Help! all foour wheels dropped with susp Inactive!
 

All for wheels dropped low and i get the suspension inactive message. Do anyone think its the air compessor or what?

Could be the compressor/valve block, could be the control unit, etc. A good first step would be to check the fuses, if they are good and have voltage you may need to have the EHCII control unit faults read/analyzed and system tested. (would need GT1 equipped shop or dealer)

Well all the fuses are checked out ok. So i hope it wont be a major repair bill. A few years ago i had the susp inactive problem. That time it was a burst suspension bag and it was a big repair bill.