if you are in colder temps, then yeah as the air gets colder, its more dense and the bags will sag below the threshold. pump turns on to fill bags back up. its like when the air in your tires goes down a bit when its cold outside.
not much they can do if you are in a really cold climate. could be a leak, sure, but i think its just the outside temps.
and good grief you can hear the pump INSIDE the car?? yikes that sound and the fan in the engine are two distinct sounds.
i had a 2008 and it would do this here and there in the colder winter months. I think all the folks with the air bag suspension system have experienced this.
I'm in the Philly area..Its been in the mid 50s around here so it not really cold yet.. Yep I hear it inside as well as a bit of extra vibration. The thing is insanely loud. The leak makes sense so off the the shop tomorrow..
Thanks for all of the replies guys..
2 Degree Timing Advance