WARNING: This page is about a different car, the 2009 Mercedes-Benz E350 and 2008 Mercedes-Benz E350. However, it is still accessible from the selected car via links, so may be relevant.
FG 46/Set C
MODEL 171, 203, 209, 211, 215, 219, 220, 221
Use:
Bracket for dial gauge for measuring gear rack play on rack-and-pinion steering.