New recall for '16 and '17's
 

There is a recall on our '16 for steering gear bolts. It impacts almost 400,000 Mercedes-Benz vehicles amongst 11 models of 2012-2017 model years. Apparently aluminum bolts can corrode and fail if exposed to salt. Dealer will replace bolts with steel ones, apply a liberal amount of wax, and replace power steering rack if necessary.

My 2017 GLC300 door panel switch to the rear hatchdoor does not work at all. Any help is appreciated.