Quote:
Originally Posted by Craig
In general, the center vents are only supposed to blow cold air. When you are in "heat" mode the center vents will be isolated. Some people have bypassed that function so the center vents are always open.
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Yes, I am one of those. The center vents in my W123 blow the same type of air the side vents blow out. Cold when cold on the side, hot when hot on the side. It has worked this way since the day I removed the center vent actuator or pod and routed the vacuum lines to each other (rather than to a 3-way connector that goes to the actuator/pod).
Removal of the center vent was necessary because the spring in the actuator kept the center vent flap closed (default). Removing the actuator/pod + spring allowed me to set the center vent flap to open.