Adjustment mechanism (1) for a rear view device of a motor vehicle comprising a base frame (10), a rear view element support (11) for supporting a rear view element, wherein the rear view element support is pivotable connected to the base frame by means of a hinge construction (10A, 11A). It further comprises at least a potentiometer (2) to generate an electrical signal for indicating a pivoting angel between the base frame and the rear view element support. Said potentiometer comprises a base portion (20) securely attached to the base frame or the rear view element support, an input shaft (21) pivotally connected to the base portion of the potentiometer, a slide resistor, and a slider. One of the slide resistor and the slider is securely attached to the base portion of the potentiometer. The other one of the slide resistor and the slider is securely attached to the input shaft.
