WARNING: This page is about a different car, the 2009 Mercedes-Benz CLK350 and 2008 Mercedes-Benz CLK350. However, it is still accessible from the selected car via links, so may be relevant.
FG 00
MODEL all
Use/specification:
1/2" square drive extension, 575 mm long, e.g. for starter, transmission
Fig 1: View Of 1/2" Square Drive Extension Of 575 mm Long