I am not sure how true this is but worth asking the question to your dealer! This is what i found out all diesels have all the parts as standard but in europe you have to buy the key to make the heater work which i can take a picture of if you like but i was told by BMW UK that US cars have to be re programed with the bmw computer and this will make them work how true this is dont know but this is what Iwas told when I tried to get mine activated for free because the salesman told me my car would have this feature as standard in the end the gave me the extra parts for free :-) You can by the kit from webasto which is not that expensive if you have the heater already there which is in the engine bay on the right hand side at the back if you are standing at the front of the car again I can take pictures for you