Remove/install oil lines of oil cooling for automatic transmission - AR27.55-P-0600CWX

TRANSMISSION 722.96 in MODEL 204, 212, 218 with 4MATIC

Fig 1: Identifying Transfer Case Supply Line With Left/Right Oil Cooling Line

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Oil Lines Of Oil Cooling For Automatic Transmission

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Transfer Case Supply Line, Throttle And Filter Cartridge

Courtesy of MERCEDES-BENZ USA

	Remove/install
		Before starting work the area surrounding the oil cooling lines (7, 8) on the transmission and the supply line (6) on the transfer case must be thoroughly cleaned in the area around the separation points. Even minute particles of dirt in the hydraulic components can result in malfunctions and a total failure of the hydraulic system.
		The right oil cooling line (7) and supply line (6) are securely connected to each other and can therefore only be removed together.
		A restrictor (6a) and a filter cartridge (6b) is fitted in the connection to the transfer case in supply line (6).
	Right-hand oil cooling line (7) with supply line (6)
1	Remove front axle gear propeller shaft	Model 204	AR41.10-P-0070CWX
		Model 212, 218	AR41.10-P-0070EWX
2	Detach retaining clamp (5) of supply line (6) on transmission		*BA27.55-P-1006-01D
3	Detach retaining clamps (10, 12, 14) from engine oil pan		*BA27.55-P-1006-01D
4	Detach double clamp (4) of oil cooling lines (7, 8)		*BA27.55-P-1005-01D
5	Detach retaining clamps (9, 11, 13) from engine oil pan		*BA27.55-P-1006-01D
6.1	Remove front axle shafts	Vehicles with gasoline engine MODEL 204.08/09/28/29/38/98/99, 207.38, 212.08/09/28/29, 218.39/99	AR33.30-P-0620CWX
6.2	Detach steering coupling from rack-and-pinion steering	Vehicles with diesel engine Model 204	AR46.10-P-8000CW
		Model 212, 218	AR46.10-P-8000EW
7	Disconnect oil level switch connector	Vehicles with diesel engine Except model 212 with engine 651
8	Detach front engine mount from front axle carrier	ENGINES 272 in MODEL 204.08 /95 /98	AR22.10-P-1260CWX
		Model 212 with engine 272, 273	AR22.10-P-1260EWS
		Model 204, 212 with engine 276	AR22.10-P-1260FHB
		Model 212, 218 with engine 278	AR22.10-P-1260ELB
		Engine 642	AR22.10-P-1260CWY
		Engine 651	AR22.10-P-1260OMD
9	Attach engine hoist and raise engine	Model 204	AR33.10-P-0105CW
		Model 212, 218	AR33.10-P-0105EW
10	Detach connector (3) of supply line (6) on transfer case	Installation : Replace restrictor (6a) and filter cartridge (6b) and pay attention to correct seat in the supply line (6). Installation : Replace sealing rings.	*BA27.55-P-1007-01D
11	Detach connector (1) of oil cooling line (8) on transmission	Installation : Replace sealing rings.	*BA27.55-P-1002-01D
12	Detach connector (2) of oil cooling line (7) on transmission	Installation : Replace sealing rings.	*BA27.55-P-1002-01D
13	Detach oil cooling line (7) on cooler	Collect automatic transmission fluid which escapes and seal line connections with stop plugs.	AR27.10-P-0501-03CW
		Set of stop plugs	Fig 4
14	Remove oil cooling line (7) with supply line (6)	Do not kink or bend oil cooling line (7) and supply line (6). Otherwise leaks and damage may occur. Collect automatic transmission fluid which escapes and seal line connections with stop plugs. Set of stop plugs	Fig 4
15	Install in the reverse order
	Left oil cooling line (8)
16	Detach front engine mount from front axle carrier	ENGINES 272 in MODEL 204.08 /95 /98	AR22.10-P-1260CWX
		Model 212 with engine 272, 273	AR22.10-P-1260EWS
		Model 204, 212 with engine 276	AR22.10-P-1260FHB
		Model 212, 218 with engine 278	AR22.10-P-1260ELB
		Engine 642	AR22.10-P-1260CWY
		Engine 651	AR22.10-P-1260OMD
17	Attach engine hoist and raise engine	Model 204	AR33.10-P-0105CW
		Model 212, 218	AR33.10-P-0105EW
18.1	Detach pressure line of power steering from bracket on alternator	Vehicles with gasoline engine
18.2	Detach steering coupling from rack-and-pinion steering	Vehicles with diesel engine Model 204	AR46.10-P-8000CW
		Model 212, 218	AR46.10-P-8000EW
19	Detach retaining clamps (10, 12, 14) from engine oil pan		*BA27.55-P-1003-01D
20	Detach double clamp (4) of oil cooling lines (7, 8)		*BA27.55-P-1005-01D
21	Detach oil cooling line (8) from transmission and radiator	Do not kink or bend oil cooling line (8). Otherwise leaks and damage may occur. Collect automatic transmission fluid which escapes and seal line connections with stop plugs.	AR27.10-P-0501-03CW
			*BA27.55-P-1002-01D
		Set of stop plugs	Fig 4
22	Remove oil cooling line (8)
23	Install in the reverse order
24	Check transmission oil level and correct if necessary		AR27.00-P-0270SYZ
	Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
25	Perform engine test run; when doing so, check transmission for oil leaks and that it is functioning correctly

TRANSMISSION OIL COOLING SYSTEM

Number	Designation				Transmission 722.9
BA27.55-P-1002-01D	Bolt, transmission oil line to transmission housing	Banjo bolt	Stage 1	Nm	5
			Stage 2	∠°	90
		Hexalobular bolt		Nm	12
BA27.55-P-1003-01D	Bolt, oil cooler line to engine oil pan			Nm	12
BA27.55-P-1005-01D	Bolt, oil cooling line double clamp to bracket			Nm	8
BA27.55-P-1006-01D	Bolt, oil cooling line double clamp to engine oil pan			Nm	8
BA27.55-P-1007-01D	Oil cooling line/oil supply line on transfer case			Nm	12

Fig 4: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA