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Adjust rear A/C airflow

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Old Jul 6, 2025 | 05:25 PM
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Adjust rear A/C airflow

Anyone know how to adjust the rear passenger A/C airflow that does not have the rear A/C control panel?
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Old Jul 7, 2025 | 08:11 AM
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There are adjusters on the back of the B pillars as well as a retractable pin knob in the center vent. Is this what you mean?

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Old Jul 7, 2025 | 09:13 AM
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The fan speed adjustment.
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Old Jul 7, 2025 | 10:01 AM
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On cars without the rear climate controls, there is only one fan in the passenger's side dash. You can only adjust the airflow as indicated above with the controls at the vents.

The cars with rear climate controls actually have a 2nd blower in the center console.
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Old Jul 7, 2025 | 12:29 PM
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Thanks for the replies....not blowing much air back there. All vents are in the open position.
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Old Jul 7, 2025 | 12:40 PM
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My previous W221 S550 had the rear climate control and people would comment on how nice it was 'back there'. My current W222 does not have it and I agree it does not get as much air. You also might consider changing your cabin air filters if you've not done so recently, a clean filter can dramatically increase airflow.
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Old Jul 7, 2025 | 12:57 PM
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To increase airflow to rear you can partially close the front vents.
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Old Jul 7, 2025 | 03:28 PM
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From: Wash. D.C.
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Originally Posted by dlafever
My previous W221 S550 had the rear climate control and people would comment on how nice it was 'back there'. My current W222 does not have it and I agree it does not get as much air. You also might consider changing your cabin air filters if you've not done so recently, a clean filter can dramatically increase airflow.
Believe they were changed at last service interval.....will check. Thanks
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Old Jul 7, 2025 | 03:30 PM
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From: Wash. D.C.
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Originally Posted by VII
To increase airflow to rear you can partially close the front vents.
Will give it a try...Thanks
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Old Jul 8, 2025 | 01:05 AM
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Originally Posted by xabo
Thanks for the replies....not blowing much air back there. All vents are in the open position.
Check / Replace your cabin air filter.
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Old Jul 17, 2025 | 01:57 PM
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Checked filters and they are clean. Any other suggestions?
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