sometimes when I backup after starting the car it makes a sometimes loud and str

What is your question?

I cannot describe the sound but it makes a sound like something is rubbing up against something else. It does not do this all the time. The car drives great but I wish I could figure out what it is. Someone told me the e brake might need adjusting. No leaks

What makes this problem better or worse?

na

How long has your 2005 BMW 330i had this problem?

ive had this problem now for about three months