Lighting and/or signalling device of an automobile

The device (1) has a light module (2) with an LED to generate light beam. A case includes a removable element (6) mounted on an intermediate element (5) in removable manner. The movable member is arranged to carry the module. A lens (9) is fixed on the intermediate element to close the case. The removable element extends on half of a surface of a rear face of the case. The intermediate element includes a guiding component (25) to guide the removable element when the removable element is mounted on the intermediate element, where the guiding component includes a rail arranged within the case. An independent claim is also included for a method for repairing a lighting and/or signaling device.