Thank you guys for all of your help! Unfortunatly both the calliper I bought and thye MC was from a "McParts." Shure enough when I got the caliper it was broken and they had to order me another one. lol After working on the brakes for a month and never having this much truoble in all my life, I finally decided to take the car into the shop and let them take care of it. I appreciate all the advice everyone has given me, and next time I will strongly consider getting parts from Mercedes. I just assumed, since the "McParts" caliper also an Ate, it wouldn't be any different than an Ate caliper from Mercedes. Just like the old saying, we all know what happens when you assume...... lol
Thanks Again!!