Check basic position of camshafts - AR05.20-P-6010EW

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ENGINES 272, 273 in MODEL 212

Fig 1: Camshafts Basic Position

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove front engine cover	See Remove air filter housing.	AR09.10-P-1150EWS
2	Remove Hall sensors on camshafts		*BA15.10-P-1002-03E
	Checking
3	Turn engine at crankshaft in direction of rotation of engine (arrow) to a 55° crank before ignition TDC (305° marking on belt pulley) and check basic position of camshafts	The 305° marking (1) on belt pulley must be aligned with positioning edge (2) on timing case cover and markings (3) on pulse wheels must be located in center of bores for Hall sensors. If necessary: ↓ Set basic position of camshafts.	AR05.20-P-6020EW
			Figure
4	Install in the reverse order
	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
5	Carry out an engine test run and check engine for leaks

POSITION SENSOR

Number	Designation		Engine 272	Engine 273
BA15.10-P-1002-03E	Bolt, camshaft Hall sensor to front cover on cylinder head	Nm	8	8

Fig 2: Identifying Wrench Socket (001 589 65 09 00)

Courtesy of MERCEDES-BENZ USA