Hi guys... I have a suspension fault I can't shift and need help.

For the last few months when you go to the car it would let out a puff of air when you got in and every few minutes after unlocking. Thought it was the solenoid, changed it and rebuild the dryer etc to no avail.
Just left it since then, but today I got a suspension fault that wouldn’t clear... standard ‘can't vent gallery pressure fault’... then I noticed (as I was driving at the time) the compressor exhaust was making a puff every 10 seconds. I managed to get somewhere to stop as I was worried about it dropping to the bump stops. I turned it off and locked it and it was still blowing out every 10 seconds!
I put the key in and the compressor did not engage at all. I cleared the fault and still didn't hear it. I then decided to unplug the solenoid so I could make it home.
Then I got my spare solenoid and connected it off the compressor and I can hear it is engaged all the time even when the car is on.
Any ideas I’m pulling my hair out…
Cheers Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

iid seems to permanently show 100% open for the exhaust valve - the other body’s and solenoids etc say 0% Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Check height sensor readings for an anomaly?

Be been driving with that screen up permanently to check it doesn’t suddenly drop - all looks above board Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Check them with iid tool or similar, what shows on screen may not be a true picture of the state of things, can't think of anything else tbh

Good luck

Ps sorted injectors out and all back to normal on first start of the day 👍

Awesome did you change them all? Glad it was the same fault Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Just stripped and cleaned them , all seals looked good ,no dirt or grime evident, but its done the job.

Magic jet singles with about 30000 miles on them , they changed the design slightly sometime
between the last set and these ones , different seal set up , much better

Awesome….

Meanwhile I put 12v on the compressor and it ran fine so that’s not the problem… I put another exhaust solenoid onto that’s not it. Something is telling something to vent every 10 seconds and I have no idea what. I even unplugged the valve block in the boot that goes to the compressor and it still had the same 10 seconds puff so not electronic from there… I’m at a loss… Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

A small update… I was convinced that the puff of exhaust would happen from the exhaust or straight from the main pipe feeding to the compressor so I disconnected it… I was wrong… air came out fast for about 3 seconds along with a lot of water droplets… i then took the exhaust solenoid out and it was wet… I check the drier it was bone dry. So i then left the solenoid out and started it a few times to let it blow the wet water out. Then I put it back together and it’s all good now 😃… I am a realist though something is causing moisture in the air to the system and it’s not in the compressor and this will likely happen again until resolved. Any ideas? Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF

Just to close this off I ran a full discharge of air through iid tool and reinfected and drove 200 miles yesterday… so far so good. Got a water trap to put inline too Current stable:
2006 BMW M6
2007 4.2 V8 S/C FF
Gone:
2002 4.4 V8 FF