Model Compatibility: Fits X3 MAX vehicles as a replacement for the quarter door storage bag component. Part Number Match: Designed to match specification 715004276 for functional equivalence with the. Functional Purpose: Restores the quarter door storage bag function in X3 MAX vehicles without modification. Installation Requirement: Installs in the same location and manner as the quarter door storage bag. Design Alignment: Maintains the same form, fit, and function as the X3 MAX quarter door storage bag.