There have been 5 technical service bulletins issued for the 2012 Mercedes Benz GL450.
| Bulletin Date: | Nov. 11, 2020 |
| Component: | Diesel fuel system. |
| Bulletin Summary: | Mercedes-benz USA, LLC (?mbusa?) has entered into an agreement with the united states department of justice (doj), the environmental protection agency (epa), the California air resources board (carb), and the California attorney general?s o |
| Vehicles covered in this TSB: |
2012 Mercedes Benz GL350,
2013 Mercedes Benz GL350,
2014 Mercedes Benz GL350,
2015 Mercedes Benz GL350,
2016 Mercedes Benz GL350,
2012 Mercedes Benz GL450,
2013 Mercedes Benz GL450,
2014 Mercedes Benz GL450,
2015 Mercedes Benz GL450,
2016 Mercedes Benz GL450,
2012 Mercedes Benz GL550,
2013 Mercedes Benz GL550,
2014 Mercedes Benz GL550,
2015 Mercedes Benz GL550,
2016 Mercedes Benz GL550,
|
| Bulletin Date: | Nov. 11, 2020 |
| Component: | Gasoline fuel system. |
| Bulletin Summary: | Mercedes-benz USA, LLC (?mbusa?) has entered into an agreement with the united states department of justice (doj), the environmental protection agency (epa), the California air resources board (carb), and the California attorney general?s o |
| Vehicles covered in this TSB: |
2012 Mercedes Benz GL350,
2013 Mercedes Benz GL350,
2014 Mercedes Benz GL350,
2015 Mercedes Benz GL350,
2016 Mercedes Benz GL350,
2012 Mercedes Benz GL450,
2013 Mercedes Benz GL450,
2014 Mercedes Benz GL450,
2015 Mercedes Benz GL450,
2016 Mercedes Benz GL450,
2012 Mercedes Benz GL550,
2013 Mercedes Benz GL550,
2014 Mercedes Benz GL550,
2015 Mercedes Benz GL550,
2016 Mercedes Benz GL550,
|
| Bulletin Date: | Jan. 14, 2020 |
| Component: | Interior lighting. |
| Bulletin Summary: | Retrofitted front door exit lamps with logo projection flicker |
| Vehicles covered in this TSB: |
2019 Mercedes Benz A220,
2020 Mercedes Benz A220,
2020 Mercedes Benz Amg A35,
2003 Mercedes Benz CLS63,
2004 Mercedes Benz CLS63,
2005 Mercedes Benz CLS63,
2006 Mercedes Benz CLS63,
2007 Mercedes Benz CLS63,
2008 Mercedes Benz CLS63,
2009 Mercedes Benz CLS63,
2010 Mercedes Benz CLS63,
2011 Mercedes Benz CLS63,
2012 Mercedes Benz CLS63,
2013 Mercedes Benz CLS63,
2014 Mercedes Benz CLS63,
|
| Bulletin Date: | Jan. 14, 2020 |
| Component: | Body door. |
| Bulletin Summary: | Retrofitted front door exit lamps with logo projection flicker |
| Vehicles covered in this TSB: |
2019 Mercedes Benz A220,
2020 Mercedes Benz A220,
2020 Mercedes Benz Amg A35,
2003 Mercedes Benz CLS63,
2004 Mercedes Benz CLS63,
2005 Mercedes Benz CLS63,
2006 Mercedes Benz CLS63,
2007 Mercedes Benz CLS63,
2008 Mercedes Benz CLS63,
2009 Mercedes Benz CLS63,
2010 Mercedes Benz CLS63,
2011 Mercedes Benz CLS63,
2012 Mercedes Benz CLS63,
2013 Mercedes Benz CLS63,
2014 Mercedes Benz CLS63,
|
| Bulletin Date: | May. 16, 2014 |
| Component: | Power train. |
| Bulletin Summary: | Delayed 2-3 upshift |
| Vehicles covered in this TSB: |
2005 Mercedes Benz GL450,
2006 Mercedes Benz GL450,
2007 Mercedes Benz GL450,
2008 Mercedes Benz GL450,
2009 Mercedes Benz GL450,
2010 Mercedes Benz GL450,
2011 Mercedes Benz GL450,
2012 Mercedes Benz GL450,
2013 Mercedes Benz GL450,
2014 Mercedes Benz GL450,
2015 Mercedes Benz GL450,
2016 Mercedes Benz GL450,
2017 Mercedes Benz GL450.
|
| Bulletin Date: | Mar. 21, 2014 |
| Component: | Electrical system. |
| Bulletin Summary: | Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: oil passage plug hole on left beside mechanical vacuum pump. 2. Right cylinder head: oil passage plug hole below high-press |
| Vehicles covered in this TSB: |
2011 Mercedes Benz CL550,
2012 Mercedes Benz CL550,
2013 Mercedes Benz CL550,
2014 Mercedes Benz CL550,
2011 Mercedes Benz CL600,
2012 Mercedes Benz CL600,
2013 Mercedes Benz CL600,
2014 Mercedes Benz CL600,
2011 Mercedes Benz CL63,
2012 Mercedes Benz CL63,
2013 Mercedes Benz CL63,
2014 Mercedes Benz CL63,
2011 Mercedes Benz CL65,
2012 Mercedes Benz CL65,
2013 Mercedes Benz CL65,
|
| Bulletin Date: | Mar. 21, 2014 |
| Component: | Gasoline fuel system. |
| Bulletin Summary: | Minor leaks at the oil duct of the left or right cylinder head of engines 157, 276 and 278. 1. Left cylinder head: oil passage plug hole on left beside mechanical vacuum pump. 2. Right cylinder head: oil passage plug hole below high-press |
| Vehicles covered in this TSB: |
2011 Mercedes Benz CL550,
2012 Mercedes Benz CL550,
2013 Mercedes Benz CL550,
2014 Mercedes Benz CL550,
2011 Mercedes Benz CL600,
2012 Mercedes Benz CL600,
2013 Mercedes Benz CL600,
2014 Mercedes Benz CL600,
2011 Mercedes Benz CL63,
2012 Mercedes Benz CL63,
2013 Mercedes Benz CL63,
2014 Mercedes Benz CL63,
2011 Mercedes Benz CL65,
2012 Mercedes Benz CL65,
2013 Mercedes Benz CL65,
|
| Bulletin Date: | Jul. 30, 2013 |
| Component: | Power train. |
| Bulletin Summary: | Fc 2783 (friction power of torque converter lockup clutch is too high) or fc 0741 (actuation of torque converter lockup clutch not possible) stored in transmission control unit. One possible additional customer complaint could be "poor acce |
| Vehicles covered in this TSB: |
2013 Mercedes Benz C180,
2014 Mercedes Benz C180,
2014 Mercedes Benz C190,
2012 Mercedes Benz C250,
2013 Mercedes Benz C250,
2014 Mercedes Benz C250,
2008 Mercedes Benz C300,
2009 Mercedes Benz C300,
2010 Mercedes Benz C300,
2011 Mercedes Benz C300,
2012 Mercedes Benz C300,
2013 Mercedes Benz C300,
2014 Mercedes Benz C300,
2008 Mercedes Benz C350,
2009 Mercedes Benz C350,
|
Also see
Common problems of Mercedes Benz GL450.