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#1
9th April 2016, 05:00 PM
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HVAC Fault Codes
Before looking to replace the usual clicking motor, I did a test using the basic settings and then checked the fault codes. Can anyone tell me which motors these are and where I'll find them so that I can replace them?
00729 - Potentiometer in Positioning Motor for Right-Hand Central Vent (G137) 09-00 - Adaptation Limit Surpassed 00731 - Potentiometer in Positioning Motor for Left-Hand Footwell Flap (G139) 09-00 - Adaptation Limit Surpassed 00604 - Potentiometer Positioning Motor for Air Flow Flap (G113) 09-00 - Adaptation Limit Surpassed
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#2
15th April 2016, 03:28 AM
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I did try
I've just seen your post and thought that I'd be able to help. I have a copy of VirtualBox running Windows XP and the ELSAWIN service manual on my home server.
Unfortunately, I am unable to connect due to a PEW (Planned Engineering Works) but will check again when service is restored at 06:00
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#3
15th April 2016, 07:58 AM
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That would be a great help thanks.
 I've downloaded a service manual from here for the air conditioning but it's not obvious which location the motors are in.
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Cars... '93 Audi Coupe 2.0 Alpine White (sold) '99 Audi S4 Merlin Purple - K04 upgrade to 412hp (sold) '00 Audi S8 Agate Grey (Sold )'11 Audi Q7 4.2tdi Unknown Red (Classic Red Pearl Effect - thanks MJ)
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#4
15th April 2016, 08:52 AM
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If you remove the glovebox, and the transmission tunnel covers, they are all pretty tightly nested around the hvac unit.
Sometimes, you can feel them clicking if you hold it when its doing output tests. Once you think you're close, unplug that one and do the test again - should be silence.... Also see here to get you started: http://forum.a8parts.co.uk/showthread.php?t=1624
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#5
15th April 2016, 09:06 AM
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G113 is under the bonnet, on the end of the air box under the scuttle drain cover
Bought one last week from TPS as mine is showing the same fault. Just waiting for a replacement plastic drive gear for it as its not incl with a new motor but is only a couple of quid but on back order. Can't see me getting the old one off the motor undamaged! Be warned it ain't cheap, but I couldn't see the point in replacing with a used one from a car that's most likely older and higher miles than mine. Unfortunately the new ones aren't production date marked on the unit, only the box, so difficult to tell
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#6
15th April 2016, 09:23 AM
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Thanks for your answers.
It sounds easy enough, just need the time and dry weather to tackle them all. Are they all usually the same motors or are they different ones depending on location?Presumably the worst that will happen if I leave it for a while will be that I keep hearing the clicking noise and air won't always go where is meant to?! If new ones aren't cheap from TPS then I'm sure the dealer will want more!
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Cars... '93 Audi Coupe 2.0 Alpine White (sold) '99 Audi S4 Merlin Purple - K04 upgrade to 412hp (sold) '00 Audi S8 Agate Grey (Sold )'11 Audi Q7 4.2tdi Unknown Red (Classic Red Pearl Effect - thanks MJ)
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Hybrid Mode
