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Remove/install oil pump - AR18.10-P-6020CMG

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ENGINE 156 in MODEL 204, 212 

Fig 1: Oil Pump Remove/Install Components
G09975215Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove oil pan   AR01.45-P-7500CMG
2 Remove bolts (4, 5) TORQUE SPECIFICATION *BA18.10-P-1004-01N 
TORQUE SPECIFICATION *BA18.10-P-1005-01N 
3 Detach oil suction pipe (3) from oil pump (1) and lower section of cylinder crankcase    
4 Push back chain tensioner (6) and detach oil pump chain (7) from oil pump (1)    
5 Remove bolts (2) for oil pump (1) TORQUE SPECIFICATION *BA18.10-P-1001-01N 
6 Remove oil pump (1) INSTALLATION IMPORTANT
  • Replace seal.
  • Fill the oil pump with engine oil before installation so that it delivers oil at the initial startup.
 
7 Clean oil strainer for oil pump (1) IMPORTANT The oil strainer is located between the oil suction pipes (3) and the oil pump (1).  
TORQUE SPECIFICATION *BA18.10-P-1004-01N 
INSPECT Checking     
8 Check oil pump gears for easy movement and damage IMPORTANT Install new oil pump (1) if necessary.  
9 Install in the reverse order    
10 Check engine oil level and adjust correctly    
REFER TO MAINTENANCE Engine oil and filter change AP18.00-P-0101TMG
DANGER 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 Conduct engine test run and check engine for leaks whilst it is running
OIL PUMP

Number Designation Engine 156
BA18.10-P-1001-01N Fitted bolt, oil pump to crankcase Nm 20
BA18.10-P-1004-01N Bolt, oil suction pipe to oil pump. M6X16 Nm 8.5
BA18.10-P-1005-01N Oil suction pipe on crankcase bottom section M6X16 Nm 8.5