Set basic position of camshafts - AR05.20-P-6020EW

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ENGINES 272, 273 in MODEL 212

Fig 1: Camshafts Basic Position

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove camshaft adjuster (13, 14) for exhaust camshafts		AR05.20-P-7201EWA
2	Remove tensioning rail bolts (23) and pull tensioning rail (24) upwards out of the timing case	Apply sealant to the tensioning rail bolts (23) before assembly.	AR01.30-P-5800-04V
			Figure
			Figure
			Figure
		Loctite sealant 5970	*BR00.45-Z-1013-01A
3	Lift timing chain and pull off camshaft adjuster (15) from intake camshaft (3) towards the front		AR05.20-P-7201EWE
4	Lift timing chain and turn camshaft adjuster (16) in basic position	See "check basic position of camshafts".	AR05.20-P-6010-01VB
5	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
6	Conduct engine test run and check engine for leaks

Fig 2: Identifying Squeeze Gun (112 589 00 25 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Impact Extractor (116 589 20 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Threaded Stud (116 589 01 34 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1013-01A	Loctite sealant 5970	A 003 989 98 20