Mercedes HVAC Heater Blend Door Actuator - Genuine Mercedes 1638200908

Product Information

An HVAC blend door actuator is a small electric motor that controls the movement of the blend door(s) inside a vehicle’s heating and air conditioning system. By adjusting the position of the door, it regulates the mix of hot and cold air, allowing the cabin temperature to be set to the driver’s preference.

• Inconsistent or incorrect cabin temperature, such as only hot or only cold air regardless of settings.
• Clicking or knocking noises from behind the dashboard when adjusting climate controls, caused by broken gears inside the actuator.
• Unresponsive climate control adjustments, where temperature or airflow direction does not change as commanded.

About Genuine Mercedes

The original parts used by Mercedes Benz to build your car are available as replacement parts under the “Genuine Mercedes Benz” brand. Manufactured under the direction of Mercedes Benz, expect excellent quality and a premium price since these parts are exclusively available through the Mercedes Benz Dealership network.

You may not realize this, but the parts that make up your Mercedes-Benz are not necessarily manufactured by Mercedes-Benz. No cause for concern, as Mercedes-Benz designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for Mercedes-Benz for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine Mercedes-Benz parts box and find an OEM branded part inside, simply with the addition of a Mercedes-Benz logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.