Sorry, the NHTSA has not posted this TSB document yet.
You can still get the detailed info from Mercedes-Benz for this TSB. Call your local Mercedes-Benz dealer's service department & ask for a copy of TSB# 2015010004.
MERCEDES BENZ: MODEL 242(B-CLASS) 2014:
BULLETIN INFORMATION REGARDING POWERTRAIN CONTROL MODULE SOFTWARE UPDATE MAY NOT MEET CURRENT PRODUCTION CONFIGURATION. *LJ