Mercedes alternator fits various models. The part number is AL0844. Please make sure this matches yours.
Fits.
CL550 2007-2010
CLK550 2007-2009
CLS550 2007-2010
E350 2006-2011
E550 2007-2011
G550 2009-2015
GL450 2007-2008
GL550 2008-2008
ML350 2006-2008
ML550 2008-2008
R350 2006-2008
S550 2007-2011
SL550 2007-2009
SL550 2011-2012
Fits.
CL550 2007-2010
CLK550 2007-2009
CLS550 2007-2010
E350 2006-2011
E550 2007-2011
G550 2009-2015
GL450 2007-2008
GL550 2008-2008
ML350 2006-2008
ML550 2008-2008
R350 2006-2008
S550 2007-2011
SL550 2007-2009
SL550 2011-2012