motor drive when the internal combustion engine drive is switched off the motor vehicle vacuum pump 1 driven by the electric motor is operated in the motor vehicle in order to produce a reduced pressure e g in a brake booster embodied as a vacuum type booster with its side facing away from a pump housing surface 8 the pump cover 5 defines the working chamber of the motor vehicle vacuum pump 1 provided in the pump housing surface 8 is a passage opening 10 which allows a gaseous working medium to pass through from the working chamber of the motor vehicle vacuum pump 1 the passage opening 10 is embodied as a slotted hole and has the form of a circular arc in plan view the pump cover 5 with the pump housing surface 8 has essentially the form of a circular disk on which three fastening recesses 11 12 13 are formed radially on the outside the fastening recesses 11 to 13 delimit through holes through which fastening means can be passed the pump cover 5 is formed from an aluminum material the aluminum material is preferably a spray compacted aluminum material the spray compacted aluminum material preferably has a silicon component of more than fifteen percent.