rear shocks? on 1999 BMW 740iL

everytime i get in to my car it makes this noise by tha rear tires and at 1st i thought it was my breaks but it makes that same sound even when im in park. then i came to the conclusion that it could be my shocks trying to raise up but its not raising up so it keeps making that noise....what could be the problem and how much would it cost to repair?

Asked by for the 1999 BMW 740iL
This tyoe of estimate can only be given after a diagnosis is made, and a diagnosis will likely start with a 1 hour diagnostic fee.