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#1
10-27-2005, 12:42 PM
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87 560SL No heat
I took the suggestion of checking the monovalve. It looked like the rubber was in good shape, and I checked that it was getting power (13 Volts +-) . It is. Since it is not expensive to use a repair kit, I ordered one.
But I'm still not sure that this is the problem. Can anyone suggest any other possibility that I should be checking. Steve Metz 
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#2
10-27-2005, 09:35 PM
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the amps like to go bad.. Do you at least have heat on full defrost?
Jonathan
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Blue Ridge Mercedes Jonathan Hodgman http://www.blueridgemb.com/ Enthusiast Service, Restoration & Tuning. Follow Us on Facebook! Located in the Atlanta area Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines. Mercedes Repair Atlanta
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#3
10-28-2005, 08:18 AM
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IF you un-plug the heater valve(electrical connector) you should get FULL heat. IF not then either the heater valve or heater core is plugged up!
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#4
10-28-2005, 08:22 AM
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One other possibility for no water flow thru the heater core... Is the aux. water pump functioning? You can easily check by it. It is located in the same vicinity as the heater valve. While there, check to see it is getting supply voltage to rule out power problems, etc...
Good Luck!
__________________
RM Smith 1988 560SL "Where is it again that we are going, and why are we in this handbasket"?
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