I just found out that when I open the tailgate using the keyfob, it doesn't lock back when I close it. It doesn't matter whether the doors were locked using the keyfob or manual lock button. Is it supposed to be this way? I'll check to see if the security system still stays armed after opening the tailgate. In my other MB car, the trunk will lock back and the security system reactivated.
The trunk should lock back or at least that's how mine works. Check if your trunk lock is broken. Otherwise they changed it on later model years, doesn't make sense though.
You mean that after you opened the trunk then closed it you did nothing and waited for it to lock itself? Then when nothing happened you pressed lock on your remote and it locked?
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