Genuine HVAC blower motor regulator resistor, manufactured by HELLA, BEHR and MAHLE, interchange OE numbers A2218200110 / A2218706758 / A2218706858, supplier part number 5HL351321614. Professional electronic speed control module for Mercedes-Benz luxury sedan & coupe HVAC heater and air conditioning system.
This integrated power resistor module precisely adjusts blower fan speed to match climate control signals, resolves common faults including fan only working at high speed, intermittent fan cut-off, no airflow. Adopts large-area aluminum heat sink for efficient heat dissipation, high temperature resistant ceramic resistance core, anti-overload circuit design, stable performance under long-term high load. Full sealed plastic housing prevents short circuit caused by moisture and dust.
