A control unit for an electric heating device, in particular for a motor vehicle, - having a first and at least one second housing part , each of which jointly bound a housing interior on the inside and which separate the housing interior , preferentially in a dust and liquid-tight manner, from an external environment of the control unit , - having a low-voltage and high-voltage interface each of which being arranged on the first housing part on the outside, - having control electronics which are received in the housing interior and which are electrically connected to the low-voltage interface by via an electrical low-voltage line and to the high-voltage interface by via an electrical high-voltage line , - wherein the low-voltage and/or the high-voltage line at their line end arranged in the housing interior comprises at least one first press fit element , which, electrically connecting the control electronics to the relevant interface , forms a press fit with a second press fit element present on the control electronics , - wherein the high-voltage line comprises a high-voltage bus-bar , - wherein the high-voltage bus-bar in regions is embedded in a material of the first housing part , preferentially overmolded with the material of the first housing part , characterized in that - the high-voltage line , at least in a passage region , in which the high-voltage line passes through the first housing part from the outside to the inside, comprises a high-voltage cable ; and that - the high-voltage cable is electrically connected to the high-voltage bus-bar in the housing interior in an integrally bonded manner, in particular soldered. - having a first and at least one second housing part , each of which jointly bound a housing interior on the inside and which separate the housing interior , preferentially in a dust and liquid-tight manner, from an external environment of the control unit , - having a low-voltage and high-voltage interface each of which being arranged on the first housing part on the outside, - having control electronics which are received in the housing interior and which are electrically connected to the low-voltage interface by via an electrical low-voltage line and to the high-voltage interface by via an electrical high-voltage line , - wherein the low-voltage and/or the high-voltage line at their line end arranged in the housing interior comprises at least one first press fit element , which, electrically connecting the control electronics to the relevant interface , forms a press fit with a second press fit element present on the control electronics , - wherein the high-voltage line comprises a high-voltage bus-bar , - wherein the high-voltage bus-bar in regions is embedded in a material of the first housing part , preferentially overmolded with the material of the first housing part , characterized in that - the high-voltage line , at least in a passage region , in which the high-voltage line passes through the first housing part from the outside to the inside, comprises a high-voltage cable ; and that - the high-voltage cable is electrically connected to the high-voltage bus-bar in the housing interior in an integrally bonded manner, in particular soldered. <EOS>