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 05/Set B
ENGINE 642
MODIFICATION NOTES
9.10.06
Replacement for 642 589 01 40 00
Use:
Tie-down sets hold the timing chain in mesh with the camshaft sprocket.
Fig 1: Identifying Tie-Down Set (642 589 04 40 00)