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Service bulletin TB-46-20-61

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 id10025648
Published by NHTSA2008-08-27
Manufacturer's numberTB-46-20-61
Manufacturer's date2008-04-22
NHTSA componentSTEERING

NHTSA's summary

RATTLING/THUMPING NOISE ON ROUGH ROADS AND/OR KNOCKING NOISE WHEN MOVING STEERING IN BOTH DIRECTIONS ON ALL MODEL 164 AND 251 VEHICLES. MODEL YEARS UNKNOWN. *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

Steering

Vehicles listed
MERCEDES BENZ GL2006 to 2008
MERCEDES BENZ GL3202005 to 2006
MERCEDES BENZ GL3202008
MERCEDES BENZ GL4502005 to 2008
MERCEDES BENZ GL5502005 to 2006
MERCEDES BENZ GL5502008
MERCEDES BENZ ML2006 to 2008
MERCEDES BENZ ML3201998 to 2003
MERCEDES BENZ ML3202005 to 2008
MERCEDES BENZ ML3502003 to 2008
MERCEDES BENZ ML4301999 to 2001
MERCEDES BENZ ML5002002 to 2008
MERCEDES BENZ ML552001 to 2002
MERCEDES BENZ ML5502005 to 2006
MERCEDES BENZ ML5502008
MERCEDES BENZ ML632005 to 2008
MERCEDES BENZ R CLASS2006
MERCEDES BENZ R-CLASS2007
MERCEDES BENZ R2512007
MERCEDES BENZ R3202005 to 2006
MERCEDES BENZ R3202008
MERCEDES BENZ R5002005 to 2008
MERCEDES BENZ R632005 to 2008
MERCEDES-BENZ R3502005 to 2008

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

Other bulletins for the same vehicles and component
LI-46-10P0472312013-04-30. Service bulletin. XENTRY (MERCEDES): DUE TO EXCESSIVE RESISTANCE IN UNIVERSAL JOINT OF STEERING COUPLING, EVERY 90 DEGREES, PRESSURE POINT IS FELT AND AN INCREASE FORCE, ON STEERING WHEEL, WOULD OVER COME UNEVEN STEERING FORCES. MODEL 164, 251. NO MODEL YEARS LISTED. *PE
SB-P-0472312009-12-24. Service bulletin. MERCEDES: UNEVEN STEERING FORCES WHEN STEERING FROM LOCK TO LOCK. INCREASED STEERING FORCES IN CERTAIN POSITIONS. APPROXIMATELY EVERY 90 DEGREES A PRESSURE POINT CAN BE FELT WHICH MUST BE OVERCOME BY INCREASED FORCE ON THE STEERING WHEEL. UNIVERSAL JOINT IN STEERING COUPLING, (STEER COUPLING) HAS EXCESSIVE RESISTANCE. REPLACE STEERING COUPLING (STEER COUPLING). NO MODEL YEARS LISTED. *PE
4630412006-05-17. Service bulletin. FLOW NOISES FROM AREA OF POWER STEERING PUMP AND/OR FOAMING OF POWER STEERING OIL IN RESERVOIR. ON MERCEDES BENZ ML AND R CLASS MODELS. *AK