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

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ENGINES 272, 273 in MODEL 212 

Fig 1: Oil Pump Remove/Install Components (1 Of 2)
G09975217Courtesy of MERCEDES-BENZ USA
Fig 2: Oil Pump Remove/Install Components (2 Of 2)
G09975218Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
NOTES Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
1 Remove oil pan Engine 272 AR01.45-P-7500EWD
Engine 273 AR01.45-P-7500EW
2 Remove bolts (1, 2) TORQUE SPECIFICATION *BA18.10-P-1005-01B 
TORQUE SPECIFICATION *BA18.10-P-1008-01B 
3 Press chain tensioner (3) to the back, remove oil pump chain (4) from oil pump gear (5) and take out oil pump (6) together with oil suction pipe (7) INSTALLATION IMPORTANT Before installing, moisten oil pump (6) with engine oil.  
4 Remove bolt (7s) and detach oil suction pipe (7) from oil pump (6) If necessary
INSTALLATION IMPORTANT Replace O-ring (7a).
 
TORQUE SPECIFICATION *BA18.10-P-1004-01B 
5 Install in the reverse order    
INSPECT Checking     
6 Check engine oil level and correct    
REFER TO MAINTENANCE Engine oil and filter change AP18.00-P-0101EW
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
7 Conduct engine test run and check engine for leaks
OIL PUMP

Number Designation Engine 272 Engine 273
BA18.10-P-1004-01B Bolt, oil suction pipe to oil pump. M6X16 Nm 9 9
BA18.10-P-1005-01B Oil suction pipe at crankcase Nm 9 9
BA18.10-P-1008-01B Bolt, oil pump to crankcase Stage 1 Nm 5 5
Stage 2 Nm 20 20