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Old 01-28-2008, 07:56 PM
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pawoSD pawoSD is offline
Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,438
If the pump did nothing when you provided it direct power then it is dead. Both my 300SD and 300D had dead pumps. Replaced it on the SD to improve heat in the car, but on the 300D I get plenty of heat even with it unplugged. Leave it unplugged if it is dead, it can fry the CCU board as there is no fuse. (CCU board becomes fuse...not good)

I need to prop the floor vents open on our 300D too.....all the heat is at the defrost and two side vents.....cold feet + charred face!
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