So last few days has been unusually hot and humid on the NH/ME seacoast. I have the HVAC set to the lowest setting most of the time and alternate between fresh air and recirculation. I like it very cool in my car and house, people say I'm nuts, a few people now come over for our dinner parties and bring winter coats with them cause we usually have the house very cool. So cool we've been known to have condensation on all the doors and windows in the house, and at times when driven long enough on our vehicle windows , dash vents, etc.
Anyhow.. the problem I'm seeing:

When I've driven the beast for a while then parked for 20-45 mins, then gotten back in the A/C takes a good 10-12 mins before it's cool again. Issue? known problem? or am I just crazy? :-) in the rovers I've had it was 90 seconds and it was pumping out cool air after restart.

Thanks all !

 

AC is not the strong suit in the Cayenne. It's been a common complaint since day one. The test conditions Porsche uses to evaluate the AC strength require a steady 2K RPM for 5 minutes. In just about all the other cars I've owned, the AC will blow cold at idle. It's made worse if you have 4-zone.

It can be 100 degrees out, and if the car comes out of our parking garage (not heat soaked), it can keep it cool just fine. If the car sits outside all day and is head soaked, it takes a good 10 minutes or more before the temps are reasonable, maybe a bit longer if I'm in traffic or the city where I don't have steady engine speeds.

At idle, my car can only do a 25 degree drop in vent temps from ambient. Closer to 50 if the engine is held at 2K rpm.

 

have you had the freon checked? i live in dallas and if the freon is just a little low it makes a big difference. check your cabin filter... but yea, it takes a bit to get the cooling going. a windshield reflector helps a lot... http://www.calcarcover.com/wizard/uv/747/ these hard side ones take up more space but really make a huge difference in the temp when you get back in... and save your dash board from wear... crack the sunroof to vent out some heat will help.

 

Lovely , #2 reason why I miss the range rovers , a/c you could freeze meat inside them ! #1 reason road noise is less in rovers .

Thanks for the info ! I do have 4-zone but it's usually off cause 99% of the time I'm alone in it .

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It's going in this week for airbag replacement , I'll have them also check the a/c & freon level. I do have windshield reflector , and I also have the side shades up , and sunroof shade closed as well .

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Is your Engine Light on? I ask because I discovered that the car automatically puts itself in a reduced ability to cool the car when there is an engine fault code. Clear the code, the AC begins to operate normally.

 

no lights , no faults , and I always shut off the flipping auto start/stop stupid feature.

Keep in mind mine is a 2014 , but a left over purchased the end of 2/15.

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AC is a closed system. If refrigerant is low that means there is a leak - no way around that. I live in a town that sees high 90's to low 100's all summer long and it takes a while to cool the car down. Maybe you should start doing bikram yoga to recalibrate your internal thermostat.

 

Ha , I always hated hot humid weather hence why I live in New Hampshire and look forward to fall and winter . Anything above 72 and 60% humidity I'm cranky

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My rovers , I've had frost form on the windows after a while of driving that's how good the rover systems are

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Update

Pass airbag replaced ( recall)
A/C issue : leak die put into the system & .9lbs freon also was put in .
Cabin air filter replaced
Software updates


Fingers crossed

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