Hi, I've just come across this thread. Can someone clarify what options are available in the hidden menu? Also, once unlocked, where is the information displayed - is this on the iDrive screen or the instrument cluster? Does the hidden menu 'hide' again once the ignition is switched off? If not how do you return to the normal menu?
Many questions! Thanks in advance.
Estoril Blue M135i F21
"Hate this car? Then you hate driving." - Clarkson, 2012