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E36 /7 Z3 (1996-2002)
E36/7 Z3 roadster and coupe talk with our gurus here.

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  #1  
Old 07-14-2009, 08:43 AM
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Mein Auto: S54 M Coupe x2, M52 Z3
Z3: How to Lube the AC Controls?

Is there a way to lube the AC controls? The Z is giving me much more resistance than the Coupe when I turn the knob to change the flow to the floor vents.

Ron, do you have the official BMW docs on this by chance?

Thanks in advance!
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  #2  
Old 07-14-2009, 08:53 AM
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Ron Stygar Ron Stygar is offline
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Quote:
Originally Posted by Mpire View Post
Is there a way to lube the AC controls? The Z is giving me much more resistance than the Coupe when I turn the knob to change the flow to the floor vents.

Ron, do you have the official BMW docs on this by chance?

Thanks in advance!
It's on the BMW TIS disk group 64.

There is a thread here dealing with the sticking.
A guy explains it.
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  #3  
Old 07-14-2009, 09:09 AM
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I found the following post on the blend door sticking

http://www.bimmerfest.com/forums/sho...ght=stick+knob

But nothing on the footwell/dash vent knob. Same procedure? What keywords are you searching with?
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  #4  
Old 07-14-2009, 09:12 AM
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Ron Stygar Ron Stygar is offline
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Quote:
Originally Posted by Mpire View Post
I found the following post on the blend door sticking

http://www.bimmerfest.com/forums/sho...ght=stick+knob

But nothing on the footwell/dash vent knob. Same procedure? What keywords are you searching with?
Don't remember any lube stuff. Go with the TIS.
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  #5  
Old 07-15-2009, 03:20 PM
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summereskimo summereskimo is offline
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I believe it has something to do with the wires and not the knobs. Just like Ron, I remember reading it somewhere here. I can't find the thread anymore
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  #6  
Old 12-30-2009, 12:41 PM
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So bringing back this thread from the dead...

The cable seems to be sticking at each position, but I don't really see a way to replace it. It is riveted to the AC box.

Following the link above I am adjusting the blend door knob. I have a spare AC panel (all you guys who made fun of me for stockpiling parts feel stupid now!)

Lets hope that it doesn't break again...

Now on to lubing up the control cables...

Anyone know how to do this?
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  #7  
Old 01-04-2010, 12:20 PM
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I ended up drilling and tapping the lever arm for a servo ball joint that was recommended in the other thread.

As best as I can tell, the blend door is sticking inside the AC box. Moving the lever by hand gives me the same resistance right before it lets go.

Not sure I have a better solution, but the ball joint works well and the AC is working again.

I have a pack of the joints, I also have the drill and tap kit I got for this project. I also picked up a drill press to make sure I do it right. And a set of mini wrenches.

So.... if anyone needs this fix, just let me know and I can probably do it for you in a few minutes.
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