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Service bulletin PB 54-21/191

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 id10025443
Published by NHTSA2008-08-08
Manufacturer's numberPB 54-21/191
Manufacturer's date2008-02-14
NHTSA componentEXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT; FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM

NHTSA's summary

FUEL GAUGE READS EMPTY, TURN SIGNAL LAMPS PULSE QUICKER, CENTRAL LOCKING INOPERATIVE USING KEY, NO COMMUNICATION WITH REAR SAM. *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

Fuel system, Lighting, Turn signals

Vehicles listed
MERCEDES BENZ C3002008
MERCEDES BENZ C3502005 to 2008

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