Bosch TES 70358DE Milk gets warm

Hello and thanks for the recording.
Has anyone ever had the Bosch TES 70358DE fully automatic coffee maker ??
I have the problem that the milk does not get warm with milk coffee or capuccino or warm milk.
Coffee is still very warm.
Someone a solution.
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Bin verzweifelt, meine iq9 300s bricht immer ab wenn der nun Anfangs wild spuckende Milchschäumer bei der Hälfte ist. Hättet ihr Lösungen für mich. Lg Richi
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Here's the problem: After switching on the machine and selecting a drink with milk froth, e.g. cappuccino, proper milk froth comes only after the 3rd purchase. Before, only cloudy hot water comes instead of milk foam. There's obviously no milk being drawn. I cleaned the milk system.
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