Remove/Install Oil Separator - AR01.20-P-9750MNA

Engine 176 in model 463 

up to model year 2019 

Engine 177 in model 205 

Fig 1: Oil Separator Components Location - Engine 176 In Model 463 Up To Model Year 2019 (Shown On Engine 177)

Courtesy of MERCEDES-BENZ USA

Shown on engine 177 

	Remove/install
1	Remove right or left charge air distributor	Engine 176 in model 463 up to model year 2019	AR09.41-P-8683MNF
		Engine 177 in model 205	AR09.41-P-8683MNA
2	Remove charge air cooler	When removal the right oil separator (1).
		Engine 176 in model 463 up to model year 2019	AR09.41-P-6828MNF
		Engine 177 in model 205	AR09.41-P-6828MNA
3	Remove left charge air cooler	When removal the left oil separator (1).
		Engine 176 in model 463 up to model year 2019	AR09.41-P-6827MNF
		Engine 177 in model 205	AR09.41-P-6827MNA
4	Unclip vent lines (8) on right oil separator (1) and holder	When removal the right oil separator (1).
5	Unclip wiring harness from left oil separator (3)	Engine 176 in model 463 up to model year 2019 When removing the left oil separator (3).
6	Unclip vent lines at ventilation of left oil separator (3)	Engine 176 in model 463 up to model year 2019 When removing the left oil separator (3).
7	Remove screw/bolt (7) and detach vent line (9) at boot (6)	When removal the right oil separator (1). : Replace seals.
8	Detach vent lines at boot of left ATL	Engine 176 in model 463 up to model year 2019 When removing the left oil separator (3). : Replace seals.
9	Open right or left clamp (5)
10	Remove screw/bolts (2)	: Replace screw/bolts (2).
		Bolt, oil separator to chain case cover	*BA01.20-P-1002-01J
11	Carefully pull out right or left oil separator (1, 3) together with vent line (4) and boot (6) to the front and remove	The vent line (4) must not be detached from the right or left oil separator (1, 3). The vent line (4) and the right or left oil separator (1, 3) will be damaged otherwise.
		Observe installation position of the seals. Non-observance of the installation position of the seals leads to leakage. : Replace all seals.
12	Install in the reverse order
13	Check engine oil level; correct if necessary
		Engine 176 in model 463 up to model year 2019	AP18.00-P-0101GE
		Engine 177 in model 205	AP18.00-P-1848U
	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
14	Carry out an engine test run, checking the engine for proper operation and leaktightness