Jeburnett

I've seen this on different Audi models (maybe all?) but it's not documented in the manuals I've read and I've never seen it go on. Does anyone know what it's for?


Thanks,
Jonathan

HGSB

Jeburnett

I thought that too and maybe that's the case. Perhaps that is how it knows when to turn on the internal light trims?

HGSB

rccoleman

It's the temperature sensor. There are several threads here about it.

sandwi54

That's the temperature sensor used to detect the temperature and control AC output.

gsobol

Resurrecting old thread I see .... https://www.audiworld.com/forums/q7-...ntrol-2946448/

Jeburnett

Thank you for that link. My initial search didn't flush it out!

So I can accept this explanation but another question then comes to mind; how does a car with the ability to manage 4 different temperature zones do so with only 1 sensor (facing the driver)? :-)

Thanks,
Jonathan

gsobol

Good question, I tried to fool it by putting my finger over it for a few minutes. Nothing changed in terms of system operation, the fan didn't blow any stronger, nor did the temperature go any cooler. I guess there are multiple sensors that are being employed here to determine what actually happens.

RJC 1