The shift towards sustainability-oriented product development demands early integration of sustainability criteria, a challenge due to the lack of effective methods and data. Expanding on existing sustainability-oriented development processes, model-based systems engineering is used to model the SDP. The SDP model maps process steps, process objects and information flows. This approach combined with traditional MBSE methods ensures cohesive documentation and integration of sustainability data across various development stages and domains. Illustrated with the example of a battery case for a battery electric vehicle, our approach establishes a solid foundation for future sustainable PD by linking distributed sustainability information and parameters on process and product level.