601 589 00 10 00 Screwdriver bit - WS01.00-P-0033B
WARNING: This page is about a different car, the 2009 Mercedes-Benz E550 and 2008 Mercedes-Benz E550. 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.