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Service bulletin LI-91-10P051831

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 id10039253
Published by NHTSA2011-07-13
Manufacturer's numberLI-91-10P051831
Manufacturer's date2011-05-12
NHTSA componentSEATS; SEATS:FRONT ASSEMBLY:HEAD RESTRAINT

NHTSA's summary

MERCEDES-BENZ: THERE IS CRACKING NOISE AT THE FRONT SEATS WHEN OPERATING THE HEIGHT ADJUSTMENT. *RM

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

Seats

Vehicles listed
MERCEDES BENZ S2009 to 2010
MERCEDES BENZ S CLASS2009
MERCEDES BENZ S6002009
MERCEDES BENZ S632009
MERCEDES BENZ S652009
MERCEDES-BENZ S5502010
MERCEDES-BENZ S6002010
MERCEDES-BENZ S632010
MERCEDES-BENZ S652010

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