Well, I finally found that I have an air leak on my driver side airbag (the bag appears to have dry rot causing cracking). I should have the new part in this week and I'm in high hopes that my air suspension will be fixed. Other than the whole self leveling suspension ordeal, I absolutely love my 4.8is. I've owned lots of other vehicles in the past, however, BWM is by far the most fun to drive. I'm really surprised on how well it drove on snow from recent storms even with low profile tires!!