just to let you know i had the same problem when i purchased my Miele W 3444 12 months ago.
I was told that this machine had a delay start but when i had it installed i found this to be untrue.
but i have got round that problem, I set and start the machine and then switch the plug in timer off and when it clicks back on in the early hours of the morning it just compleats the programe.
off the record i was told to do this by miele tec support and it does work and i think it should do with most machines of miele.
let me know if it works on yours.