123993d1176387810-trailer-hitch-164_brake_controller2 (1) PDF

A service bulletin detailing the installation process for an electric trailer brake controller in specified Mercedes-Benz models. It includes comprehensive wiring diagrams and instructions meant to guide technicians through the installation. Key details about the required parts, wire specifications, and safety warnings are provided. Images accompany the instructions, showing components and wiring connections to facilitate accurate installation. Clear guidelines are issued, emphasizing the use of approved components to ensure compatibility and safety.