Remove/Install Engine With Front Axle Carrier - AR01.10-P-2500MNM

Engine 177 in model 217, 222 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 

Courtesy of MERCEDES-BENZ USA

Shown on model 217.4 

Shown on model 217.4 with code M005 (4MATIC) 

Courtesy of MERCEDES-BENZ USA

	Risk of fire  due to ignition of R1234yf refrigerant on hot components. Risk of poisoning  caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion  due to formation of ignitable refrigerant/air mixtures	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.	AS83.00-Z-0007-01A
	Risk of explosion  caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contact with fuel.	No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel.	AS47.00-Z-0001-01A
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	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
	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
	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
	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	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-P-0005-01KOA
Notice	Notes on coolant		AH20.00-P-2080-01KOA
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
	Notes on handling refrigerant R1234yf		AH83.30-P-0003-02A
	Notes on AIRmatic	Engine 177 in model 217, 222 except code 487 (Active Body Control (ABC))	AH32.22-P-1000-02LF
	General information on work on gasoline direct injection system		AH07.00-P-2000-01A
	Use of engine no. when installing reconditioned engines and factory-new replacement engines or crankcases		AH01.10-P-0001-01A
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove/install
1	Deactivate easy entry/exit feature	Engine 177 in model 217, 222 with code 275 (Memory Package (driver's seat, steering column and mirror))
2	Shift transmission to neutral and release parking brake
3	Secure vehicle on vehicle lift		AR00.60-P-0100CW
4	Relieve pressure completely in the front suspension struts using the diagnostic system
			AD00.00-P-2000-04B
5	Disconnect battery ground line		AR54.10-P-0003LF
6	Detach front complete wheels		AR40.10-P-1102A
7	Remove screws of front axle shafts at wheel hubs	When removing the engine from the front axle
		Engine 177 in model 217 with code M005 (Vehicles with 4MATIC/all-wheel drive) Engine 177 in model 222 with code M005 (Vehicles with 4MATIC/all-wheel drive) except code Z07 (B7 armoring on special protection version) Aid of helper required.	AR33.25-P-0400LF
8	Remove all upper engine covers	:  Do not install engine covers until after the leak test.
9	Remove all lower engine compartment linings	:  Only install all engine compartment linings after the leak test.	AR61.20-P-1105LF
10	Remove left-hand air filter housing		AR09.10-P-1151MNM
11	Remove right air filter housing		AR09.10-P-1152MNM
12	Disconnect right line of inerting system in engine compartment at connection and place to one side on engine	Engine 177 in model 217, 222 with code 2U8 (Alternative refrigerant)	AR86.10-P-0419LF
13	Drain air conditioning system		AR83.30-P-1760LF
14	Disconnect refrigerant line (3) in engine compartment at connecting point and seal openings with protective cover	Bolt, connecting point for lines	*BA83.30-P-1009-01P
		Bolt, connecting point for lines	*BA83.30-P-1011-01P
		Set of protective covers	Fig 3
15	Secure refrigerant line (3) on engine
16	Remove purge lines (4) for purge control valve at engine side
17	Release and disconnect electrical connector (5) at purge control valve
18	Unclip low-temperature circuit coolant reservoir
19	Disconnect vacuum line (7) from vacuum pump and place to one side		AR43.05-P-1320MNM
20	Remove heat shield (8) at partition
21	Disconnect ground line (24)	Engine 177 in model 222 as of model year 2018 Driver transmission tunnel, ground point	*BA00.19-P-1035-01C
		Engine 177 in model 217 as of model year 2018 Bolt/nut, ground line to transmission/underfloor	*BA00.19-P-1035-01J
22	Disconnect engine wiring harness		AR15.18-P-1000-05MNM
		Bolt, reinforcement to suspension strut support	*BA62.25-P-1002-01B
		Bolt, reinforcement to firewall/longitudinal member/reinforcement, center	*BA62.25-P-1001-01B
		Nut, positive terminal to engine compartment prefuse box	*BA54.15-P-1002-01J
		M6x1	*BA00.10-P-1002-04A
23	Unclip part of the upper engine wiring harness from right cylinder head cover
24	Place engine wiring harness with electric lines of starter-alternator on engine and secure to prevent it from falling down
25	Release and disconnect electrical connector (10) of fan unit and place electric line to one side		AR20.40-P-5050MNM
26	Remove front bumper	Engine 177 in model 217	AR88.20-P-2000LC
27	Remove radiator trim	Engine 177 in model 222	AR88.40-P-4001LF
28	Release and disconnect electrical connectors of night vision camera and radar sensor, unclip electric line (11) on crossmember and place to one side		AR62.30-P-1570LF
29	Remove screws (80) of cross strut (79)	Engine 177 in model 217.4 Screw, front module cross strut to crossmember	*BA62.30-P-1005-01G
30	Remove cross strut (79)	Engine 177 in model 217.4
31	Remove brackets (12) of radiator package at upper crossmember
32	Remove diagonal struts (70, 71) from underbody	Engine 177 in model 217.4
		Screw/bolt, front diagonal strut to front axle carrier/body	*BA61.10-P-1018-01K
33	Remove bracket (23) of rear engine compartment lining
34	Remove center exhaust system (26) with bracket from rear engine mount		AR49.10-P-7283MNM
35	Detach propeller shaft at transmission end		AR41.10-P-0050LF
36	Drain engine oil
			AP18.00-P-0101DD
37.1	Insert and tighten new drain screw	Engine 177 in model 217, 222 with code M005 (Vehicles with 4MATIC/all-wheel drive)
		Plastic drain screw to oil pan bottom section	*BA01.45-P-1007-01Y
37.2	Tighten drain screw with new seal	Engine 177 in model 217, 222 except code M005 (Vehicles with 4MATIC/all-wheel drive)
		Metal drain screw to oil pan bottom section	*BA01.45-P-1004-01Y
38	Drain coolant at radiator		AR20.00-P-1142MNL
39	Drain coolant from low-temperature circuit		AR09.41-P-6834MNM
40	Relieve fuel pressure over diagnostic socket		AR07.03-P-1460-01MNL
		Dust protection cap to service connection	*BA07.03-P-1005-01H
		Pressure hose	Fig 5
41	Remove fuel line (6) and seal openings with stop plugs	Union nut, fuel hose to diagnostic socket/fuel line	*BA07.03-P-1006-01H
		Record plug	Fig 4
42	Turn front wheels to straight-ahead position and fix steering wheel in place with holding device	Retainer device	Fig 2
43	Disconnect steering coupling	Engine 177 in model 217, 222 as of 4/30/14 Do not turn steering wheel when steering coupling is disconnected. Otherwise the clock spring contact will be destroyed.	AR46.10-P-8000-01LW
		Engine mount wrench set	Fig 1
44	Remove coolant bleed line (19)		AR20.20-P-7441-01RQ
45	Remove coolant line (15) from expansion reservoir (16) on cooler and seal with protective cover		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 3
46	Remove left coolant line (17) at low-temperature cooler and seal with protective cover		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 3
47	Remove left refrigerant line (18) at condenser, place to one side and seal openings with stop plugs and protective cover		AR20.20-P-3865MNM
		Set of protective covers	Fig 3
		Record plug	Fig 4
48	Remove coolant hose feed line from engine at partition and seal with protective cover		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 3
49	Lean radiator package against engine and secure
50	Release and disconnect electrical connector o outside temperature sensor (28)
51	Remove low-temperature circuit circulation pump 1		AR09.41-P-6927MNM
52	Remove additional engine radiator in right wheel arch		AR20.20-P-3888MNM
53	Disconnect coolant hose (29) at left wheel arch switchover valve at connection and seal with protective cover		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 3
54	Disconnect coolant hoses (30) at connecting point and seal with protective cover		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 3
55	Release and disconnect electrical connectors (21) at actuator motor of electric power steering
56	Remove electric line (22) of electric power steering at integral carrier
57	Remove rpm sensors at steering knuckles		AR42.30-P-0712LF
58	Release and disconnect electrical connectors of left and right suspension strut
59	Unclip electric lines at left and right steering knuckle
60	Unclip bracket of electric lines at left and right spring link
61	Unclip brackets of electric lines of left and right side at integral carrier
62	Remove left and right front brake caliper from steering knuckles and secure with connected brake lines in wheel arch		AR42.10-P-0070LF
63	Remove left and right suspension strut at spring link	Engine 177 in model 217 except code 487 (Active Body Control (ABC)) Engine 177 in model 222 except code 487 (Active Body Control (ABC))	AR32.25-P-1017LFB
64	Remove upper transverse control arms at left and right steering knuckle and secure to prevent them from tipping		AR33.20-P-0500LF
65	Support integral carrier with lifting platform and manufacturer-specific major assembly mount and secure front axle with a tensioning strap to prevent it from slipping and falling down
	000 588 03 62 00 Lifting platform	When doing so ensure that mounting plates are evenly aligned.	WS01.00-P-0091A
66	Remove screws/bolts (31) of rear engine crossmember	Never use impact wrenches or pneumatic tools to remove/screw in screws/bolts (31). Otherwise the threads can get damaged. :  Replace screws/bolts of rear engine crossmember.	AR22.10-P-43600IA
		Screw/bolt, rear engine support to frame floor assembly	*BA22.10-P-1005-03K
67	Remove screws/bolts (81, 82) of front axle carrier	Bolt/nut, rear mounting support to longitudinal member	*BA33.10-P-1005-01P
		Screw/bolt, front axle carrier at rear to longitudinal member	*BA33.10-P-1002-01P
		Screw/bolt, front axle carrier at front to longitudinal member	*BA33.10-P-1001-01P
68	Lower radiator package and engine/transmission unit with front axle
	000 588 03 62 00 Lifting platform	Never use impact wrench/driver or compressed air tools for screwing in or unscrewing the screw/bolts. Otherwise the threads can get damaged. Engine and transmission must not bump into body panels or major assemblies. Do not crush lines and hoses or subject them to tension. Damage will occur otherwise. :  Replace screws/bolts of front axle carrier. Aid of helper required.	WS01.00-P-0091A
69	Install in the reverse order
70	Check engine oil level; correct if necessary
			AP18.00-P-1812DKI
71	Check engine cooling system for leak tightness		AR20.00-P-1010LF
72	Perform wheel alignment check		AR40.20-P-0200LF
73	Read out and erase fault memory
			AD00.00-P-2000-04B
	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
74	Carry out an engine test run, checking the engine for proper operation and leaktightness
75	Install all lower engine compartment lining		AR61.20-P-1105LF
76	Install all upper engine covers

Fig 1: Identifying Engine Mount Wrench Set (001 589 01 16 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Retainer Device (129 589 01 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Set Of Protective Covers (001 589 11 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Pressure Hose (119 589 04 63 00)

Courtesy of MERCEDES-BENZ USA