Remove/install left turbocharger - AR09.40-P-6026MNA

ENGINE 176 in MODEL 463 

ENGINE 177 in MODEL 205 

ENGINE 178 in MODEL 190 

Shown on ENGINE 177 

Fig 1: Left Turbocharger Remove/Install Components - Shown On Engine 177 (1 Of 7)

Courtesy of MERCEDES-BENZ USA

Fig 2: Left Turbocharger Remove/Install Components - Shown On Engine 177 (2 Of 7)

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Fig 3: Left Turbocharger Remove/Install Components - Shown On Engine 177 (3 Of 7)

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Fig 4: Left Turbocharger Remove/Install Components - Shown On Engine 177 (4 Of 7)

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Fig 5: Left Turbocharger Remove/Install Components - Shown On Engine 177 (5 Of 7)

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Fig 6: Left Turbocharger Remove/Install Components - Shown On Engine 177 (6 Of 7)

Courtesy of MERCEDES-BENZ USA

Fig 7: Left Turbocharger Remove/Install Components - Shown On Engine 177 (7 Of 7)

Courtesy of MERCEDES-BENZ USA

	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
	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
	Remove/install
1	Drain coolant from low-temperature circuit	Engine 176 in model 463	AR09.41-P-6834MNF
		Engine 178 in model 190	AR09.41-P-6834MNB
		Engine 177 in model 205	AR09.41-P-6834MNA
2.1	Disconnect left and right catalytic converter at connecting points of exhaust system	Engine 177 in model 205 Engine 178 in model 190
		Engine 178 in model 190	AR49.10-P-7142MNB
		Engine 177 in model 205	AR49.10-P-7283MNA
2.2	Remove left and right rear silencer	Engine 176 in model 463	AR49.10-P-4951GW
3	Detach lower bracket of catalytic converters at CATs	Engine 178 in model 190	AR49.10-P-5500MNB
4	Remove cross strut above exhaust system	Engine 178 in model 190	AR49.10-P-7142MNB
5.1	Remove left-hand air filter housing	Engine 176 in model 463 Engine 177 in model 205	AR09.10-P-1150MNA
5.2	Remove left intake air duct downstream of air filter	Engine 178 in model 190	AR09.41-P-1311-01AL
6	Remove right air filter housing	Engine 176 in model 463 Engine 177 in model 205	AR09.10-P-1150MNA
7	Remove cover (2)	Make sure that the cover (2) is seated correctly.
8	Remove screw/bolts (19) and remove heat shield (20) upwards	Bolt, upper heat shield to bracket/side heat shield	*BA09.40-P-1006-01ZA
9	Unclip electrical lines (6, 7, 8, 9) from heat shield (10)	Engine 177 in model 205
10	Detach bracket (11) on crankcase	Bolt, rear heat shield bracket to crankcase	*BA09.40-P-1005-01ZA
11	Remove heat shield (10) of catalytic converters	Engine 176 in model 463	AR49.10-P-5500MNF
		Engine 177 in model 205	AR49.10-P-5500MNA
12	Remove upper bracket for CATs	Engine 176 in model 463	AR49.10-P-5500MNF
		Engine 178 in model 190	AR49.10-P-5500MNB
		Engine 177 in model 205	AR49.10-P-5500MNA
13.1	Unclip electrical lines (8, 14) on heat shield (21)	Engine 177 in model 205
13.2	Unclip electrical line (8) on heat shield (21)	Engine 178 in model 190
13.3	Unclip electrical line (14) on heat shield (21)	Engine 176 in model 46
14	Remove the ignition coil (16)	Engine 178 in model 190	AR15.12-P-2003MNB
		Engine 176 in model 463 Engine 177 in model 205	AR15.12-P-2003MNA
15	Remove screw/bolts (22) and remove heat shield (21) upwards	Bolt, side heat shield to cylinder head cover	*BA09.40-P-1007-01ZA
16	Detach boot (4) on left ATL (1) and place to one side	Vent line clamp to exhaust gas turbocharger/air filter	*BA01.20-P-1003-01J
17	Detach the vacuum hose (3) at left ATL (1)
18	Remove coolant return line (5)		AR20.20-P-1101MNA
19	Detach holder for coolant feed pipe (23)		AR20.20-P-1100MNA
20	Detach coolant feed pipe (23) on left ATL (1) and on left cylinder head		AR20.20-P-1100MNA
21	Detach low-temperature circuit expansion reservoir (13) and place to one side with connected lines	Engine 176 in model 463 Engine 177 in model 205	AR09.41-P-0001MNA
22	Detach charge air hose (24) at left ATL (1)
23	Detach left catalytic converter on left ATL (1)	The alignment of the clamp between left ATL (1) and left CAT must be observed. If a one-piece clamp is installed, this must be replaced. For two-piece clamp, replace screw/bolts and nuts.	AR09.40-P-6018-01MNA
		Engine 178 in model 190 Clamp, front exhaust system to turbocharger	*BA49.10-P-1010-01AG
		Engine 176 in model 463 Screw/bolt, catalytic converter clamp to exhaust gas turbocharger	*BA49.10-P-1001-02F
		Engine 177.9 in model 205 Clamp, front exhaust system to turbocharger	*BA49.10-P-1001-02E
		Engine 176 in model 463 With two-piece clamp Engine 177 in model 205 With two-piece clamp Engine 178 in model 190 With two-piece clamp Caulking bolt	Fig 9
24	Detach right CAT on right ATL	The alignment of the clamp between right ATL and right CAT must be observed. If a one-piece clamp is installed, this must be replaced. For two-piece clamp, replace screw/bolts and nuts.	AR09.40-P-6018-01MNA
		Engine 178 in model 190 Clamp, front exhaust system to turbocharger	*BA49.10-P-1010-01AG
		Engine 176 in model 463 Screw/bolt, catalytic converter clamp to exhaust gas turbocharger	*BA49.10-P-1001-02F
		Engine 177.9 in model 205 Clamp, front exhaust system to turbocharger	*BA49.10-P-1001-02E
		Engine 176 in model 463 With two-piece clamp Engine 177 in model 205 With two-piece clamp Engine 178 in model 190 With two-piece clamp Caulking bolt	Fig 9
25	Remove collar clamp (17)	Replace hose clamp (17). The parallel gauge (01) must lie flush on the contact surfaces (arrows) in order to achieve parallelism from the right ATL to the left ATL (1). Bolt, turbocharger clamp to exhaust manifold	*BA09.40-P-1001-01ZA
		Parallel support	Fig 8
26	Remove left ATL (1) with oil return line (18) upwards	One must ensure that the marking (29) on the oil return line (18) is flush with the crankcase. Leaks will occur otherwise on the oil return line (18). Replace sealing ring on left exhaust manifold.
27	Remove oil return line (18) at left ATL (1)	Replace oil return line (18) with sealing rings (28).	AR09.40-P-6043MNA
28	Install in the reverse order
	Check
29	Check engine oil level and correct if necessary
		Engine 177 in model 205	AP18.00-P-1811MP
		Engine 178 in model 190
		Engine 176 in model 463	AP18.00-P-0101GE
	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
30	Perform an engine test run and check engine for leaktightness

Fig 8: Identifying Parallel Support (168 589 03 21 00)

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Fig 9: Identifying Caulking Bolt (103 589 01 39 00)

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