All Forums » Mercedes M Class » DVD NAV install question.
Hi bzl763, I believe you need to have the dealership version code your nav system. Most of the people on the forum say it's free, but you may have to pay some money for this procedure. This is need to that your nav system is registered into the car computer.
I am also interested in setting up a nav system for my ML 350. I want to know where you got the nav module and instructions on how to install it yourself.
li81jam
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