Guys,
Have not posted much on this group but we have just acquired an 06 VDP that is stealing our heart...
Love the car, but new to me as we have an XK8 that has been in our care for 10 years.
At any rate, upon start up this am, we got the amber vehicle too low message. I could hear the pump cycle on and off about 6 times with no change in height, at which time we got the red suspension fault.
Have re started car and the results the same. I can hear the compressor cycle on, but can also hear hissing while compressor is pumping as if air is being expelled.
The front is noticeably lower and does nor appear to be moving at all.
I know there are stickies and contributed information from members I will be studying, but if there are some fast track suggestions from any, I would be big time appreciative....Typed on bended knee.
Thanks much, big much.

 

Well, as many others have experienced, "you have a leak." For starters, you can raise the hood, and listen while someone else starts the car. See if you can localize where the hissing is coming from.

 

Boomer thanks. Wife drove car home with no lights no issues. Past 2 days, car at what appears to be normal driving level and no hissing sounds whatsoever.... I know Jags don't fix themselves, but could cotroller have been out of sequence?
I need to study up this weekend on air suspension behavior to gain understanding.

 

When the system makes adjustments it will depresurise for say 2/3 seconds

and I think it's done via a valve on the compressor.

It may be that this valve was stuck open and is now closed.

 

Hi
I posted a while back about a low-tech way to check for leaks. Obviously, has to be actively leaking to check for leaks, but:
I went to local hardware store and bought a 1/8" brass cap, meant for plugging off the end of a brass water fixture. It screws right onto the air hose as it goes into the air shock (the strut). Costs $3, and let me figure out which air shock was leaking, as I capped off each shock one at a time to see which was leaking air.