Remove/install exhaust manifold - AR14.10-P-3915GZA (ML350, ML550, GL450, GL550)

WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.

ENGINE 272, 273 in MODEL 164

Fig 1: Identifying Exhaust Manifold Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Risk of injury to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Remove front engine compartment cover
2	Remove right and left engine intake air duct
3	Disconnect ground cable of battery	When removing right exhaust manifold (1) Insulate clamping device for ground line in order to prevent inadvertent contact with the ground point of the battery.	AR54.10-P-0003GZ
	Notes on battery		AH54.10-P-0001-01A
4	Unscrew the accessible nuts while the vehicle is lowered (8 and 9)		*BA14.10-P-1001-01E
5	Remove left and right catalytic converter		AR49.10-P-7100GZA
6	Remove heat shield on starter	When removing right exhaust manifold (1)
7	Unscrew accessible nuts while vehicle is raised (8 and 9) and remove the exhaust manifold (1 and 2) from below	Installation: Replace lock washer (10 or 11).
			*BA14.10-P-1001-01E
	Clean
8	Clean sealing surfaces at cylinder head and exhaust manifold (1 and 2)
9	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
10	Test run engine and check exhaust system for leaks

EXHAUST MANIFOLD

Number	Designation		Engine 272	Engine 273
BA14.10-P-1001-01E	Nut, exhaust manifold to cylinder head	Nm	16	16