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Service bulletin SB-2009120003

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10033075
Published by NHTSA2010-06-30
Manufacturer's numberSB-2009120003
Manufacturer's date2009-12-01
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

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

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Engine, 12-volt battery, Cooling system

Vehicles listed
MERCEDES BENZ ML3202009
MERCEDES BENZ ML3502009
MERCEDES BENZ ML5002009
MERCEDES BENZ ML5502009
MERCEDES BENZ ML632009

Listing a model year does not mean every vehicle of it is concerned: the document says which.