This is often caused by diconnected caused by or recent repair work.
Bmw evap system not ready.
In order for your car to pass the smog check you need to do a drive cycle to get the obc ready.
As a result your vehicle cannot receive a complete emission test at this time.
This makes the car not ready for a smog check.
If all the other monitors are ready then do a couple more cold starts.
So in order to make the status of catalyst monitor ready.
I have noticed a fairly new battery in the car.
If you have recently changed the battery on your bmw or done a major repair for the engine or emission system the on board computer has mostly been reset.
Electrical problems if the computer is losing power when the ignition is turned off blown fuse wiring problem or has an internal computer problem the computers memory is erased and system will be not ready.
Thus the catalyst monitor has not tested the catalytic converter.
It signifies that the requisite drive cycle has not run completely.
The output of the catalyst monitor can be either not ready or ready if the output of the monitor is not ready what does that indicates.
If the evap monitor still has not passed or set a pending or present code then take your vehicle to a shop that employs technicians who are familiar.