Remove/install hydraulic valve clearance compensating elements - AR05.00-P-2011SXI

ENGINE 642 in MODEL 207, 212, 218, 221, 222 

Fig 1: Identifying Hydraulic Valve Clearance Compensating Elements Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove camshafts	ENGINE 642 in MODEL 222	AR05.20-P-6992LFD
		ENGINE 642 in MODEL 207, 212, 218, 221	AR05.20-P-6992SXI
2	Detach compensating element (1) from roller cam follower (3)	Pry off clamp (2) by hand.
3	Remove roller cam follower (3)
4	Remove compensating elements (1)	Do not use a magnet. This would magnetize the slide surfaces of the compensating element (1) and the roller cam follower (3). This can cause minute iron chips to accumulate, which can damage the compensating element (1) and the cam. Re-install compensating elements (1) at the same place if they have not been replaced.
5	Install in the reverse order