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 03/Set B
ENGINE 112, 113, 271, 272, 273
Use:
Socket wrench to loosen belt pulley on the air conditioner compressor, e.g. in combination with 112 589 07 40 00 counterholder.