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# SB-2010030001.
MERCEDES: SUPPLEMENTAL RESTRAINT SYSTEM (SRS) - UPDATE CONTROL MODULE SOFTWARE. THE FUNCTIONING OF THE SRS IS NOT IMPAIRED. AN UPDATE TO SOFTWARE OF SRS CONTROL MODULE SOFTWARE IS AVAILABLE TO CORRECT THIS CONDITION. *PE UPDATED 4/12/11. *PE