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Home >> Mercedes Benz >> 2018 >> S450 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Complete Engine - 222 Chassis (1 Of 2) >> Testing & Repair >> Remove/Install Left Oil Separator - AR01.20-P-7901MNL

Remove/Install Left Oil Separator - AR01.20-P-7901MNL

Engine 176 in model 217, 222 

Fig 1: Left Oil Separator Components Location - Engine 176 In Model 222
G15360016Courtesy of MERCEDES-BENZ USA
WARNING Risk of injury  to skin and eyes suffering scalding from contact with hot coolantspray.
Risk of poisoning  from swallowing coolant.
Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.
AS20.00-Z-0001-01A
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
Notice  Notes on threaded connections with aluminum screws/bolts   AH00.00-P-0006-01RM
Notice  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
Notice  Notes on coolant   AH20.00-P-2080-01KOA
REMOVINGINSTALLING Remove/install     
1 Remove left charge air cooler. Engine 176 in model 217, 222 with small lower coolant expansion reservoir for low-temperature circuit AR09.41-P-6827MNL
    Engine 176 in model 217, 222 with large lower coolant expansion reservoir for low-temperature circuit AR09.41-P-6827MNP
    INSTALLATION IMPORTANT Install top engine cover, install front and center bottom engine compartment lining only after the leak test.  
2 Remove screw (18) and remove purge lines (12) from the boot (11).    
3 Place purge lines (12) and purge line (7) to one side.    
4 Remove boot (11) from left exhaust gas turbocharger. TORQUE SPECIFICATION Clamp, boot to exhaust gas turbocharger/air filter *BA01.20-P-1003-01J 
5 Remove bleed line (14) from the cylinder head cover. INSTALLATION IMPORTANT Replace seal.  
    TORQUE SPECIFICATION Bolt, vent line to cylinder head cover/turbocharger *BA01.20-P-1001-01J 
6 Remove screws (17). TORQUE SPECIFICATION Bolt, oil separator to chain case cover *BA01.20-P-1002-01J 
7 Pull oil separator (13) toward the front out of the cylinder head.    
8 Pull oil separator (13) upward out of the charge-air distributor (16). INSTALLATION IMPORTANT Install new screws (17) and seals of the oil separator (13).  
9 Install in the reverse order.    
10 Check oil level of the engine and correct.    
REFER TO MAINTENANCE     AP18.00-P-1812SKI
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
11 Carry out engine test run and check engine for proper operation and leak tightness.    
12 Install front and center bottom engine compartment linings.   AR61.20-P-1105LF
13 Install upper engine cover.    
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number Designation Engine 176
BA01.20-P-1001-01J Bolt, vent line to cylinder head cover/turbocharger Nm 9
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number Designation Engine 176
BA01.20-P-1002-01J Bolt, oil separator to chain case cover Nm 4, 5
CRANKCASE VENTILATION SYSTEM, CYLINDER HEAD COVER

Number Designation Engine 176
BA01.20-P-1003-01J Clamp, boot to exhaust gas turbocharger/air filter Nm 1, 5