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Anyone know what this does. I could not find it in any manuals.

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Old 11-13-2008, 09:50 AM
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Default Anyone know what this does. I could not find it in any manuals.

It's part of the AC and broken, yet everything works.

<img src="http://pictureposter.audiworld.com/146834/imgp0595.jpg">

<img src="http://pictureposter.audiworld.com/146834/imgp0593.jpg">
Old 11-13-2008, 10:10 AM
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Default Same exact thing happened on my old C4...

but it still worked perfectly as you said.

I'm guessing it's some sort of temp sensor...At work so no access to ETKA.
Old 11-13-2008, 10:12 AM
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It's one of the pressure switches. Surprised the AC compresser still comes on.
Old 11-13-2008, 10:16 AM
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Default Didn't even think to check KATE. Why, I have no idea.

<center><img src="http://pictureposter.audiworld.com/146834/ac.jpg"></center><p>I think it's a low pressure sensor. That would explain why everything works.

Thanks for the hint!
Old 11-13-2008, 11:20 AM
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Default It's the low pressure switch to prevent compressor from starting w/o enough pressure

Must be a normally open switch so the broken wire has no effect under normal conditions.
Old 11-13-2008, 10:58 PM
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Default actually it's high pressure switch F23, controls fan 2nd speed

<ul><li><a href="http://www.isham-research.co.uk/quattro/wiring/TypC4/audi_100_klimaanlage_standheizung_mj1997.pdf">page 11</a></li></ul>
Old 11-14-2008, 08:55 AM
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Interesting...
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