My previous 2009 Mk 7 had Bluetooth and I could never get it to work properly. I could not answer calls other than by pressing the phone button (which defeated the object of hands-free) and like you, i had to speak out the whole telephone number to make calls making it pretty useless. Everyone confirmed it was set up correctly and that my phone was compatible. My current Mk 7 doesn't have Bluetooth and I don't miss it. I am thinking of getting an aftermarket system installed.
I had one of the old hard-wired hands free installed in my last company car and it worked perfectly.
Not quite the same thing but the topic heading fits - all of the the locking wheel nuts on both of my Mk7's rusted quite badly. I have cleaned mine up now and applied a bit of petroleum jelly. Just a tip for anyone that it hasn't happened to yet. They look pretty awful and it ought not to happen in my opinion.