Abstract: The invention relates to a bushing, particularly a moving gear bushing, consisting of at least a metallic or plastic core, and an elastomer body disposed around the core and connected with the core in an adhering manner. The bushing of the invention is characterized in that detectable material particles are embedded in the elastomer body or in an additional polymer matrix, particularly an elastomer matrix. The particles serve as a rotation angle transmitter and in turn cooperate with a rotation angle detector, with the aid of which angle changes within the bushing can be detected and in the form of a signal made available for headlight leveling control. In particular, the detectable material particles used form a strongly adhering bond with the core, and on the core create magnetic fields with alternating poles (N, S). The angle changes within the bushing are detected through the number of poles. The material particles are preferably rod magnets or magnetized ferrite particles.