Support device for an external cladding part of a motor vehicle, comprising - a support for receiving the external cladding part, which comprises at least one receiving shaft which extends in the vertical direction and has an inner toothing ; - at least one support finger which can be inserted into the receiving shaft and which comprises an external toothing on the lateral surface thereof and an end-face support region at a lower longitudinal end for supporting the support finger in the vertical direction on a support part of the motor vehicle; - wherein the support finger is rotatable relative to the receiving shaft , about the longitudinal axis thereof, between a release position and a fixing position; - wherein, in the release position, the external toothing and the internal toothing are not in engagement, such that the support finger is movable in the vertical direction relative to the receiving shaft ; - wherein in the fixing position, the external toothing and the internal toothing are in engagement, such that a movement of the support finger in the vertical direction relative to the receiving shaft is blocked, - wherein the support comprises an anti-rotation element which is designed to hold the support finger in the fixing position, characterised in that - the anti-rotation element comprises a flexible securing arm having a recess ; - the support finger comprises at least one radial protrusion ; - by rotating the support finger from the release position into the fixing position, the radial protrusion first bends the securing arm away and, upon reaching the fixing position, enters the recess , snapping back the securing arm . - a support for receiving the external cladding part, which comprises at least one receiving shaft which extends in the vertical direction and has an inner toothing ; - at least one support finger which can be inserted into the receiving shaft and which comprises an external toothing on the lateral surface thereof and an end-face support region at a lower longitudinal end for supporting the support finger in the vertical direction on a support part of the motor vehicle; - wherein the support finger is rotatable relative to the receiving shaft , about the longitudinal axis thereof, between a release position and a fixing position; - wherein, in the release position, the external toothing and the internal toothing are not in engagement, such that the support finger is movable in the vertical direction relative to the receiving shaft ; - wherein in the fixing position, the external toothing and the internal toothing are in engagement, such that a movement of the support finger in the vertical direction relative to the receiving shaft is blocked, - wherein the support comprises an anti-rotation element which is designed to hold the support finger in the fixing position, - the anti-rotation element comprises a flexible securing arm having a recess ; - the support finger comprises at least one radial protrusion ; - by rotating the support finger from the release position into the fixing position, the radial protrusion first bends the securing arm away and, upon reaching the fixing position, enters the recess , snapping back the securing arm . <EOS>