I'm both pleased and disappointed.
I love reverse engineering efforts, and like to partake myself from time to time, so I'm very happy to see this; but, for a fraction of an infra-red-wave period I thought Miele had decided to be cool and open source some diagnostic tools for everyone to benefit.
If I'm not mistaken, they were the first (and only?) to open source 3d models for vacuum cleaner accessories.
I know HN loves Miele, but they are very Apple like when it comes to repair — they don’t make their parts available to the public and since a few years neither to independent repair shops.
In contrast I had a great experience repairing a Smeg stove and buying all the necessary parts directly from them, so it’s not like it’s impossible.