2 days ago i was driving and the warning massage about inactive self leveling inactived pop up on the dash. I drove it home and the next morning i checked all the fuse relate to air suspension they were all fine. I disconnected the battery for 30 mins try to reset it and the warning still there. Today after i went to a store to shop and come out i see the front on driver side dropped real low, almost only 1 finger gap from the wheel to the fender. I drove it home since my house only a few blocks away. Anyway after i get home i see the front was raising back to normal level.

Do i have a leaky airbag? How do i check if i have a leaky airbag? After i replace the airbag do i have to reset the faulty nassage to go away? Where is the best place to buy the airbag for 4.8is? Thanks in advance