Rear view mirror assembly comprising at least a mirror base and a mirror housing with a reflective element or a camera and with a turn signal indicator module comprising: a housing, a lens, a light guide smoothly following the outer contour of the rear view mirror and having two portions (13a, 13b) that are separated from each other by a recess in the light guide, with the recess receiving at least one light source, and a decoupling rear end ending at a position from which emitted light falls in a direction rearwardly, wherein the light guide is integrated in the lens along the long axis of the turn signal indicator and two LEDs (11a, 11b) are mounted on both sides of a printed circuit board protected by the turn signal housing forming a cover after being connected to the lens, and, wherein the lengths (La, Lb) of the two light guide portions (13a, 13b) are related by the function La > 2 x Lb, such that the one LED (lib) emits light towards the decoupling rear end of the turn signal indicator module through the shorter light guide portion and the other LED emits its light into the longer light guide portion for illumination of the same, characterized in that the light guide recess has the height H2 covered by material of the strength H1 such that the thickness of the light guide is generated by H1 and H2, the total size of the light guide depends on the LEDs (11a, 11b) which are completely inserted in the opening provided by the light guide recess in order to emit light into the two portions of the light guide, and the recess has convex shaped side walls with radius r2 and the LEDs are in the focus of the convex faces, with the convex faces guiding the LEDs. a housing, a lens, a light guide smoothly following the outer contour of the rear view mirror and having two portions (13a, 13b) that are separated from each other by a recess in the light guide, with the recess receiving at least one light source, and a decoupling rear end ending at a position from which emitted light falls in a direction rearwardly, wherein the light guide is integrated in the lens along the long axis of the turn signal indicator and two LEDs (11a, 11b) are mounted on both sides of a printed circuit board protected by the turn signal housing forming a cover after being connected to the lens, and, wherein the lengths (La, Lb) of the two light guide portions (13a, 13b) are related by the function La > 2 x Lb, such that the one LED (lib) emits light towards the decoupling rear end of the turn signal indicator module through the shorter light guide portion and the other LED emits its light into the longer light guide portion for illumination of the same, characterized in that the light guide recess has the height H2 covered by material of the strength H1 such that the thickness of the light guide is generated by H1 and H2, the total size of the light guide depends on the LEDs (11a, 11b) which are completely inserted in the opening provided by the light guide recess in order to emit light into the two portions of the light guide, and the recess has convex shaped side walls with radius r2 and the LEDs are in the focus of the convex faces, with the convex faces guiding the LEDs.