1999 Mercedes Benz ML430 heat coming through vents

1999 MERCEDES BENZ ML430
129,000 MILES • 4WD • AUTOMATIC
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99MERCEDES
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When driving i can feel heat coming through the vents eventhough the heater is not on and the dial is on cool . I just had a transmission replaced not sure if this is why thi maybe happening now. It never did this before
Jun 12, 2015 at 11:56 AM
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STRAILER
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Hello 99mercedes,

It sounds like they may have bumped a vacuum line off or blown a fuse somehow can you check this and let me know what happens?

Best, Ken
Jun 19, 2015 at 12:02 PM