Cayenne AC and ventilation system - Please Help

[MTRX]

Could someone tell me how can I get a fresh air from outside when my AC is off (Econ mode is on)? It seems like when turn my AC and just use fan to ventilate air from outside it for some reason blows engine warm air inside the car... I have asked the dealer and they say that this is normal and that is how it works! But I totally disagree with them. Here is an example. You drive during the day when temperatur is forx example 80 degrees, then around 6pm temp cools of down to 70 and you turn your AC (set to Econ) mode and at this point want to get 70 degrees cool air from outside but I can never manage that, it always blows warm hair no matter what temperature I set. Can someone help please?

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[MTRX]

Anyone? I would appreciate your feedback. I just wanted to know if that is normal for Cayenne or if there is something wrong with my car.

[Phantom911]

Mine does that too. Very annoying but sadly, it seems to be the way it is. If thats the temp of the air that has to be cooled, the system can't be very efficient.

[ONE234]

the only way to get fresh air (from outside) when the air con is off is to......(wait for it)......wind the window down.

seriously though, why would you not want to run without the air con on? even in cold england i have the air con on 24/7?
i just regulate it with the climate control settings.

[MTRX]

First of all when you are running AC you are putting pressure on your engine, so if it's cool outside why would you need to run AC when you can get a fresh air from outside?

Also, when you are running AC your miles per gallon go down. I personally get 3-4 gallons less when AC is running, so that's another reason not to have AC on when it is cool outside.

Rolling winodws down is a solution if you are on driving on the freeway

So it sounds like this system can only work as ac, not as ventilator that would blow outside temp air..