Rear Air Suspension Problems

[Drainbamaged]

I had this problem also when i bought my 03 and this is how i found out the problem after the dealership looked at it 3 times. (you can also use this method to find a slow leak in a tire )
1. Get a spray bottle, put some baby shampoo or dish washing liquid and water in it.
2. Spray the mixture over each part of the air suspension components seperatly.
3. Watch for bubbles.

I would recommend to do one component at a time so you can realy analyze each part to see if there is a leak. Spray the mixture everywhere and heavy.
If you have a leak you will most likely find it.