gaber6

Not that a new compressor isn't a bad idea but a $17 ring kit could have possibly done the job, too. I just replaced my find rind and it fixed similar symptoms of no air out of the hose.

rocky_mtn_a4

Not necessarily as you can see my codes posted on page 1 point towards shorts in the compressor internally :

01770 - Temperature Sensor for Level Control Pump/Compressor (G290)
007 - Short to Ground - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 3
Fault Frequency: 7
Reset counter: 173
Mileage: 172786 km
Time Indication: 0
Date: 2017.02.03
Time: 10:23:45

01397 - Venting Solenoid for Level Control (N111)
009 - Open or Short to Ground - Intermittent
Freeze Frame:
Fault Status: 00101001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 172
Mileage: 173614 km
Time Indication: 0
Date: 2017.02.17
Time: 00:19:31

01770 - Temperature Sensor for Level Control Pump/Compressor (G290)
010 - Open or Short to Plus - Intermittent
Freeze Frame:
Fault Status: 00101001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 172
Mileage: 173614 km
Time Indication: 0
Date: 2017.02.17
Time: 00:19:31

01399 - Relay for Level-Control Compressor (J403)
009 - Open or Short to Ground - Intermittent
Freeze Frame:
Fault Status: 00101001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 168
Mileage: 0 km
Time Indication: 0

These codes indicated to me that even if I were to revive compression with a rebuild kit, that numerous sensors had open shorts. These I'm assuming tell the onboard controller to send, or not send voltage to the compressor. Either way, I was not getting voltage to the power supply terminals until the new compressor was fitted. Everything seems to be pretty good right now. I'm keeping a steady 7-1/4" top of rim to wheel well on the fronts, and 6-7/8" on the rears when parked in jack and lift mode. I'll continue to keep an eye on it, and this compressor is very quiet, but if you are listening close enough you can hear it run...and it's never very long. Self leveling is all working proper as well. If anything changes, I'll post up...Thanks as always gents!

MP4.2+6.0

Good result. Yes, just keep monitoring for any dropping and long compressor runs. The 99.9% of time mine was in order, I could go for a trip away form car and home for even weeks, come back to car looking same as always, hop in and drive. The one time it crapped out w/ strut leak, came back and car was clearly on its front knees. Once resolved, again trouble free and never an issue sitting for long periods, no pampering with jack mode, etc.