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My 2001 mercedes S320 blows hot air through the side vents when I turn on the aircon. - Resetting gives me error code 1418. Can anyone HELP?

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It could be a failure in the solenoid valve of the heating system that is leaking hot water in the aircon system.

Posted on May 10, 2017

Testimonial: "It's maybe the duovalve, right? - and would THAT give me an error code :1418 ?"

  • Ricardo Negron
    Ricardo Negron May 10, 2017

    the 1418 indicate an split air #1 circuit malfunction, any leak or pass of hot water from the heating system in the valve may produce this circuit malfunction. you may try to manually block the hot water hose supply to the circuit and then test if your AC will operate properly.

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As per your problem mentioned. There are few solved help links to troubleshoot these problems. Go through the list and Click the link below:----


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http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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