Rattling over bumps, a loose feeling when driving, and play in the front wheels is the main indicator that your bushings may be failing. The stock rubber tends to get dry rotted, wear out, and cause play in the attachment point for the control arm. Replace yours when they wear out, or when replacing a control arm that didn't include these pieces.
This item fits the following BMWs:
BMW 5 Series - 525I, 525I Wagon, 528i, 528i Wagon, 530i
BMW Z Series - Z8
This Part Fits the Following Vehicles