On my 2003 330i, when I put the car in reverse the mirror will tilt like it is supposed to to the full tilt position. and other times it goes half way and other times it just moves maybe 1/2 inch to an 1 inch. The adjusting button is in the left position and not in the right. Sometimes I put the car back in drive and then in reverse and repeat this process until it tilts to its correct position. any thoughts on what may be causing this issue or how to fix/replace this feature. Thanks in advance for the help and suggestions. New BMW owner and glad to have this forum as a resource.