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Old 03-14-2002, 06:59 PM
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JFAZ JFAZ is offline
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Join Date: Mar 2002
Location: Sacramento, CA
Posts: 90
floor vents not functioning/opening, HVAC 86' 300E W124

Hello everybody!

I have an 86' 300E that I purchased nearly six months ago from the original owner. The floor vents fail to open when the correct button is pressed (confirmed by owners manual). I assume they are operated by a vacuum, however I have no idea where to begin my troubleshooting.

Any suggestions or advice would be greatly appreciated.

All other functions of HVAC work great.

05 E55
03 E500
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