hot engine air >>need help<<
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Joined: Apr 2006
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hot engine air >>need help<<
ok my a/c does not work the blower fan is bad and its a mess to take out and replace so i decided i wouldnt worry about it now, but im getting really hot air coming from the engine somehow my friend said there is some kind of vaccum that is in the engine bay that sucks in air from the engine, i just need a way to shut it off or somehow stop the air from comming into the car even with the vents closed it still comes out the defrost. please help thanx!!
Member
Joined: Mar 2006
Posts: 114
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From: Washington, the State
1993 300CE Sportline
close the air recirculation switch
close the air recirculation switch, that will prevent ANY air coming into the cabin. Soon the interior will become stale
and the windows will fog , drop a window down to allow outside air in.
and the windows will fog , drop a window down to allow outside air in.
MBWorld Fanatic!
Joined: Jun 2006
Posts: 4,968
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1990 300ce 24v I6
My AC crapped out a long time ago as well. Just leave the air condition to 0 and turn off the recirculation thing like kwb said. I always drive with all 4 down and sunroof open so it doesnt bother me much 
Super Member
Joined: Oct 2004
Posts: 870
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From: marlboro, nj
Mercedes benz 1991 300ce(RIP), now an 89 300ce
same here. actually apparently my blower motor was put in backwards at soem point, i had it fixed yesterday. now im getting air blown into the cabin, and i just found out i need to recharge the a/c. it never end....
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ok here is the deal there is no power going to the climate controls because its on the same fuse as the blower fan and the fan always blows the circuit so no matter what i push on the controls nothing happens but is there a way i can stop air coming in from the engine anyone know?
Member
Joined: Mar 2006
Posts: 114
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From: Washington, the State
1993 300CE Sportline
un-hook fan
what if you un-hook the wire that powers the fan, replace the fuse and close the recirculate switch? If the fan is blowing the fuse un-hooking it will definitely prove that to be true AND you should be able to close off the hot air coming in from the engine comparment. In theory. Or am I just crazy?
kurt
kurt
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ok that is an option i could try, but i really just wanted to find exactly where in the engine bay the air comes into the a/c unit so i can find a way to block this off, so does anyone know really where this so called vaccum is that takes in the air from the engine?? please help!!
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Super Member
Joined: Jul 2005
Posts: 717
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From: Manassas, VA, USA
2011 VW cc, 2004 ML350
You know, replacing the fan really isn't that bad of a job. Heck your proposed solutions sound like a lot more work to me then just replacing the fan. I did mine about a month ago. Cost $165, took an hour and a half.
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