611 589 01 63 00 Female connector - WS01.00-P-0056B
WARNING: This page is about a different car, the 2012 Mercedes-Benz C300, 2011 Mercedes-Benz C300, 2010 Mercedes-Benz C300, 2009 Mercedes-Benz C300, and 2008 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.
FG 01/05/Set B
ENGINE 611 /980, 612 /965 /966, 613, 628 /962, 642, 646, 647, 648, 668
Use:
Screw-in piece M10x1 mm with connection nipple for quick-coupling and integrated check valve length
173 mm for pencil-type glow plug hole.
For compression recorders
001 589 76 21 00 and 001 589 78 21 00, and for building up pressure in combustion chamber after removing integrated check valve.