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Old 01-16-2001, 06:51 PM
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MBenzNL MBenzNL is offline
Join Date: Jan 2001
Location: the Netherlands
Posts: 1,417
Some of the malfunctioning problems of the climate control can be reset by the dealer!!
I had mine reset recently after my climate control (C250D)switched from Celsius to Fahrenheit (and back) several times and stopped opening any ventilation ducts besides the windshield ones. I couldn't regulate the airflow at all and the only thing I had to do was resetting the system.

Otherwise it can be a bad temp.sensor inside the car which detects a lower temperature as is and therefore activates the full power of the heating system.

1990 300SL-24
1993 C250D
with a minor 600+k kilometer
(the Netherlands)
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