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  #1  
Old 07-22-2004, 05:30 PM
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Join Date: Jul 2004
Location: Northern Ontario
Posts: 3
Angry 1992 MB 300 SE A/C Problems

1992 MB 300 SE A/C Problems


Starts out cool on all vents....
Set on Automatic (Dual System) 75F
after a few miles when engine is at operating temp
driver side dash and foot vent blows HOT AIR ???

HELP



Ralph
have you check the Dual heater valve at driver side behind left side head-lamp unit you may have hot water going to heater core after engine is warm-up or you have vacuum leaks
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Last edited by Ralph-Andree; 07-23-2004 at 01:12 PM.
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  #2  
Old 07-22-2004, 06:38 PM
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Join Date: Feb 2002
Posts: 3,325
do a search on the forum. I hope its not the "Evaporator" that seems to have plagued your body style w140 chassis.
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  #3  
Old 07-22-2004, 07:48 PM
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Join Date: Apr 1999
Location: Walnut,CA,USA
Posts: 554
Ralph
have you check the Dual heater valve at driver side behiend left side head-lamp unit you may heve hot water going to heater core after engine is warm-up or you have vacuum leaks.
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