Is it an OE BMW hitch you are installing?

When I bought my X5 hitch at the dealer years ago, they told me that the instructions had been re-released/updated, and they went next door to the service counter and printed out the service bulletin for me. When I bought my X3 hitch they checked the service bulletins and told me that the print out I had in hand was the most recent version.

I would expect your dealer to be able to print out the technical service bulletin for the OE hitch installation when you buy the hitch kit.

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2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue