Hi,
derivatives MPC5747C, MPC5748C (yours), MPC5746G, MPC5747G and MPC5748G are covered by the same BSDL file:
https://community.nxp.com/servlet/JiveServlet/download/824832-1-391840/MPC5748G_BSDL.zip
Different BSDL file is needed for MPC5744B, MPC5745B, MPC5746B, MPC5744C, MPC5745C and MPC5746C - attached.
Regards,
Lukas