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#1
07-14-2009, 07:45 PM
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HVAC Pod functionality...
Couldn't find any clear reference to this one... Sort of a beginner question, I know...
W123 '82 300TD is the car in question.... What does the "Main" air flap do exactly? What happens when it's opened? And closed? Next; the "fresh air/cabin air" flap utilizes cabin air when open right? So what's the advantage to having it closed? The reason I ask is because I'm considering rigging it permanently open (recirc). Is there any reason I shouldn't? Thus far I've determined that my defrost flap is always open (obvious, judging by the condensation that's always on the windshield). Verified this one with a mityvac. The "foot" flap is a-ok! The center flap was all whacy, so I rigged it permanently open and plugged the vacuum line. I did the work on the center flap through the instrument cluster hole... quite tricky but it's done all the same.
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'90 300SE --- 173k miles --- (Odometer just stopped working!) '85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10 '82 300TDT --- 236,xxx miles --- (My first one) Sold July '09 
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