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Remove/Install Filler Neck For Engine Oil - AR01.40-P-0004XGC

Engine 177 in model 463 

as of model year 2019 

Fig 1: Filler Neck For Engine Oil Components Location - Engine 177 In Model 463 As Of Model Year 2019
G13678766Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
CAUTION Risk of injury  to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers. AS18.00-Z-0001-01A
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
REMOVINGINSTALLING Remove/install     
1 Remove upper engine cover.   AR01.10-P-2405XGC 
    INSTALLATION IMPORTANT Only install upper engine cover after the leak test.  
2 Remove screws (1) and remove filler neck. INSTALLATION IMPORTANT Replace O-ring.  
    TORQUE SPECIFICATION Bolt filler neck to cylinder head cover *BA01.20-P-1006-01J 
3 Modify molded seal and cap of filler neck When replacing filler neck.  
4 Install in the reverse order.    
WARNING Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
5 Perform engine test run and check engine for leak tightness.    
6 Install upper engine cover.   AR01.10-P-2405XGC 
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number Designation Engine 177
BA01.20-P-1006-01J Bolt, filler neck to cylinder head cover Nm 9