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Discussion Starter · #1 ·
I have the interior air quality system (IAQS) on my S60.

I usually just leave the button on AUT - which I think the automatic setting which monitors the air quality and recirculates when required - rather than wasting the carbon filter pumping polluted air through the system.

So when I drive behind smoky cars with the AUT light on, I can smell the pollution. When I switch to MAN, there is no smell.

So when I drive behind smoky cars with the AUT light on and I can smell the pollution, is there a problem? Has the AUT sensor failed?
 

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Re: (SML)

Interesting post, Ive actually never paid attention to the smell, But now I think I will

Behind your Heater Control's (the three little slots by the defrost button) Lies a the IAQS Sensor with a fan, if you take out the Heater control (w/e its called) you can clean the fan (attached to the back of the heater control with two screws), I found mine to be completely clogged with nasty stuff.

Just a idea

Chris
 

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Re: Can the IAQS Fail ? (SML)

Quote, originally posted by SML »


So when I drive behind smoky cars with the AUT light on and I can smell the pollution, is there a problem? Has the AUT sensor failed?

Not necessarily, smelling car exhaust or such is not a failure of the IAQS or a problem with a Carbon Cabin Filter. I'll have to look up the exact prerequisites for the IAQS in the Auto position to then switch it to Recirculation thus shutting off Outside Fresh Air. The manual override will obviously do this and that is why you don't smell the outside air. Just so you know for the IAQS to function the air sample has to be pretty dam dirty. Car exhaust will not trigger it. And as for the carbon filters, they are designed for minor smells. And with the small amount of activated carbon in them, they don't last all that long for that purpose. I've replace mine with a brand new one before and on the drive home from work that evening I could smell the rich running Harley in front of me. So don't expect the cabin filter to be like wearing a respirator
 

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Discussion Starter · #8 ·
Re: Can the IAQS Fail ? (Oceans60R)

Quote, originally posted by Oceans60R »
So don't expect the cabin filter to be like wearing a respirator

Damn! I thought it was
Haha
 
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