Remove/install oil spray nozzles (pistons) - AR18.00-P-4000GZ (ML500)

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ENGINE 113.964 in MODEL 164.175

Shown without connecting rod and pistons

Fig 1: Identifying Torx Screws, Oil Spray Nozzles And Injection Pipe

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Risk of death caused by vehicle slipping or toppling off the lifting platform.	Align vehicle between the columns of the and position the four support plates below the lifting platform support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
1	Remove bottom engine compartment paneling	Installation: Only install the lower engine compartment after a successful leak test.	AR61.20-P-1105GZ
2	Remove oil pan bottom section		AR01.45-P-7555GZ
3	Remove oil pump	Installation: Ensure that the oil return shutoff valve is correctly located. Clean the oil pump strainer. Fill the oil pump with engine oil before installing, so that oil is delivered at the initial startup.	AR18.10-P-6020GZ
4	Remove oil spray nozzles (1)	If required, turn the crankshaft a little at the crankshaft center bolt. Installation: Replace oil spray nozzle (1). It is important to ensure that the spray pipes (3) of the oil spray nozzles (1) are not bent when being installed.
			*BA18.00-P-1001-01D
	Clean
5	Inspect the oil ducts and clean if required	Note the following: Blow through oil galleries in direction of flow oil with compressed air. Do not use any hard objects for cleaning.
6	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 running engine	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
7	Conduct engine test run and check the engine for leaks while it is running	In the event of oil loss determine and eliminate cause, otherwise malfunctions, transmission damage, and serious environmental pollution may occur.

ENGINE LUBRICATION, ENGINE OIL COOLING, GENERAL

Number	Designation		Engine 112 except 112.951/976, 113.940/941/942/943/944/945/946/948/960/961/962/963/964/965/966/967/968/971/980/981/982/984/986/992/995
BA18.00-P-1001-01D	Bolt, oil-spray nozzle at crankcase	Nm	15