[playwithonehand]

All BMW 3series cars of the E90, E91, E92 (and probably E93) family have hidden/service menus in the Board Computer (BC)
Although on cars with iDrive, some of this information can be accessed in a more readable format through the hidden iDrive menus

Accessing the menus
To access these hidden menus (or service menus), you have 2 options..

Option 1

Turn ignition on, or start your car
Press and hold the button to reset the daytrip/odometer for 10 seconds


Option 2

Press and hold the button to reset the daytrip/odometer
While keeping this button pressed, insert the keyfob into its slot, and release the button


At this point the BC should display data in a "XX.YY" format. So if the BC displays "01.00", that means Main Menu 01, sub menu 00
To continue to navigate the menus, you need to use again the daytrip/odometer button (hereafter just called 'button')

For more information go to this site.
http://e90.wetpaint.com/page/BC+hidden+menus

Have fun

[suff]

Or you could just go through the iDrive interface:

http://e90.wetpaint.com/page/iDrive+hidden+menus

[toicy4ya]

Am I able to access the engine temperature through these hidden menus?

[E92325i]

Originally Posted by toicy4ya

Am I able to access the engine temperature through these hidden menus?

Yes you can access a digital readout of the coolant temperature. I can't remember the exact menu/submenu number but play around through the menu and you will find it.

I have a feeling its in the number "7" menu but it's only a vague hunch so check it out for yourself.

[bbi]

you know how to check in hidden menu or normal menu to see the % for DPF or for brake pads?