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 05/Set C
ENGINE 615, 616, 617.91/93/95
Use/specification:
10 mm drift punch for driving in the valve guide (inlet, outlet)