A lighting device (10) for a motor vehicle headlight, comprising:



a first light module (100) for generating a low beam distribution,
a second light module (200) for generating a high beam distribution having a light-guiding body (220), in which light-guiding body (220) light can be irradiated via a coupling surface (221) and can be decoupled via a decoupling surface (222),

the light-guiding body (220) having a first reflective surface (223a) on a roof side (223), and

a projection lens (500) that is configured to image the light that can be generated by the first and second light modules (100, 200) in front of the lighting device (10),

the light-guiding body (220) being designed in such a way that an aperture for part of the light that can be generated by the first light module (100) is arranged between the first light module (100) and the projection lens (500), the lighting device (10) comprising a third light module (300) for generating an additional light distribution, and the light-guiding body (220) having a bottom surface (224) that has a second reflective surface (224a),

the third light module (300) being arranged in such a way that part of the light can be reflected from the second reflective surface (224a).