Mercedes-Benz Voltage Transformer Conversion Module A2059053414 / 2059053414 / 2054400073, original factory parameters direct replacement

Mercedes voltage conversion module (OEM A2059053414 / 2059053414 / 2054400073) installed in the engine bay or power distribution box; converts high-voltage battery voltage to stable low-voltage system current to power onboard electronics, lights, and control units. Direct replacement for OEM parts; compatible with C-Class, E-Class, S-Class hybrid or start-stop system models. Installation difficulty: medium; professional technician recommended; about 1.5–2 hours. If power supply to electronics is unstable or start-stop is abnormal, the module may be faulty and require replacement.