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

A/C problem

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Old Sep 3, 2024 | 03:48 PM
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Default A/C problem

Hi All, I have a 2013 Q5, the A/C works intermittently. It seems to be linked to the ambient temperature - but no always.
When it is not working I have nothing, no fan, nothing.
I took it to our local A/C shop. The checked for error codes - found none.
The evacuated and refilled the system. Nothing has worked...
Any suggestions?
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Old Sep 3, 2024 | 05:29 PM
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"no codes" is very unlikely. What tool was used to perform the vehicle scan? VCDS?
Are you saying the AC light goes out shortly after you turn it on, or the AC light stays on, but the air doesn't cool? If the radiator fan doesn't come on when you turn on the AC, the AC has 0 chance of working.
If you have VCDS, then what are the G395 pressure value and N280 current value doing when you change from AC off to AC on?
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