An automatic adjusting device for motor vehicle brakes includes a brake lever comprising a housing portion in which an adjusting gear comprising a worm and a worm wheel is located. The housing portion is connected through a clutch having frontal teeth and a drive member, with a lever having one end portion projecting into the housing portion and connected with a stationary part of the vehicle. The end portion of the lever projecting into the housing is provided with a stop that engages a recess provided in the housing portion. The cooperation between the recess and the stop limits the stroke of the brake lever.