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-2009120003.
MERCEDES BENZ: CHECK COOLANT PROTECTION LEVEL OF THE HYBRID POWER ELECTRONICS MODULE AND HIGH VOLTAGE BATTERY, CORRECT IF NECESSARY. MODEL AND MY 164 2010. *PE