Remove/install turbocharger with exhaust manifold - AR09.40-P-6025MMB

ENGINES 157, 278 in MODEL 216, 221 

Shown on right-hand side 

Fig 1: Identifying Turbocharger With Exhaust Manifold Components - Shown On Right Hand Side

Courtesy of MERCEDES-BENZ USA

Shown on right-hand side 

Fig 2: Identifying Turbocharger With Exhaust Manifold Components - Shown On Right Hand Side

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Drain engine oil		AP18.00-P-0101SX
2	Remove engine with front axle carrier		AR01.10-P-2500MMB
3	Detach clamp (6) on shield (7)	When removing right turbocharger with exhaust manifold (1)
4	Remove refrigerant line on A/C compressor (A9)	When removing left turbocharger with exhaust manifold (1)
			*BA83.55-P-1003-01M
5	Remove shield (7) on engine support		*BA22.10-P-1003-02A
6	Remove shield (8) on cylinder head	Ensure correct seating of clips (5) on the shield (8) and exhaust manifold gasket.
			*BA09.40-P-1007-01R
7	Detach vacuum hose for boost pressure control valve on turbocharger with exhaust manifold (1)
8	Remove charge air ducts	Seal openings using protective cover.	AR09.41-P-8620MMB
			Fig 3
9	Detach coolant line for charge air cooler on timing case cover	When removing the right turbocharger with exhaust manifold (1)
10	Remove coolant lines		AR20.20-P-7440MMB
			Figure
11	Detach upper oil line on turbocharger with exhaust manifold (1)		AR18.30-P-6850MMB
			Figure
12	Detach lower oil line on oil pan		AR18.30-P-6850MMB
13	Remove bracket (9) between exhaust pipe (2) and cylinder head		*BA14.10-P-1004-01E
			*BA14.10-P-1005-01E
14	Remove exhaust pipe (2)		*BA14.10-P-1003-01E
15	Remove lock washer (3) on turbocharger with exhaust manifold (1)	Replace lock washer (3).
16	Unscrew nuts (1a, 1b) on turbocharger with exhaust manifold (1)	Observe tightening procedure for exhaust manifold (1).	AR14.10-P-3000-01MM
			*BA09.40-P-1001-01R
17	Remove turbocharger with exhaust manifold (1) from cylinder head	Replace exhaust manifold gasket.
18	Install in the reverse order
19	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
20	Carry out engine test run, checking engine for proper operation and leaks

Fig 3: Identifying Set Of Protective Covers (001 589 02 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA