Front defroster issue

KY325iMan · 12-11-2012, 10:54 AM

Ok...So I finally got where my ac/heat heat is working ok, (after changing outside air temp sensor) but now whenever I turn on the main/front defroster it will only blow warm air, no matter what the temp is set to. Ideas? Thanks as always.....

scarede46er · 12-11-2012, 10:55 AM

Just the front defroster vent blows warm air or all the vents blow warm air? If the former, that is by design.

KY325iMan · 12-11-2012, 11:13 AM

Quote:

Originally Posted by scarede46er

Just the front defroster vent blows warm air or all the vents blow warm air? If the former, that is by design.

It seems it's just the defroster vent....I can't imagine why a front defroster would always blow just warm air. It makes it really uncomfortable in the cabin if it's warm/hot outside.

Redryan98 · 12-12-2012, 09:19 AM

front defroster/defogger vent should close when your not using it. That vent should only open when you actually hit the defogger button on your console.

Under normal use when cooling that should be closed and only your front vents (facing out towards you) would be open. When heating (not defogging) the floor vents should always be on.

scarede46er · 12-12-2012, 09:30 AM

Well, you can turn the switch off. Or turn your AC on if it is hot outside.

KY325iMan · 12-12-2012, 12:13 PM

Quote:

Originally Posted by Redryan98

front defroster/defogger vent should close when your not using it. That vent should only open when you actually hit the defogger button on your console.

Under normal use when cooling that should be closed and only your front vents (facing out towards you) would be open. When heating (not defogging) the floor vents should always be on.

Yeah, the defroster vent is closed when not using it..(all the vents open/close properly) When I turn on the defroster/fogger, though, the air it puts out is always really warm, and no matter what I do the temp of the air stays warm. In my crown victoria and every other car I've ever owned, you can adjust the defroster/fogger air temp to more effectively defog the windows, as well as make it more comfortable inside the car. T.hat's why I think something is not working properly.

scarede46er · 12-12-2012, 12:21 PM

Nope it is by design. http://forums.bimmerforums.com/forum...d.php?t=597288 look at #42

12-11-2012, 10:54 AM	#1
KY325iMan Registered User Join Date: Dec 2011 Location: Louisville, KY Posts: 38 My Ride: 2003 325i View My Garage	Front defroster issue Ok...So I finally got where my ac/heat heat is working ok, (after changing outside air temp sensor) but now whenever I turn on the main/front defroster it will only blow warm air, no matter what the temp is set to. Ideas? Thanks as always.....

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12-11-2012, 10:55 AM	#2
scarede46er Registered User Join Date: Aug 2012 Location: Clemson, SC Posts: 739 My Ride: 2001 BMW 325i ZSP View My Garage	Just the front defroster vent blows warm air or all the vents blow warm air? If the former, that is by design.

12-12-2012, 09:19 AM	#4
Redryan98 Registered User Join Date: Jun 2010 Location: CT Posts: 236 My Ride: 330Ci View My Garage	front defroster/defogger vent should close when your not using it. That vent should only open when you actually hit the defogger button on your console. Under normal use when cooling that should be closed and only your front vents (facing out towards you) would be open. When heating (not defogging) the floor vents should always be on.

12-12-2012, 09:30 AM	#5
scarede46er Registered User Join Date: Aug 2012 Location: Clemson, SC Posts: 739 My Ride: 2001 BMW 325i ZSP View My Garage	Well, you can turn the switch off. Or turn your AC on if it is hot outside.

12-12-2012, 12:21 PM	#7
scarede46er Registered User Join Date: Aug 2012 Location: Clemson, SC Posts: 739 My Ride: 2001 BMW 325i ZSP View My Garage	Nope it is by design. http://forums.bimmerforums.com/forum...d.php?t=597288 look at #42