601 589 00 10 00 Screwdriver bit - WS01.00-P-0033B
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 Mercedes-Benz ML350, 2010 Mercedes-Benz ML350, 2009 Mercedes-Benz ML320, 2009 Mercedes-Benz GL320, and 2008 Mercedes-Benz ML320. However, it is still accessible from the selected car via links, so may be relevant.
FG 01/15/Set B
ENGINES all
Use:
Screwdriver bit 1/2" square, 140 mm long for double hexagon socket screw M 10 on cylinder head.
Additional use
For counterholding alternator shaft when removing belt pulley.