Remove/install shift shaft radial shaft sealing ring - AR27.40-P-0220A

TRANSMISSION 722.55/9 Transmission with intelligent servo module (ISM) 

Shown on transmission 722.9 

Fig 1: Shift Shaft Radial Shaft Sealing Ring Remove/Install Components - Shown On Transmission 722.9

Courtesy of MERCEDES-BENZ USA

	Risk of death  when touching components on vehicles with high-voltage on-board electrical system	Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not carry out any work on high-voltage on-board electrical systems.	AS54.00-Z-0001-01A
	Remove
1	Remove intelligent servo module (ISM)	TRANSMISSION 722.9 in MODEL 205 with ENGINE 651	AR27.19-P-0550LWB
		TRANSMISSION 722.9 in MODEL 205 with ENGINE 274	AR27.19-P-0550LWA
		TRANSMISSION 722.9 in MODEL 222	AR27.19-P-0550LF
		Model 164	AR27.19-P-0550GZA
		Model 221	AR27.19-P-0550SX
		Model 251	AR27.19-P-0550RT
2	Remove heat shield (3) of left catalytic converter and bracket (2) of lower engine compartment paneling	TRANSMISSION 722.55/9 in MODEL 164, 221, 251 Transmission with intelligent servo module (ISM)
	Clean
3	Clean transmission housing (1) in area of shift shaft (40) and radial shaft sealing ring (20)	Assembly cleaner	*BR00.45-Z-1028-04A
4	Remove oil pan	TRANSMISSION 722.9 Transmission with intelligent servo module (ISM)	AR27.10-P-7030W
		TRANSMISSION 722.55 Transmission with intelligent servo module (ISM)	AR27.10-P-7030GZH
5	Remove bolt (16a) and detach detent plate spring element (16)
6	Remove detent plate clamp bolt (82a) and pull out shift shaft (40)
7	Use suitable tool to pry out radial shaft sealing ring (20)	Make sure that the contact surface in the transmission housing (1) is not damaged. Leaks can occur otherwise.
	Check
8	Check shift shaft (40) for galling and damage; install a new shift shaft if necessary
	Install
9	Drive radial shaft sealing ring (20) all the way into transmission housing (1) using drift (01)	Check radial shaft sealing ring (20) is correctly seated in transmission housing (1). Leaks can occur otherwise.
		Drift	Fig 2
10	Insert shift shaft (40) and screw in clamp bolt for detent plate (82a)	Make sure that the shift shaft (40) is positioned correctly in the detent plate (82).
		Bolt, detent plate to range selector lever	*BA27.40-P-1006-01A
		TRANSMISSION 722.9 Transmission with intelligent servo module (ISM)	*BA27.19-P-1004-01A
11	Mount spring element for detent plate (16) and screw in bolt (16a)	Bolt, leaf spring to transmission housing	*BA27.40-P-1019-01A
		Detent plate spring element bolt to electrohydraulic controller unit	*BA27.19-P-1005-01A
12	Install oil pan	TRANSMISSION 722.55 Transmission with intelligent servo module (ISM)	AR27.10-P-7030GZH
		TRANSMISSION 722.9 Transmission with intelligent servo module (ISM)	AR27.10-P-7030W
13	Install heat shield (3) of left catalytic converter and bracket (2) of lower engine compartment paneling	TRANSMISSION 722.55/9 in MODEL 164, 221, 251 Transmission with intelligent servo module (ISM)
14	Install intelligent servo module (ISM)	TRANSMISSION 722.9 in MODEL 205 with ENGINE 651	AR27.19-P-0550LWB
		TRANSMISSION 722.9 in MODEL 205 with ENGINE 274	AR27.19-P-0550LWA
		TRANSMISSION 722.9 in MODEL 222	AR27.19-P-0550LF
		MODEL 164	AR27.19-P-0550GZA
		MODEL 221	AR27.19-P-0550SX
		MODEL 251	AR27.19-P-0550RT
15	Fill transmission with gear oil	TRANSMISSION 722.9 (except 722.96) Transmission with intelligent servo module (ISM)	AR27.00-P-0270W
		TRANSMISSION 722.96 Transmission with intelligent servo module (ISM)	AR27.00-P-0270SYZ
		TRANSMISSION 722.55 Transmission with intelligent servo module (ISM)	AR27.00-P-0100GZH
	Check
	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
16	Perform engine test run; check transmission housing (1) at separation points and at radial shaft sealing ring (20) for leaks and check that transmission is functioning correctly

Fig 2: Identifying Drift (722 589 02 15 00)

Courtesy of MERCEDES-BENZ USA