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airco started to make a 'sissing'sound


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hi all,

My wifes cayenne TT (2008) has developed a new sound. When I turn on the airco there is quite a loud sissin sound coming from under the dashboard. It sounds a bit like the is a tire loosin air. As sson as I turn the airco to econ then it is gone.

When I turn it on again the noice is back. Noice also sound a bit metallic like. A bit like something metallic is turning against something metallic.

Just wondering whether people have experienced something simular.

Regards,

Frank

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Went by the dealer today. They immediately said it was just a matter of an airco refill or a blown airco valve. He suspected the first. Asked whether this was covered under warranty, but they said it was normal 'wear'. I told him that my definition of normal wear does not cover an airco refill within 4-5 years. If so, why isn't the mentioned in the service/maintenance manual?

To be continued.

frank

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