The pin number apparently is in the boot under the CD changer, I think, I read a thread explaining this in last few days on this forum, under bluetooth or the like.

Anyway check the purchase invoice it will state options chosen if it is 633 or Z6A then you have assist (Telematics) capabilities. If its 644 then you dont.

When your on the main menu screen you should see BMW assist but if its not registered then you cant access it. If you cant see it at all you dont have it. If you do the dealer should of registered this for you when you bought it but you would of signed the agreement form. With option Z6A its free for six months then its 300 quid a year. If bought used within the six months it is transferrable dealer would of told you, maybe.

Those books are pretty much generic when purchasing so it doesnt follow you have it in car even if you have the book.

If dont have your options list ask dealer to enter your VRN into their system your chosen options will come up on the screen.

I hope that makes sense mate if not let me know.