I took my Mercedes S500 into German Auto to look at my air ride. I told the guys there that the back Shocks were out. I wanted to tell me what was wrong with the system besides the shocks. I go back 2 days later for and when I get there they said the couldn't tell me what's wrong with the system but charged me $150! They told me there were charging me back the found that the back shocks were out?! I told them that when I walked in the door! I also waited a month to post this so this is not me venting without thinking.