2005 BMW X3 EfficientDynamics Concept

For 2006, the U.S.-spec X3 lost its 2.5L M54 inline 6-cylinder engine for the 2.5i model. The only model available from 2006 onwards for the U.S.-spec X3 was the 3.0L M54 inline 6-cylinder engine (later, the N52 inline 6-cylinder engine) and the 3.0i model (later, 3.0Si or xDrive30i). This further increased the X3’s base price.

In September 2006, the E83 received a facelift with revised headlights, grille, front bumper, tail lights, rear bumper, and interior.