Motor vehicle headlamp

The invention relates to a motor vehicle headlamp (10) with at least one semiconductor light source (14) and a primary optical system (16) which collects light emitted from the semiconductor light source (16) and is directed to a secondary optical system (18), wherein the primary optical system (16) receives the light from the light source (14) via a light entry surface (26) and the light is emitted out via a light exit surface (28), wherein the primary optical system (16) has a connecting flange (42) with which the primary optical system is kept in a holder (34) in at least two fixed bearings (52), the fixed bearings are arranged in a first plane, which is parallel to a second plane, a distance (a) is arranged between the first plane and the second plane, and the light entry surface is arranged in the second plane. The motor vehicle headlamp is characterized in that a first section (44) of the connecting flange (42) is curved like a dome.