Hi, today I saw that there is some dust all behind the front glass of my Beosund 5 and micro scratches on front of the glass :-( Is the dust problem covered by the warranty? I don't want to accept dust on a unit like this. Because of the micro scratches I'm a little bit unsure: I can imagine that they simply tell me: Wrong cleaning! And then they are done with it. Any help, suggestions? Thank you!

Dust under the glass has been an issue on early BS5's - there is a service solution to solve the problem (normally covered by warranty) 
Scratches are, as you assume, in most cases result of cleaning (normally not covered by warranty) 
But you should safe at least costs of labour when exchaging the glass together with the warranty covered "Dust Issue"