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Heat always blows out of the passenger air vent

1014 Views 2 Replies 3 Participants Last post by  rudedude
I have a 96 c280 and heat always blows out of the passenger dash vent even if I have the AC on full blast. Heat also always blows from the bottom of passenger seat flowing into the back seat. I heard that the duo valve could be the problem. Any extra info or advice would be very helpful before I try to fix the problem myself
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I did an instructional on the dual valve a while back here in the 202 forum.
With pics and everything. Do a search. Type in "dual valve repair" and you will see my thread...
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