By all means, try the search function.
I struggle with it sometimes, but try entering something basic, like "nitrogen", or "nitrogen cells", or even "self leveling suspension".
You'll get some hits that don't apply to your car, but believe me, there are a ton of threads that deal with your issue.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".