I believe its the last 6 digits of the vin not 7.More info
If you press and hold the odo reset button in the lower left of the instrument cluster for 10 seconds, the car will display a menu where in bmw will allow cbs reset. It is missing, however, maybe it only becomes an option when there is something that needs to be reset? ... for the locked menus, the code to enter is the sum of the last 7 digits of your vin number. Press the odo reset button to advance the number and hold to enter it. There are some useful options in this menu including putting the car into dyno mode. The lack of cbs reset is annoying and i hope it can be found here when there is a warning thrown.
1st of the Seven is a W for me, so has to be the last 6.I believe its the last 6 digits of the vin not 7.
Um i probably wouldnt recommend. It goes away once all the oil is flowing again.I guess it may be possible to disconnect the injectors to allow turning over the engine to avoid the lifter tick..?