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1998 ML 320 No heat

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#1

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11-08-2007, 09:47 AM

Alseim

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1998 ML 320 No heat

A firend of mine has a ML 320 that is blowing cold air even though the heater is on. What could be the problem? Thank in advance for your help.

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#2

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11-08-2007, 10:06 AM

mbdoc

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Join Date: Mar 1999

Location: Tucker, Ga USA

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The ML doesn't have a heater valve! Uses a blend air system.

Has a servo-motor on the blend air door to regulate heat.. MOST likely a bad blend air door motor.

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