Abstract: A brake actuating device of a motor vehicle brake system includes a master cylinder and a brake booster with a booster housing, with an attaching element for attaching the brake actuating device to a wall on the vehicle projecting through an opening from the booster housing. To improve the assembly, a means for the provisional attachment of the brake actuating device to the wall on the vehicle is provided, which cooperates in operative and/or positive engagement with the vehicle wall or a component that is arranged at the vehicle wall in an attached fashion.

Abstract: A brake actuating device of a motor vehicle brake system includes a master cylinder and a brake booster with a booster housing, with an attaching element for attaching the brake actuating device to a wall on the vehicle projecting through an opening from the booster housing. To improve the assembly, a means for the provisional attachment of the brake actuating device to the wall on the vehicle is provided, which cooperates in operative and/or positive engagement with the vehicle wall or a component that is arranged at the vehicle wall in an attached fashion.

Abstract: A vacuum brake power booster (1) has an electric travel sensor (3) for monitoring the position of a movable wall (4) furnishing the boosting power of the brake power booster. The travel sensor (3) is mounted by a sensor receptacle (2) which is made of plastic material and which is sealed off with respect to the booster housing (10) by means of a seal. In order to assure effective sealing by creating a constant degree of compression of the seal (7) despite different material thicknesses of the booster housing (10), angled tabs (12) are formed against which locking projections (11) are abutted.

Abstract: A boot (19) protecting the pedal-sided end (18) of the control valve housing (5) of a vacuum brake force booster is fixed by a spacer. The spacer is preferably configured as a dual-walled annular sleeve (20). It is axially secured in the same position as a ring sealing the control valve housing (5) against the booster housing (1). An axial extension (26) of sleeve (20) insures that the boot (19) is kept remote from the booster housing (1) and from the control valve housing (5), respectively, so that air can be taken in between boot (19) and control valve housing (5) for ventilating the working chamber (3). This design allows the air required for ventilation to travel very closely to the baffle wall, thereby minimizing noise in the passenger cabin of the automobile.