Remove/install solenoid camshaft - AR05.20-P-7295MMB

ENGINES 157, 278 in MODEL 216, 221 

Fig 1: Identifying Solenoid Camshaft 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 engine trim panels (5)
2	Remove both upper charge air duct (2)		AR09.41-P-8620MMB
3	Remove engine oil cooling oil lines from oil filter housing and lay to the side outside the working area	Engine 157 for removal of the camshaft solenoids (Y49/4, Y49/6) on the left cylinder head Seal openings using stop plugs. Replace sealing rings and clean connection area of the oil lines.
			Fig 2
4	Detach ABC (3) feed line from cylinder head cover and from left front cover (1l)	For vehicles with code (487) Active Body Control (ABC), for removal of the camshaft solenoids (Y49/4, Y49/6) on the left cylinder head
5	Remove oil filter housing cover (7)	For removal of the camshaft solenoids (Y49/4, Y49/6) on the left cylinder head
		See engine oil and filter change	AP18.00-P-0101SX
6	Disconnect electrical connector (8) from the respective solenoid (Y49/4, Y49/5, Y49/6, Y49/7)
7	Remove bolts (10) and take out the respective solenoid (Y49/4, Y49/5, Y49/6, Y49/7) from the front cover (1l, 1r)	Replace bolts (10) and sealing ring for the camshaft solenoid (Y49/4, Y49/5, Y49/6, Y49/7). Tighten to indicated torque using an insert box wrench Hazet 6609 c-E8  .
			*BA05.20-P-1008-02A
8	Install in the reverse order
9	Check engine oil level; correct if necessary		AP18.00-P-0101SX
10	Read out fault memory with STAR DIAGNOSIS and erase if necessary		AD00.00-P-2000-04A
	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
11	Carry out engine test run, checking the engine for proper operation and leaks

CAMSHAFT, CAMSHAFT ADJUSTMENT

Number	Designation		Engine 157	Engine 278
BA05.20-P-1008-02A	Bolt connecting camshaft solenoid to front cover on the cylinder head	Nm	5	5

Fig 2: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA