Blower Resistor (Blower Regulator, Heater Control Unit) Mercedes-benz 0255453332 Blower Resistor also known as:Blower RegulatorHeater Control UnitHeater Blower RegulatorHeater Blower ResistorThe Manufacturer part number is: MERCEDES-BENZ 0255453332 Blower Resistor (Blower Regulator, Heater Control Unit) Mercedes-benz 0255453332