Abstract: The invention relates to an adjusting instrument for an exterior vision unit for a vehicle, comprising a base shaft and a housing surrounding the base shaft which is pivotable around a longitudinal axis adjustment range between at least a park position and a drive position. The adjusting instrument further comprises a driving gearwheel, a gearwheel body, and a spring. The driving gearwheel includes a face provided with an outer toothing surrounding the base shaft, defining a face height within which a web part of the gearwheel body extends in a transverse plane with respect to the base shaft. The spring surrounds the base shaft and is supported on a support surface of the gearwheel body, exerting a force on the driving gearwheel along the longitudinal axis. The support surface lies recessed in an axial direction with respect to the transverse plane, such that the spring reaches through the transverse plane.

Abstract: An adjustable mirror (1) is provided with a mirror housing (1?) and a mirror foot (1?), coupled via a pivot (5) and a motor mirror adjustment device. The motor mirror adjustment device is provided with a housing (3) which includes a bearing part (3?); an electric motor (4); and a gear transmission for transmitting rotation of the electric motor to the pivot. The gear transmission is supported against the bearing part and includes drive elements such as gears and/or worms (6?) and/or worm gears (6), and an output gear (8) which is connected to the pivot. The gear transmission is provided with a resilient element (10) between one of the drive elements and the bearing part, or between the drive elements mutually, and is designed to generate a bias between the one of the drive elements and the bearing part.