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  #1  
Old 06-13-2006, 10:25 AM
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126 Rear A/C Vent Inop

1985 380SE - this is the rear vent behind the center console (under the armrest) that blows at the rear seat passengers. I can't get any air to blow out of mine. I think it would really help circulate A/C through the passenger compartment if it was working.

I've done a search but the info is vague. It appears the vent lever *might* control some sort of A/C flap behind the radio that controls airflow to the vent. How do I trace this cable, and where is the flap that it controls? Can I just wedge the flap open so the rear passengers get A/C?

Also, some posts seem to indicate that the vent only blows heated air. Other posts say fresh (vent) air only. I need A/C air to blow out of there. Is this possible?

TIA!!!
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  #2  
Old 06-13-2006, 03:05 PM
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Heated air comes from under the front seats. You should only get cool air or outside air from the center vent.

Are you sure the lever controls a cable? Maybe it controls a flap right behind the vent.

Sixto
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  #3  
Old 06-13-2006, 03:27 PM
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Lever controls a cable that runs up to a flap right below the radio. Remove ashray, shifter wood, coin tray and you can see it. Cable typically becomes unclipped at this front flap.
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  #4  
Old 06-13-2006, 04:19 PM
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Thanks - I will check it out tomorrow after work. Do you know if the flap provides "vent" air or is it "A/C" air?
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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280
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  #5  
Old 06-13-2006, 06:01 PM
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If the compressor is on it provides chilled air. If not, it provides outside air. IIRC it will not provide heated air. Mark
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  #6  
Old 06-13-2006, 06:20 PM
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The duct that leads to the rear vent draws air downstream of the evaporator but upstream of the heater core.

Sixto
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