This document is the March/April 2011 issue of StarTuned magazine, which provides technical information for independent Mercedes-Benz service professionals. The main articles discuss Sensotronic Brake Control systems, performing effective collision repairs, and using electronic tools like the EPC to streamline repairs. The summary emphasizes properly deactivating and reactivating SBC systems, thoroughly bleeding the brakes, using chassis alignment jigs for frame repairs, and leveraging online resources to determine vehicle construction materials and repair procedures.