DIY: HVAC flap motor potentiometer cleaning
#21
Re: DIY: HVAC flap motor potentiometer cleaning
Here's another tip for running the flap calibration routine. If you press the ECON or A/C button at the same time as the button which directs the air straight at you, this will initiate a calibration of the FLAPS. The digital temperature display will show all segments, and the computer will do a 2 minute calibration (you'll here the flaps moving).
It worked for my EOS 2007.
See the Youtube video at:
It worked for my EOS 2007.
See the Youtube video at:
#22
Re: DIY: HVAC flap motor potentiometer cleaning
The sensor is a 5k-ohm potentiometer made by Piher Sensing Systems. The part description is HVAC 3. Cleaning potentiometers is always a temporary fix, ideally it would be great to be able to buy a new sensor and drop it in instead. I looked online, and it seems it's a custom part, so no one seems to sell it.... but, maybe some one could buy a minimum order and sell them to Audi / VW folk like us on EBAY?
Just a thought
Piher:
HVAC 3
Just a thought
Piher:
HVAC 3
here is link to new potenciometer from ebay
https://www.ebay.com/itm/23275280617...84.m1558.l2649
or find words "VW Skoda Audi Seat A/C clima positioning flap motor actuator new potentiometer"
#24
Re: DIY: HVAC flap motor potentiometer cleaning
Thank you for writing this tutorial, i managed to save quite a lot of money.
However, i used a special potentiometer cleaner spray and i advice everyone to use it, it cleans the dirt and also has a special lubricant in order for the potentiometer to slide correctly.
Cheers!
However, i used a special potentiometer cleaner spray and i advice everyone to use it, it cleans the dirt and also has a special lubricant in order for the potentiometer to slide correctly.
Cheers!
#25
Re: DIY: HVAC flap motor potentiometer cleaning
I think this might be the problem I have. My issue is that my AC is now shot. Could this problem lead to that? I ask because my mechanic is hesitant to change all the main components of the AC (compressor etc) when it’s still throwing a code that the environment controls are off (something they are insisting u go to the dealership to confirm which seems like overkill). Because I am not a mechanic and I will not be doing the work myself, I can not confirm the exact codes it is giving them. However, I wanted to determine whether fixing the larger components is even worth it when this problem would still exist. I suppose I could have them go ahead and do what you suggested to see if that clears the code. What are your thoughts? Thanks in advance for your help!
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Heebejeebe
2nd gen. A3 - (Typ 8P/8PA, 2003–present)
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10-20-2014 12:59 PM
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