To do a manual change of the mirror assembly, completely lower the window and take out the door inner trim panel. You can remove the mirror with the mirror by unclipping the mirror adjuster off the door panel. On 100 models, the mirror housing should be carefully unclipped and folded back, then the outer retaining screw should be loosened and removed followed by unscrewing the inner and outer screws after which the mirror assembly should be manipulated to clear out of the door and the insulation gasket removed. In A6 models, the inner trim panel of the mirror can be easily unclipped and removed in order to reach the retaining screws and then the retaining screws can be unscrewed and the mirror assembly and insulation gasket removed. Refitting is the same procedure, only the steps followed during removal are reversed, the adjuster is firmly clipped into the door panel and the mechanism is adjusted by putting the mirror glass and placing it in the midlevel of its movement, taking away the control knobs and turning the screws until resistance is felt. To adjust the mirrors in 100 models with electrically operated mirrors, lower the window, unwiggle then fold back the mirror housing to access the outer retaining screw, loosen the screws, then remove the insulation gasket, and re-connects the wiring connector. In A6 models, the door inner trim panel might need to be removed, the window needs to be lowered, the inner trim panel needs to be unclipped, the retaining screws need to be loosened and removed, the assembly needs to be maneuvered out of the door, the wiring connector needs to be disconnected and the insulation gasket needs to be recovered. The refitting is made in reverse and the gasket is properly fitted. The mirror glass is then clipped into place, when taking off, one should take great caution not to break the glass, you must tip the glass upwards then place a wedge between the glass and the housing and then carefully peel the glass off. Unless there is need to do so, disconnect the wiring connectors of heating element; and when refitting, connect up the wiring to the glass again, but ensure that it is clipped firmly in place. In the mirror switch and motor, take off the mirror glass, loosen the screws holding it, and take off the motor disconnecting the wiring connector. When refitting, re-connect the wiring and ensure the screws around the motor are tightened, and then ensure the motor operates, before refitting the glass.