Originally Posted by AZX54.4

I replaced the front air struts a year ago and the air suspension has been performing flawless until recent. Occasionally I will walk out to the X5 after it has been parked and the entire rear end of the car is fully deflated and bottomed out. Both sides drop and are fully bottomed out. This only happens occasionally. Does this sound like both air springs in the back are leaking or possibly a leak in the line from the compressor or could it be a ride height sensor?