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#1
10-15-2006, 03:41 PM
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1993 190e heating problem
I get a little heat when the car is idling but when at highway speed blows cold air. I have trouble shooted everything,water pump,thermostadt,heater valve,and air intake in dome light.All that is left is the potentiometer without taking the dash off. Could this be the solution? Can I access through the speedo.
thanks! 
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#2
10-16-2006, 08:19 AM
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IF you disconnect the heater valve vacuum line does the car get hot inside?
NOTE: the center vent will never get hot!
__________________
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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#3
10-16-2006, 08:45 AM
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No,I dont think the mechanic did that yet. Is there a method to it?
thanks for your help!
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