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Service bulletin LI33-20-P054920

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 id10053823
Published by NHTSA2013-11-26
Manufacturer's numberLI33-20-P054920
Manufacturer's date2012-10-16
NHTSA componentSUSPENSION:FRONT:WHEEL BEARING

NHTSA's summary

XENTRY (MERCEDES): ON SOME VEHICLES, THE FRONT AXLE HAS CREAKING OR CRACKING NOISES IN AREA OF WHEEL BEARINGS WHENEVER MANEUVERING OR TURNING CORNERS. MODELS 166, 231 (ML350, 550, 63, GL350, 450, 550, 63, SL550, 63, 65). NO YEARS. *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

Suspension, Wheel bearing

Vehicles listed
MERCEDES-BENZ AMG ML632013
MERCEDES-BENZ GL3502013
MERCEDES-BENZ GL4502013
MERCEDES-BENZ GL5502013
MERCEDES-BENZ GL632013
MERCEDES-BENZ ML3502013
MERCEDES-BENZ ML5502013
MERCEDES-BENZ SL5502013
MERCEDES-BENZ SL632013
MERCEDES-BENZ SL652013

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