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#1
02-02-2000, 11:06 AM
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I have an 1978 450SEL. The heater was working fine and just quit. The blower motor blows but only cool air comes out. Is there some procedure I can try to get the system working again?
Thanks 
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#2
02-02-2000, 09:59 PM
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I can't remember if this was the old servo type or the mono-valve. Either way, the servo can mess up or the mono valve insert will have to be replaced.
------------------ Benzmac: 1981 280GE SWB 1987 16V ASE CERTIFIED MASTER AUTO TECHNICIAN SERVICE MANAGER FOR 14 BAY FACILITY MERCEDES SPECIALIST 8 YRS PARTNER IN MERCEDESSHOP.COM
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