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  #1  
Old 01-03-2002, 10:23 PM
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Driver's side heat has cool

Spent some time using search but didnt find this... '92 300E with single temp climate control, With Engine temp @80 C, drivers floor vent has cool air mixed in when on heat. Passenger's side and both upper side vents feel good and warm. Enabling the recirc feature seems to help some. Recent very cold days make this issue much more noticeable. What should I do first to stop the cool air on the drivers side??
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'92 300E & '80 240D
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  #2  
Old 01-03-2002, 10:28 PM
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Some of the vacuum operated actuators are not working properly. Could be the operators or the vaccuum valves.
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  #3  
Old 01-03-2002, 10:50 PM
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Question

Hopefully I wont sound to uninformed but where and what are those ? Are these above average owner replaceable parts?
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  #4  
Old 01-04-2002, 10:23 AM
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Electrons can do anything
 
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Location: Houston, Texas
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They are located in and around the big black box containing the heater and air conditioning radiators which is right behind the center console. They direct the air to the appropriate vent depending on the mode. All the hose ducts eminate from there. Some are very difficult to get access to, others are not. They can be checked with a vacuum pump/tester relatively easily. But good documentation and understanding of the climate control system is a must.
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I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k
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