Lighting device for a motor vehicle headlamp, comprising - at least one first light module with at least one light source for generating a low beam distribution in the direction of a main beam direction, - at least one second light module for generating a main beam distribution, the second light module comprising at least one light source and a light guide body, into which light guide body light from the light source can be radiated into the light guide body via an input coupling surface and can be coupled out in the direction of the main radiation direction via an output coupling surface, the light guide body having a first reflective surface on a roof side extending from the coupling-in surface to the coupling-out surface, and the light guide body being arranged relative to the first light module in such a way that at least some of the coupled-out light which can be generated by the first light module can be reflected at the first reflective surface, and - at least one projection lens, which is set up to image the light that can be generated by the first and second light modules (100, 200) in front of the illumination device, wherein the light guide body is designed in such a way that a diaphragm for a part of the light which can be generated by the first light module for generating the dipped beam light distribution is arranged between the first light module and the projection lens, wherein the lighting device comprises at least one third light module with a light source for generating an additional light distribution, and wherein the light guide body of the second light module has a base surface which faces away from the roof surface and which has a second reflective surface at least in sections, wherein the third light module is arranged such that at least a portion of the producible decoupled light of the third light module is reflectable by the second reflective surface of the light guide body, and wherein the projection lens is arranged to image the light which can be generated by the third light module in front of the illumination device, characterized in that the base surface and the decoupling surface of the light guide body form a lower edge in a common surface intersection line, wherein the second reflective surface ends at a distance from the lower edge and exposes a coupling-in region on the underside, into which a part of the light of the third light module can be coupled in and can be coupled out again via the coupling-out surface of the light guide body. - at least one first light module with at least one light source for generating a low beam distribution in the direction of a main beam direction, - at least one second light module for generating a main beam distribution, the second light module comprising at least one light source and a light guide body, into which light guide body light from the light source can be radiated into the light guide body via an input coupling surface and can be coupled out in the direction of the main radiation direction via an output coupling surface, the light guide body having a first reflective surface on a roof side extending from the coupling-in surface to the coupling-out surface, and the light guide body being arranged relative to the first light module in such a way that at least some of the coupled-out light which can be generated by the first light module can be reflected at the first reflective surface, and - at least one projection lens, which is set up to image the light that can be generated by the first and second light modules (100, 200) in front of the illumination device, - at least one projection lens, which is set up to image the light that can be generated by the first and second light modules (100, 200) in front of the illumination device, wherein the light guide body is designed in such a way that a diaphragm for a part of the light which can be generated by the first light module for generating the dipped beam light distribution is arranged between the first light module and the projection lens, wherein the lighting device comprises at least one third light module with a light source for generating an additional light distribution, and wherein the light guide body of the second light module has a base surface which faces away from the roof surface and which has a second reflective surface at least in sections, wherein the third light module is arranged such that at least a portion of the producible decoupled light of the third light module is reflectable by the second reflective surface of the light guide body, and wherein the projection lens is arranged to image the light which can be generated by the third light module in front of the illumination device, characterized in that the base surface and the decoupling surface of the light guide body form a lower edge in a common surface intersection line, wherein the second reflective surface ends at a distance from the lower edge and exposes a coupling-in region on the underside, into which a part of the light of the third light module can be coupled in and can be coupled out again via the coupling-out surface of the light guide body.