Electrically switchable motor-vehicle glazing

An electrically switchable motor vehicle glazing for a window of a motor vehicle adapted to change at least one optical property of the vehicle glazing for the window in response to an electrical signal, said motor vehicle having a body, comprising:

• a one-piece housing connected to a drive housing or cable drum housing of a vehicle window regulator of the motor vehicle, without fastening devices to join said one-piece housing to said drive housing or cable drum housing, wherein said one-piece housing and drive housing or cable drum housing together remain substantially stationary relative to the body;
• a control or regulation unit removably insertable into and held in the one-piece housing and thereby segregated from other components of the vehicle window regulator, said control or regulation unit being configured for feeding the electrical signal for opening and closing the vehicle glazing;
• and
• a line adapted to transmit the electrical signal from the control or regulation unit to a window pane holder of the vehicle glazing, wherein a distal end of the line includes a plug that directly inserts into the control or regulation unit.