A/C temperature on the driver's side not blowing cold air?

2007 MERCEDES BENZ GL450
310,700 MILES • 4.6L • V8 • 4WD • AUTOMATIC
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BIGTEX64
The driver side blows partially cool air while the passenger side blows frigid cold air. Vehicle has a dual control air system. New condenser was installed due to multiple oil spots/leaks. The temperature control unit was replaced because the left temperature switch was not working properly. Still blowing cool/warm on the driver side frontal vents. Suspect the HVAC Heater Blend Door Actuator, but don’t know where it’s located, or what f there is two on the driver side.
Question: How many blend doors are on the driver's side and what are their locations. Do you have a diagram?
Mar 23, 2025 at 7:47 PM
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STRAILER
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
Yes, there is a left side air blender flap actuator that sounds like it went out, here is the location of the part that needs to be changed. Check out the images (below). Let me know if you need more help :)
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Mar 25, 2025 at 2:12 PM
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