Abstract: An assembly for detecting defects on a bodywork of a motor vehicle that includes a gantry, of inverted U-shaped cross section, shaped to allow the passage of the motor vehicle in a longitudinal direction, from the rear of the gantry to the front of the gantry. The gantry includes an inner surface extending transversely between two lateral free ends and includes a light source suitable for illuminating, the bodywork, the gantry including at least one opaque strip extending transversely over the entire length of the inner surface. The assembly includes a plurality of cameras installed at a distance from the gantry to capture images of the bodywork of the motor vehicle, and a detection member for detecting defects in the bodywork.