2012 SLK 350 smartTOP Installation Addendum
This is an addendum to the installation guide for the smartTOP STHFMZ2 Control Module which can be found at: http://www.mods4cars.com/sms/db/smarttop/ext/support/manuals/mercedes/STHFMZ2/install/en.php.
here's link to the post about removing the rear speakers first: http://www.slkworld.com/slk-r172-general-discussion/22701-installing-r172-version-smarttop-module-4.html#post288005
No need to disconnect the speakers!See post #189 for more info
The smartTOP guide is quite good but there are some gray areas that I hope to clarify with this narrative.
The steps listed below refer to the steps in the original installation guide and any steps that are skipped are where the original guide works just fine as is.
The first thing to do is hook the module up to a computer and check for updates, when I did my installation there was an update for the module from a just couple of days earlier to version 1.11.
For any photos in the guide that showed any wiring, I printed out as full page photographs, these turned out to be quite handy.
Note that the actual space where the roof control module lives is pretty small and there is not much room to work in.
The roof control wiring connector that you have to swap wires on is quite small, which the photos in the guide don’t indicate. Make sure you have plenty of light where you do the installation so you can clearly see the connectors, slot/pin numbers, and wire colors.
The Torx screws holding the metal plate to the bulkhead are fairly large and a 3/8” ratchet socket wrench is recommended. I used a 1/4” ratchet wrench which worked but the larger size wrench would have been better.
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