Mercedes-Benz HVAC Air Adjustment Control Motor - GPD 1638200108

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 GPD

Global Parts Distributors, LLC (gpd) started in 1974 as a five-bay automotive A/C installation and repair shop in Macon, Georgia. What began as a hands-on service operation has grown into a leading national distributor of aftermarket automotive and heavy-duty A/C components.

Today, gpd delivers one of the most comprehensive product portfolios in the automotive aftermarket—spanning HVAC, heat exchange, turbocharger, and engine management systems. With strategically located warehouses across the United States, we ensure fast, reliable service to customers nationwide. What GPD Offers

HVAC Solutions

• Coverage across automotive, heavy-duty, off-road, and agricultural applications, including:
• Compressors, condensers, accumulators, driers, expansion devices, blower motors, evaporators, hoses, fittings, switches, relays, cabin air filters, control components, tools, chemicals, and more.

Complete A/C System Kits — Do It Right the First Time

• Compressor Kits: Compressor, accumulator/drier/desiccant, expansion device, rapid seal kit
• Compressor Kits+: Everything in Compressor Kits plus condenser
• System Service Kits: Core service components compatible with OEM or aftermarket systems
• Blower Motor Kits: Blower motor, resistor, and pigtail

Heat Exchange Products

• Radiators, cooling fan assemblies, fan clutches, coolant reservoirs, heater cores, thermostats, oil coolers, EV cooling components, and more.

Air & Fuel Delivery

• Turbochargers, intercoolers, oil lines, throttle bodies, active grille shutters, and fuel sensors.

Engine Management Sensors

• A full range of sensors covering critical systems including ABS, temperature, pressure, emissions (DEF, DPF, NOx), airflow, turbo performance, transmission, and more.