GLB Class (X247) Produced 2020 to Present

2023 GLB35 AMG rear AC not cooling well

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Old Sep 8, 2025 | 10:15 AM
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GLB35 AMG
Question 2023 GLB35 AMG rear AC not cooling well

The rear AC in my 2023 GLB35 AMG simply does not cool well. It does indeed appear that the amount of air flow from those tiny little vents in the center console in the rear doesn't provide enough air flow to the rear. Combine this with the AMG fabric type black and red seats and it get downright brutal heat wise during a hot day. In doing research I have read suggestions from folks to disable the ECO engine cutoff to keep power to the compressor static but does anyone else have the same issue with a GLB? I read where there are supposed to be "rear under seat climate control ducts" however when I have the car on I don't feel any air flow from under the seat and a minimal amount coming from those two rear vents. I checked the Mercedes App and there are no updates. Any suggestions would be greatly appreciated and yes for now I have resorted to installing some usb powered fans for the rear passengers.
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