mjw930

Well, I picked up my new to me '04 CTT and drove it home from Atlanta last Wednesday. Everything was perfect, the truck was as advertised (better IMHO), the weather was perfect and I was cruising down I-75 with an ear to ear grin when an alarm and a yellow warning message on the display trashes the mood, "Air Suspension Faulty......". It still works and the error clears after power is cycled but still, it takes a bit of the luster off the whole "event" of buying and driving the new to me truck home. The problem only pops up after about an hour of sustained running. The truck is under warranty and I needed to take it in for the 20K service anyway so I'm not upset, just pissed.

I thought I'd put a little poll together to see how prevelent this issue is. Dealer tells me it's very common and they will probably find one of the sensors bad based on the internal code and simply replace it.

skl

I get the message intermittently and it goes away after turning off the ignition. Maybe I shouldn't but I just ignore it. The dealer checked the memory but didn't find anything specific wrong...

pdxjim

I had the message a couple of times and it would clear when it was restarted. But, this past winter it came on and did not go off. Took it into the dealer and a part was replaced and have had no problems for months now.

JPhillips-998

I'm "assuming" fixed. I have the problem now and will be taking to the dealer next week. Everything seems to work, but I do have the fault error.

bamaxraydoc

I had the fault. Compressor was replaced after many trips to the dealer: so far, so good.

Brent 89-GT

This is how it was explained to me by the tech at the dealer. The Cayenne has a complex electrical system. If voltage drops even a little the car starts shutting down systems. The air suspension is one of the first to set a code. When mine isn't driven for a week or two it will sometimes set the code. It has only happened a couple of times and when they checked codes there was no problem.

So, it could just be that the truck was not driven enough to have the system fully charged and it triggered the code. I haven't had any function issues and the code has coincided with not driving it for a period.

mjw930

Good to know, I'll make note.

It goes into the dealer Friday for the 20K service. The fact that it set the code means I can claim a warranty repair and get a loaner, even if they don't find anything. (I didn't buy the car from this dealer so loaners are only for warranty repairs)

I spoke to the previous owner and he said it happened once before and after it went to the dealer it never came back but then it wasn't driven for almost 2 months up until i bought it.

mjw930

Well, on the 20K service there were no history fault codes BUT, last Friday I was driving in the general vicinity of the local dealer and it threw the error again. I pulled it into the dealer and left it running so the code wouldn't reset. They got a read and it identified an erroneous signal from a left front sensor (don't remember if it was an accelerometer or height sensor). They overnighted the part and will install it this afternoon.

These intermittent issues are a pain and it surprises me that the ECM doesn't store the code in history. It seems that if it's able to reset on the next power-up it clears the code. Bad program design IMHO.

Kooser

mjw930 I have been one of the "lucky ones" with this issue, but I am sure that I have had some other quirks you may never encounter.

Service has ALWAYS been a pleasure (not terribly inconvenient either), albeit more frequent than I would have liked, but now that a few exorcisms have been performed the car has a free soul once again!