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  #1  
Old 02-19-2006, 11:47 PM
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300SDL Rear Vent blows only cold air

Re: 1987 MB 300SDL, 206K miles.

The cars's climate control works well except for the vent between the front seats that blows into the rear seat area. It blows only cold air! The one back and under the arm rest.

The floor vents blow hot air to the rear foot wells.

Anyone have a GFI on how to diaganose and fix this?

Thanks, NRK


Last edited by nrkmann; 02-19-2006 at 11:49 PM. Reason: gramatical errors
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  #2  
Old 02-20-2006, 04:17 AM
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If you have the ACC system (which you probably do being in the US) it is functioning completely normally, no heat comes out of the rear center vent in cars with the ACC.
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Old 02-20-2006, 04:30 AM
carson356
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Quote:
Originally Posted by 420 SE
If you have the ACC system (which you probably do being in the US) it is functioning completely normally, no heat comes out of the rear center vent in cars with the ACC.

i agree, heat only from the floor vents,
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Old 02-20-2006, 05:16 PM
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First, thanks for the replies.

Second, OK, no hot air from the center vent. Should the center vent blow all the time? It is 20 degrees outside the heat is on and the center vent is blowing cold. How is it turned off?

Regards, NRK
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  #5  
Old 02-20-2006, 05:19 PM
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There is a slide control directly underneath the vent
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Old 02-20-2006, 05:28 PM
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Yep thats normal, turn it off. The slide control above it will shut it off.

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