Technical Service Bulletins of Mercedes Benz GL550 Model Years
Mercedes Benz Model Number of Bulletins
  2011 GL550
18
  2010 GL550
14
  2009 GL550
19
  2008 GL550
22
  2007 GL550
19
  2006 GL550
21
  2005 GL550
18

Latest Technical Service Bulletins of Mercedes Benz GL550

2009 Mercedes Benz GL550 front seat belts TSB (Bulletin LI-91-40-P050718)
Bulletin Date: Apr. 5, 2012
Component: Front seat belts
Bulletin Summary: Xentry(mercedes): bulletin provided regarding control unit detecting an undervoltage after buckling up (belt slack elimination) during seat belt adjustment sequence. Updated 5/23/12.
Vehicles covered in this TSB:
2009 Mercedes Benz GL320, 2010 Mercedes Benz GL320, 2011 Mercedes Benz GL320, 2009 Mercedes Benz GL450, 2010 Mercedes Benz GL450, 2011 Mercedes Benz GL450, 2009 Mercedes Benz GL550, 2010 Mercedes Benz GL550, 2011 Mercedes Benz GL550, 2009 Mercedes Benz ML320, 2009 Mercedes Benz ML350, 2010 Mercedes Benz ML350, 2011 Mercedes Benz ML350, 2009 Mercedes Benz ML500, 2010 Mercedes Benz ML500, 2011 Mercedes Benz ML500, 2009 Mercedes Benz ML550, 2011 Mercedes Benz ML550, 2009 Mercedes Benz ML63, 2010 Mercedes Benz ML63, 2011 Mercedes Benz ML63, 2009 Mercedes Benz R320, 2009 Mercedes Benz R350, 2009 Mercedes Benz R500, 2009 Mercedes Benz R63.
2010 Mercedes Benz GL550 steering TSB (Bulletin LI46-20-P)
Bulletin Date: Nov. 29, 2011
Component: Steering
Bulletin Summary: Mercedes-benz: the steering is leaking in the area of input shaft, because of wear on a seal ring. Model 164/251. Updated 2/1/12.
Vehicles covered in this TSB:
2010 Mercedes Benz GL, 2011 Mercedes Benz GL, 2010 Mercedes Benz GL320, 2011 Mercedes Benz GL320, 2010 Mercedes Benz GL450, 2011 Mercedes Benz GL450, 2010 Mercedes Benz GL550, 2011 Mercedes Benz GL550, 2010 Mercedes Benz ML350, 2011 Mercedes Benz ML350, 2010 Mercedes Benz ML500, 2011 Mercedes Benz ML500, 2010 Mercedes Benz ML63, 2011 Mercedes Benz ML63.
2009 Mercedes Benz GL550 front suspension wheel bearing TSB (Bulletin LI-33-25)
Bulletin Date: Aug. 12, 2011
Component: Front suspension wheel bearing
Bulletin Summary: Mercedes-benz: at the front wheel bearing there is a loud knock sound when going around a corner at slow speeds. There is an insufficient fit at the bearings. Updated 10/14/11.
Vehicles covered in this TSB:
2009 Mercedes Benz GL320, 2010 Mercedes Benz GL320, 2011 Mercedes Benz GL320, 2009 Mercedes Benz GL450, 2010 Mercedes Benz GL450, 2011 Mercedes Benz GL450, 2009 Mercedes Benz GL550, 2010 Mercedes Benz GL550, 2011 Mercedes Benz GL550, 2009 Mercedes Benz ML320, 2009 Mercedes Benz ML350, 2010 Mercedes Benz ML350, 2011 Mercedes Benz ML350, 2009 Mercedes Benz ML500, 2010 Mercedes Benz ML500, 2011 Mercedes Benz ML500, 2009 Mercedes Benz ML550, 2009 Mercedes Benz ML63, 2010 Mercedes Benz ML63, 2011 Mercedes Benz ML63.

Also see Common Mercedes Benz GL550 problems