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

Engine 176 in model 217, 222 

Shown on model 222 with code 487 (Active Body Control (ABC)) 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 without code M005 (4MATIC) 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 without code M005 (4MATIC) 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 with code 487 (Active Body Control (ABC)) 

Courtesy of MERCEDES-BENZ USA

Shown on model 222 

Courtesy of MERCEDES-BENZ USA

Shown on model 217.4 

Courtesy of MERCEDES-BENZ USA

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 R1234y1 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. Engine 176 in model 217, 222 with code 2U8 (Alternative refrigerant)	AS83.00-Z-0007-01A
	Risk of injury  when working on air conditioning systems due to R744 refrigerant escaping under pressure. Risk of suffocation from inhaling R744 refrigerant in high concentrations. Health hazard caused by inhalation of R744 refrigerant	Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been evacuated. Engine 176 in model 217, 222 with code 1U6 (R744 refrigerant)	AS83.00-Z-0008-01A
	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 or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning  from swallowing hydraulic fluid.	Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses. Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))	AS00.00-Z-0013-01A
	Risk of poisoning  caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury  to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts	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-0006-01A
	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 self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Notes on fitting hydraulic lines and hoses	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))	AH32.50-P-0001-02A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Notes on handling refrigerant R134a		AH83.30-P-0003-01KOA
	Notes on handling refrigerant R744	Engine 176 in Model217, 222 with Code 1U6 (Refrigerant R744)	AH83.30-P-0003-03A
	Notes on handling refrigerant R1234yf		AH83.30-P-0003-02A
	Notes on Active Body Control suspension	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))	AH32.50-P-0001-01N
	Notes on AIRmatic	Engine 176 in Model217, 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	Detach front complete wheels		AR40.10-P-1102A
2	Remove screws of front axle shafts at wheel hubs	Engine 176 in model 217, 222 with transmission 725.0 with code M005 (Vehicles with 4MATIC/all-wheel drive) Aid of helper required.	AR33.30-P-0620LFX
3.1	Relieve pressure in front suspension struts using vehicle diagnosis system	Engine 176 in model 217, 222 except code 487 (Active Body Control (ABC))
			AD00.00-P-2000-04B
3.2	Relieve pressure in system for Active Body Control (ABC)	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))
			AR32.50-P-0001-01LF
4	Deactivate easy entry/exit feature
5	Shift transmission to neutral and release parking brake
6	Place front wheels in straight-ahead position
7	Switch off ignition and store transmitter key outside of transmission range (min. 2 m)
8	Disconnect battery ground line		AR54.10-P-0003LF
9	Secure vehicle on vehicle lift		AR00.60-P-0100CW
10	Remove upper engine cover	:  Only install upper engine cover after the leak test.
11	Remove engine compartment covers over jump-start connection, washer fluid reservoir of windshield washer system and service connection of air conditioning system	:  Only install engine compartment covers after leak test.
12	Remove all lower engine compartment linings		AR61.20-P-1105LF
		:  Only install all lower engine compartment linings after leak test.
13	Remove left-hand air filter housing		AR09.10-P-1151MNL
14	Remove right air filter housing		AR09.10-P-1152MNL
15	Drain air conditioning system		AR83.30-P-1760LF
16	Suction off hydraulic fluid from ABC expansion reservoir (2)	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))	AR32.50-P-0022LF
		Hand pump	Fig 1
17	Remove hydraulic hose (1) from ABC expansion reservoir (2) and seal openings with suitable stop plugs	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))	AR32.50-P-0022LF
		Hose clamp pliers	Fig 2
		Record plug	Fig 5
18	Secure hydraulic hose (1) to engine	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))
19	Disconnect refrigerant line (3) at separating point in engine compartment and seal openings with suitable stop plugs, protective covers	Bolt, connecting point for lines	*BA83.30-P-1011-01P
		Bolt, connecting point for lines	*BA83.30-P-1009-01P
		Record plug	Fig 5
		Set of protective covers	Fig 4
20	Secure refrigerant line (3) to engine
21	Remove purge lines (4) for purge control valve at engine side
22	Release and disconnect electrical connector (5) at purge control valve
23	Unclip electric line of purge control valve and secure electric line to engine
24	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 6
25	Remove fuel line (6) and seal openings with suitable stop plugs	Union nut, fuel hose to diagnostic socket/fuel line	*BA07.03-P-1006-01H
		Record plug	Fig 5
26	Disconnect vacuum line (7) from vacuum pump and place to one side		AR43.05-P-1320MNL
27	Remove heat shield (8) at firewall
28	Disconnect inerting line for removal of engine	Engine 176 in model 217, 222 with code 2U8 (Alternative refrigerant)
			AR15.18-P-1000-06MNL
29	Disconnect engine wiring harness for removal of engine		AR15.18-P-1000-05MNL
		M6X1	*BA00.10-P-1002-04A
		Engine 176 in model 217 as of model year 2018 Bolt/nut, ground line to transmission/underfloor	*BA00.19-P-1035-01J
		Engine 176 in model 222 as of model year 2018 Bolt/nut, ground line to transmission/underfloor	*BA00.19-P-1039-01C
		Nut, positive terminal to engine compartment pre-fuse box	*BA54.15-P-1002-01J
		Bolt, reinforcement to firewall/longitudinal member/reinforcement, center	*BA62.25-P-1001-01B
		Bolt, reinforcement to suspension strut support	*BA62.25-P-1002-01B
30	Release and disconnect electrical connector (10) of fan unit and remove electric line
31.1	Remove front bumper	Engine 176 in model 217
			AR88.20-P-2000LC
31.2	Remove radiator trim	Engine 176 in model 222
			AR88.40-P-4001LF
32	Release and disconnect electrical connectors of Night View Assist camera, DISTRONIC (DTR) sensor and unclip electric line (11) at crossmember and place to one side	Engine 176 in model 222 with code 610 (Night view assist)	AR54.30-P-3008LF
		Engine 176 in model 217 with code 233 (Adaptive cruise control Plus (DISTRONIC PLUS)) with code 237 (Active Blind Spot Assist) with code 238 (Active lane keeping Assist) with code 266 (DISTRONIC PLUS with Cross Traffic Assist (DTR+Q)) with code 268 (Brake Assist System Plus) with code 269 (Brake Assist PLUS with Cross-Traffic Assist (BAS+Q) with code 271 (Autonomous brake intervention/pedestrian protection) with code 300 (PRE-SAFE® Brake) with code P20 (Driving assistant package Plus) Engine 176 in model 222 with code 233 (Adaptive cruise control Plus (DISTRONIC PLUS)) with code 237 (Active Blind Spot Assist) with code 238 (Active lane keeping Assist) with code 266 (DISTRONIC PLUS with Cross Traffic Assist (DTR+Q)) with code 268 (Brake Assist System Plus) with code 269 (Brake Assist PLUS with Cross-Traffic Assist (BAS+Q) with code 271 (Autonomous brake intervention/pedestrian protection) with code 300 (PRE-SAFE® Brake)	AR30.30-P-1010LF
		Engine 176 in model 217 with code 610 (Night view assist)	AR54.30-P-3008LC
33	Remove screws (80) of cross strut (79)	Engine 176 in model 217.4
		Screw, front module cross strut to crossmember	*BA62.30-P-1005-01G
34	Remove cross strut (79)	Engine 176 in model 217.4
35	Remove brackets (12) of radiator package at upper crossmember
36	Fold left air duct segment (13) and right air duct segment (14) inward in direction of radiator package
37	Remove diagonal struts (70)	Engine 176 in model 217.4
		Screw/bolt, front diagonal strut to front axle carrier/body	*BA61.10-P-1018-01K
38	Remove bracket (55) of rear engine compartment lining
39	Remove center exhaust system (58)		AR49.10-P-7283MNL
40	Remove heat shield (57) at front section of propeller shaft to transmission
41	Detach propeller shaft at transmission end		AR41.10-P-0050LF
42	Remove drain screw and catch engine oil in a suitable container
			AP18.00-P-0101MNL
43.1	Insert and tighten new drain screw	Engine 176 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
43.2	Tighten drain screw with new seal	Engine 176 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
44	Drain coolant at radiator		AR20.00-P-1142MNL
45	Drain coolant from low-temperature circuit		AR09.41-P-6834MNL
46	Disconnect steering coupling	Engine 176 in model 217	AR46.10-P-8000LW
		Engine 176 in model 222 as of 4/30/14 Do not turn steering wheel with steering coupling removed. Otherwise, clock spring contact is destroyed.
47	Remove coolant vent lines (60) from radiator and engine and place to one side		AR20.20-P-7441-01RQ
48	Remove coolant line (15) from radiator and seal openings with protective covers		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 3
49	Remove left coolant line (17) at low-temperature cooler and seal openings with protective covers		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 4
50	Remove left refrigerant line (18) at condenser, place to one side and seal openings with suitable stop plugs, protective covers		AR20.20-P-3865MNL
		Bolt/nut, refrigerant line to condenser/gas cooler	*BA83.30-P-1008-01P
		Record plug	Fig 5
		Set of protective covers	Fig 4
51	Remove coolant feed hose (19) at partition and seal openings with protective covers		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 4
52	Lean radiator package against engine and secure
53	Remove lower coolant hose (20) at additional engine radiator and seal openings with protective covers		AR20.20-P-7441-01RQ
		Set of protective covers	Fig 4
54	Remove upper coolant hose (21) of additional engine radiator at lower coolant hose (22) of radiator and seal openings with protective covers	Hose clamp pliers	Fig 2
		Set of protective covers	Fig 4
55	Remove coolant hose (23) at circulation pump and seal openings with protective covers	Hose clamp pliers	Fig 2
		Set of protective covers	Fig 4
56	Remove circulation pump with elastomer bearing (24) from bracket in upward direction and place to one side
57	Release and disconnect electrical connector (25)
58	Release and disconnect electrical connector (33)
59	Release and disconnect electrical connector (26)
60	Release and disconnect electrical connector (27)
61	Release and disconnect electrical connectors (28)		AR46.20-P-0600LF
62	Remove electric line (29) of electric power steering at front axle carrier		AR46.20-P-0600LF
63	Place subharness of power steering system to one side and fix in place in wheel arch
64	Disconnect ABC hydraulic lines at separating point at front right suspension strut and seal openings with suitable stop plugs	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))
			AR32.50-P-0024SX
		Record plug	Fig 5
65	Remove hydraulic lines (30, 31) at valve block and seal openings with suitable stop plugs	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))
			AR32.50-P-0001LF
		Record plug	Fig 5
66	Secure hydraulic lines (30, 31) at engine	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))
67	Remove ABC hydraulic lines at oil cooler and seal openings with suitable stop plugs	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))
		:  Replace sealing rings.	AR32.50-P-0020LF
		Record plug	Fig 5
68	Remove rpm sensors at steering knuckles		AR42.30-P-0712LF
69	Remove electrical connector of front brake wear indicator at right brake caliper		AR42.10-P-0070LF
70	Release and disconnect electrical connectors of left and right suspension strut	Engine 176 in model 217, 222 except code 487 (Active Body Control (ABC))
			AR32.25-P-1017LFB
71	Unclip electric lines at left and right steering knuckle
72	Unclip bracket of electric lines at left and right spring link	Engine 176 in model 217, 222 with code M005 (Vehicles with 4MATIC/all- wheel drive)
			AR33.15-P-0170LF
73	Unclip electric lines at left and right suspension strut	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))
74	Unclip brackets of electric lines of left and right side at front axle carrier	Engine 176 in model 217, 222 with code M005 (Vehicles with 4MATIC/all- wheel drive)
75	Secure electric lines of left and right steering knuckle at upper transverse control arms
76	Remove left and right front brake caliper from steering knuckles and secure with connected brake lines in wheel arch		AR42.10-P-0070LF
77	Remove left and right suspension strut at spring links	Engine 176 in model 217, 222 except code 487 (Active Body Control (ABC))	AR32.25-P-1017LFB
		Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))	AR32.25-P-1017LFA
78	Remove upper transverse control arm at left and right steering knuckle		AR33.20-P-0500LF
79	Support front axle carrier with lifting platform and major assembly mount and secure engine-transmission unit to prevent slipping and falling down with a tensioning strap		AR33.10-P-0100LF
	000 588 03 62 00 Lifting platform		WS01.00-P-0091A
		When doing so ensure that mounting plates are evenly aligned.
80	Remove screws of rear engine crossmember		AR22.10-P-4360OIA
		Never use impact wrench/driver or compressed air tools for screwing in or unscrewing the screw/bolts. Threads will otherwise be damaged. :  Replace screws of rear engine crossmember.
81	Unscrew bolts (81)	Under no circumstances use impact wrenches or pneumatic tools to unscrew/screw in bolts (81). Threads will otherwise be damaged. :  Replace bolts (81).
		Bolt/nut, front mounting console to front axle carrier	*BA33.10-P-1003-01P
82	Unscrew bolts (82)
Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
		Under no circumstances use impact wrenches or pneumatic tools to remove/screw in screws (82). Threads will otherwise be damaged. :  Replace bolts (82).
		Screw/bolt, front axle carrier at front to longitudinal member	*BA33.10-P-1001-01P
		Screw/bolt, front axle carrier at rear to longitudinal member	*BA33.10-P-1002-01P
83	Lower radiator package, engine with transmission and front axle carrier	The engine and transmission must not bump into body panels or major assemblies, crush lines or hoses or subject these to tension. Damage will occur otherwise. Two helpers required.
84	Secure left and right steering knuckle against tilting outwards using a tensioning strap
85	Install in the reverse order
86	Check engine oil level; correct if necessary
			AP18.00-P-1812SKI
87	Fill and bleed active body control (ABC)	Engine 176 in model 217, 222 with code 487 (Active Body Control (ABC))
			AR32.50-P-0021SX
88	Perform wheel alignment check		AR40.20-P-0200LF
89	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
90	Carry out an engine test run, checking the engine for proper operation and leaktightness
91	Install all lower engine compartment linings		AR61.20-P-1105LF
92	Install engine compartment covers over jump-start connection, washer fluid reservoir of windshield washer system and service connection of air conditioning system
93	Install upper engine cover

Fig 1: Identifying Hand Pump (210 589 00 71 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Hose Clamp Pliers (003 589 03 37 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Set Of Protective Covers (001 589 06 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Set Of Protective Covers (001 589 11 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Pressure Hose (119 589 04 63 00)

Courtesy of MERCEDES-BENZ USA