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Mercedes Benz
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1991
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190E 2.3 (201.028) L4-2.3L (102.985)
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Repair and Diagnosis
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Heating and Air Conditioning
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Temperature Fluctuates
Temperature Fluctuates
SYMPTOM DESCRIPTION:
The air outlet temperature slowly fluctuate upward and downward.
CAUSE/REMEDY:
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INTERIOR TEMPERATURE SENSOR VENTILATION NOT WORKING. Check the operation of the aspirator blower.
Testing and Inspection