Q5/SQ5 MKI (8R) Discussion Discussion forum for the First Generation Audi Q5 SUV produced from 2008 to 2017

Heater issue.

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Old 11-07-2013, 05:51 PM
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Originally Posted by 123Audi4me
I noticed this on my 2013 Q5 a couple of times but then realized it happens during the day only. I suspect that there are sensors on both the driver and passenger sides of the interior. I believe that the sensor detects warm sunlight coming through the window and adjusts the airflow accordingly. Warm sun was streaming through the driver's side when I noticed the cooler temperature air from the driver's side vent. At night when everything is equal, I haven't noticed the air temp. difference.
In my car, this happens in the day and the night. I just got done driving my car this evening (in the dark) and it was doing it.
Old 06-23-2014, 03:33 PM
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Update on this.

I was having this problem in the Spring too, when the temperature was around 60 degrees. So I asked the dealer to take a look at it when I had my car in for its 15K service last week. They found a fault code and replaced the A/C pressure sensor.
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