Bichito

Thanks JFP. I think I may be better off just getting the compressor replaced. I was looking for a DIY kind of situation, and although I am sure I can open it a have a look into it, maybe even fix it (or at least know for sure why it is not moving as soon as I engage it, it may not be worth the time and effort giving it has got 84k miles on it. Right? 

Hello hahnmgh63,

Thank you for your explanation. Quite technical. I noticed the metal cover on the clutch was bent outwards, the clutch would spin with the compressor but not its cover, which is the piece that engages the system. So I made that part to its regular shape so it would fit and engage into the compressor. Put the belt back on and ran the car. When I did, the car started hard and the rpm suddelty jumped high then down to normal. I lot of smoke came out. I checked and noticed that the black metal piece I fixed and engages, did not move but the bigger gear did move with the engine and belt, melting down the plastic inside it, that has the same shape as the black outter cover. My explanation is, once I made the engaged (supposing it was enganged) part or clutch move with the belt, it didnt and so the friction is breaking the inner rubber part. Maybe the compressor does not work thus the friction when engaged. I dont know. Am I missing something?

I did not know about vaccuming the gas. You mean extracting the gas out of the system completely until there is no more pressure or gas in it? I did that before but didnt help. Are we talking about the same vaccuming? I also gave 12v to the compressor but nothing happened. All very confusing.

Thank you JFP! Very useful. Im gonna look into that and see if current is going through, otherwise, I will have to look into a new compressor I guess.

Im sorry. I am new to forums.

I run a 2004 cayenne 4.5L turbo with 85k miles on it. The ac compressor doesnt engage. I notices the clutch was someone eroded and bent, almost cracked. I made that piece good again and when tried, the car melted the plastic in the clutch as if the compressor would not move.

I intention is to find out if it is the relay that is not working, before purchasing an expensive compressor. Thanks

Hi everyone!

I know you may all know by now the location of the a/c relay in you cayenne, and as easy as it may sound, I cant find it anywhere. I am usiming it is located in the e-box, hoever, there are a few there and I cant find any directions to which one from those it is.

Any suggestions?