The Engine Control Unit (ECU) is the digital brain behind your electric or hybrid Mercedes-Benz, regulating performance, emissions, and energy distribution. Whether it’s a replacement after a fault or a necessary upgrade, ECU work demands specialist tools and model-specific knowledge. AT Technicians provides accurate ECU replacement and coding services exclusively for Mercedes-Benz EVs and hybrids. We start by identifying ECU-related faults using Xentry diagnostic tools, assessing internal memory, hardware integrity, and communication with other modules. If the unit is confirmed faulty, we safely remove it and install a new or reconditioned ECU. Our technicians then code and initialise the ECU to the specific vehicle using OEM-grade software, ensuring full compatibility with immobiliser, gearbox, battery management, and drive systems. We also perform software updates and adaptations post-installation to avoid error codes, miscommunication, or limp mode. Final validation includes drive cycle testing and diagnostic scans to confirm system integration. Trust AT Technicians to handle ECU replacements with accuracy, security, and manufacturer alignment keeping your electric Mercedes-Benz at peak intelligence.