Well, i am afraid its bad news, sorry.
It sounds like the main bearing has failed, or the fan has become loose, either will make this machine make a rally bad noise.
This would mean replacing the motor as a complete assembly, as this is how it comes from Miele.
The really bad news is that the part alone is over £150 or €175
Its also not the easiest job to replace it yourself.
Sorry it wasn't good news for you
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