#14
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Well, there's an easy way to tell if the stepper motor is doing it's job, or perhaps there's something blocking the flap itself. Simply
You may find a blockage or evidence of water intrusion (bad). If the door doesn't move like in the attached video, there's probably something wrong with that stepper motor. If it does move... You can see mine opening in the attached video. The white part behind the door is the blower motor fan spinning.
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2007 X5 4.8i - 12/06 Build - Silver/Black - 3rd Row |
#15
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Thanks for taking the time and getting the video...Big Help!
So do confirm that is the flap that the dynamic pressure motor controls then? Ill confirm that this weekend Last edited by HellRazor35; 12-16-2021 at 11:10 PM. |
#16
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Quote:
Edit: I'm guessing that honey comb looking section is the flap you can see in the video I posted, but not sure how the dynamic stepper motor interacts with it, if at all now. There's not any clear documentation on what that particular motor actually does.
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2007 X5 4.8i - 12/06 Build - Silver/Black - 3rd Row Last edited by Toothbrush; 12-17-2021 at 12:24 AM. |
#17
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Perfect, I still need to get ISTA working in the laptop. I can get it installed but will not talk to the ECU for some reason. I am guessing that I have a connection setting off some where.
Dont know if you have ever use the BimmerGeeks PROTOOLS on the Android but its pretty good. But ISTA in this situation would be choice. Thanks for the PICs and confirming....Ill keep updating. Its pretty cold here just dumped 5-6inch snow today and suppose to get down in the low low 20's tonight.. just make working on this a lot less fun FYI Pretty sure that flap is working because when I activate it in ProTool the air flow changes...I'll try capturing some video when I do this |
#18
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I tested out BimmerGeeks app when they first released it and it looked promising but haven't used it since then. I have Carly (from before they were a subscription thankfully), INPA, ISTA and OBD Fusion for quick and dirty live data while driving.
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2007 X5 4.8i - 12/06 Build - Silver/Black - 3rd Row |
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