While you wait for answers, we may have found some information which could help you.
Click here for Take Apart Vacuum CleanerMiele S718 motor fault?
Fault finding and repair on a Miele S5211?
Miele vacuum cleaner- c3 powerline?
Miele s571 Hoover not starting. ?
miele parkett 5000 cleaner, whie removing dustbag, part came off inside?
How to remove the plastic coverings by the power switch on Miele s7000 upri?