Remove/Install Automatic Transmission With Torque Converter - AR27.10-P-0500MNL

Transmission 725.0 in model 217, 222 with engine 176 except code M005 (Vehicles with 4MATIC/all-wheel drive) 

24.06.2022	Special tool 001 589 65 09 00 changed to 177 589 00 03 00.	Operation step 21, 34.
15.06.2022	Only turn engine at the center Bolt of the crankshaft in the direction of engine rotation using the specified box wrench. Otherwise, damage to the engine or even failure of the engine may occur.	AR27.20-P-0001-01EWM

Fig 1: Automatic Transmission Components Location - Transmission 725.0 In Model 222 With Engine 176 Except Code M005

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	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.  Moving parts can pinch, crush or, in extreme cases even sever extremities.	No parts of the body or limbs should be within the operating area of mechanical components when moving components.	AS00.00-Z-0009-01A
	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 due to handling of transmission oil. Health risk caused by swallowing transmission oil	Wear protective gloves, protective clothing and safety glasses. Do not pour transmission oil into beverage bottles.	AS00.40-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
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
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on self-locking nuts and Bolts		AH00.00-P-0001-01KOA
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
	Notes on automatic transmission		AH27.19-P-0001-01NKB
	Remove
1	Shift the transmission (1) into neutral position.
2	Release parking brake.
3	Disconnect the ground line for the on-board electrical system battery (G1).		AR54.10-P-0003LF
4	Secure vehicle on vehicle lift.		AR00.60-P-0100CW
5	Remove bottom engine compartment paneling.		AR61.20-P-1105LF
6	Loosen catalytic converters.	Left catalytic converter	AR49.20-P-0101MNL
		Right catalytic converter	AR49.20-P-0102MNL
7	Release starter wiring harness from starter wiring harness holder at top.
8	Remove upper screw of starter wiring harness holder.
9	Remove oil lines.		AR27.55-P-0600MNK
10	Raise and secure rack-and-pinion steering.		AR46.20-P-0600LF
11	Remove lower screw of starter wiring harness holder.
12	Remove alternator wiring harness holder from transmission (1).
13	Remove rear propeller shaft.		AR41.10-P-0050LF
14	Remove right holder (6).
15	Disconnect ground line (2) of transmission (1).
16	Unhook ground line (2) from transmission (1).
17	Remove heat shield from transmission (1).
18	Release and disconnect electrical connector of transmission (1).
19	Remove transmission wiring harness holder from torque converter housing.
20	Remove cover (3).
21	Remove torque converter (10) from drive plate (13).		AR27.20-P-0001-01EWM
		Only turn engine at the center Bolt of the crankshaft in the direction of engine rotation using the specified box wrench. Otherwise, damage to the engine or even failure of the engine may occur. Do not use an impact wrench or compressed air tool to remove the Bolts.
		Otherwise, the threaded unions (14) in the drive plate (13) will be damaged.
		Ring wrench	Fig 4
		Long wedge	Fig 2
22	Remove starter from transmission (1), place to one side with connected lines and fasten.		AR15.30-P-7100MNL
		Secure starter against falling down. Otherwise damage will occur.
23	Remove rear engine carrier from underbody.		AR22.10-P-4360OIA
24	Remove screws (19).	Set of flexible head wrenches	Fig 3
25	Remove transmission (1) with torque converter (10).	Secure the torque converter (10) to prevent it from dropping down. Otherwise damage will occur.
26	Remove torque converter (10).	If necessary.	AR27.20-P-0050EWM
27	Remove corrosion from crankshaft.		AR03.20-P-1000-01A
		Multi-purpose paste	*BR00.45-Z-1009-06A
		Assembly cleaner	*BR00.45-Z-1028-04A
28	Check threaded unions (14) in drive plate (13).	If damaged or loose threaded unions (14) are present: ↓ Install a new clutch plate (13).
			AR03.30-P-8003MNL
	Install
29	Insert torque converter (10).	After removing the torque converter (10).	AR27.20-P-0050EWM
30	Install transmission (1) with torque converter (10).	While doing so, align the bores of the torque converter (10) with the threaded unions (14) in the drive plate (13).
31	Tighten screws (19).	Screw/Bolt, transmission to engine	*BA27.10-P-1001-04H
		Set of flexible head wrenches	Fig 3
32	Install rear engine carrier at underbody.		AR22.10-P-4360OIA
33	Release mounting of starter and mount starter onto transmission (1).		AR15.30-P-7100MNL
34	Mount torque converter (10) onto drive plate (13).		AR27.20-P-0001-01EWM
		Only turn engine at the center Bolt of the crankshaft in the direction of engine rotation using the specified box wrench. Otherwise, damage to the engine or even failure of the engine may occur. Do not use an impact wrench/driver or compressed air tool to screw in the Bolts. Otherwise, the threaded unions (14) in the drive plate (13) will be damaged.
		Screw, torque converter/rotor to drive plate/star-shaped drive plate	*BA27.20-P-1001-01D
		Ring wrench	Fig 4
		Long wedge	Fig 2
35	Install cover (3).
36	Attach transmission wiring harness holder at torque converter housing.	M6	*BA00.10-P-1002-01A
37	Plug in electrical connector of transmission (1) and lock.
38	Install heat shield at transmission (1).	Screw/Bolt, heat shield to oil pan	*BA27.10-P-1009-04H
39	Hook ground line (2) onto transmission (1).
40	Connect ground line (2) to transmission (1).	Bolt, ground line to transmission housing	*BA27.10-P-1024-04H
41	Install right holder (6).	Bolt, exhaust system bracket to transmission	*BA49.10-P-1005-02N
42	Install rear propeller shaft.		AR41.10-P-0050LF
43	Attach alternator wiring harness holder at transmission (1).	M6	*BA00.10-P-1002-01A
44	Install lower screw of starter wiring harness holder.	M6	*BA00.10-P-1002-01A
45	Release locking clip and lower rack-and-pinion steering.		AR46.20-P-0600LF
46	Install oil lines.		AR27.55-P-0600MNK
47	Install upper screw of starter wiring harness holder.	M6	*BA00.10-P-1002-01A
48	Secure starter wiring harness at starter wiring harness holder at top.
49	Attach catalytic converters.	Left catalytic converter	AR49.20-P-0101MNL
		Right catalytic converter	AR49.20-P-0102MNL
50	Connect ground line of on-board electrical system battery (G1).		AR54.10-P-0003LF
51	Check and correct transmission oil level.		AR27.00-P-0270EWN
52	Connect diagnostic system, read out fault memory and clear if necessary.
			AD00.00-P-2000-04B
53	Perform transmission adaptation with vehicle diagnosis system.	After replacement or repair of transmission (1).
			AD00.00-P-2000-04B
54	Reset data on service life of torque converter lockup clutch with the vehicle diagnosis system.	After replacement or repair of torque converter (10).
			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
55	Perform engine test run and check transmission (1) for proper operation and leak tightness.
56	Install lower engine compartment lining.		AR61.20-P-1105LF
57	Disconnect vehicle from vehicle lift.		AR00.60-P-0100CW

Fig 2: Identifying Long Wedge (115 589 03 59 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Set Of Flexible Head Wrenches (001 589 81 09 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Ring Wrench (177 589 00 03 00)

Courtesy of MERCEDES-BENZ USA