Last week my car began giving me a psm error. So I took the car in and the tech notified me that it was ok. Yesterday as im going about 60 on the freeway the psm error pops up...my car decides to shut off, I have no steering control...I start pumping the brakes and luckily I was able to stop the car put it in park and get it restarted. I drive off the freeway and as I pull up to the freeway off ramp the front of my car collapses... my front air suspension gives up and I get an warning air suspension failiure.

WTF should I do?

 

take it to the dealer maybe

 

Yeah, that would be a prudent decision at this juncture.

 

 

obviously...but any indications on what this may be caused by? my car is moded, ECU, bypass etc...no lowering module, and I dont want the dealer to make any excuses...considering their tech looked at the car and informed there were no issues with it.

 

Take it back to the dealer and take them for a ride. It could be that your computer needs to be reset or replaced since it is not storing codes, is lowering the ride height without being told to, and thinks there is a PSM error.
The other thing is that if your PSM really could be malfunctioning- it can trigger a ride height change and signal the computer to shut down.
The reason I bring up the computer first is because your computer didn't produce the code when they scanned it for codes.
Honestly, we cannot say for sure since we are not connected to your car.
Or, it could also be your PASM that is failing and triggering your PSM warnings- but then why didn't your computer report the proper code identifing that issue.
Ultimately, if your dealer treated you poorly when he couldn't find the error you should go to a different one if you can.
If I were you, I would have it flatbedded in and not take a chance driving it again until the problem is solved.
Good luck!

 

Sell the car and get ML63!

 

Wow, that was helpful.

 

did you put chevron again?



























sry to hear your trouble.

 

ML63 is crap, if the Cayenne was not made maybe..

but i'd rather get the G55

 

that's a known issue.. might be the compressor...

 

sorry i couldn't be more help!

 

+1 here.

wish i can help....

 

Or, it could also bea compressor for your PASM that is failing and triggering your PSM warnings- but then why didn't your computer report the proper code identifing that issue???
Alex heard of this, so you should Google cayenne compressor failure.

 

Here's a thread from rennlist:

http://forums.rennlist.com/rennforum...ferrerid=25879