Remove/install centrifuge - AR01.20-P-2100MMB

ENGINES 157, 278 in MODEL 216, 221 

Fig 1: Identifying Centrifuge Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof	Keep body parts and limbs well clear of moving parts.	AS00.00-Z-0011-01A
1	Remove upper engine cover
2	Remove right air filter housing
3	Remove insulation on right rail
4	Detach pipe (2) from cylinder head cover	It is just necessary to remove the two bolts on the cylinder head cover since the connection to the charge air duct and charge air cooler must not be lost.
5	Raise vehicle		AR00.60-P-1000SX
6	Remove rear and center section of lower engine compartment paneling		AR61.20-P-1105SX
7	Detach vacuum line (1) on intake manifold
8	Remove bolts (3) on centrifuge cover (1) from below		*BA01.20-P-1001-01L
9	Remove centrifuge cover (1) from below
10	Remove bolt for centrifuge at the camshaft		*BA01.20-P-1002-01L
11	Remove centrifuge from camshaft	The dowel pins determine the installation position of the centrifuge at the camshaft.
	Checking
12	Check seal and radial shaft sealing ring for wear and damage; replace centrifuge cover (1) if necessary
13	Check centrifuge for wear and damage; replace centrifuge if necessary
14	Install in the reverse order
15	Check engine oil level; correct if necessary		AP18.00-P-0101SX
	Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
16	Conduct engine test run and check engine for leaks while it is running

CRANKCASE VENTILATION, CYLINDER HEAD COVER

Number	Designation			Engine 157	Engine 278
BA01.20-P-1001-01L	Bolt, centrifuge cover to cylinder head/cylinder head cover	Stage 1	Nm	6	6
		Stage 2	∠°	90	90
BA01.20-P-1002-01L	Bolt, centrifuge to camshaft sprocket	Stage 1	Nm	6	6
		Stage 2	∠°	90	90