For my BMW's I can enter any PIN #, however for my Mercedes's you need to enter the numerical equivalent of "MBUSA". My point being, every car manufacturer is different (who knows why). I can confirm that on MY2008 thru MY2010 you can enter any pin combination that meets the criteria below. I will tell you exactly what I have used, and my methods worked on both MY's. I cannot be sure about this, but I am assuming that the instructions below will work for MY2006 thru MY2010.I see a few of you got used Cars and programmed your phone. This is for my wife's 2005 E60 but I cannot find the PIN# to Sync my Iphone. An old thread showed the unit in the car to find the Pin called the PK. Mine shows a sticker but and says PK but there is no #!! There is an esn and other numbers. Which one is used for the PIN#? How many digits is it supposed to be? Thx!
The PIN # must be FOUR/4 (XXXX) DIGITS
For the PIN # use: 0000
If that does not work -
Try it again, this time using PIN #: 1234
** Be sure to enter identical PIN#'s on both sides. If you enter 0000 for the iDrive, enter 0000 for your phone.
If you are still having trouble pairing your phone to your BMW's iDrive then take note of the method you are using. If you are searching/beginning the bluetooth pairing process on your iPhone and the result is unsuccessful, then try it backwards and it should work. What I mean by backwards is search/begin the pairing process on your iDrive (instead of your iPhone). I find this a great solution whenever I have pairing issues on either BMW or Mercedes (usually never have BT Pairing issues with BMW, it's always Mercedes).