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Home >> Mercedes Benz >> 2016 >> C350e >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission - 205 Chassis - 1 Of 2 >> Testing & Repair >> Remove/Install Intelligent Servo Module - AR27.19-P-0550LWA

Remove/Install Intelligent Servo Module - AR27.19-P-0550LWA

Transmission 722.9 in model 205 with engine 274 

Transmission 722.9 in model 205 with engine 276 

Transmission 722.93 in model 205 with engine 177 

Shown on transmission 722.90 

G13023139Courtesy of MERCEDES-BENZ USA
Fig 1: Gear Selector Intelligent Servo Module (DIRECT SELECT) Components Location - Transmission 722.9 In Model 205 With Engine 274, 276 (Shown On Transmission 722.90)
G13023140Courtesy of MERCEDES-BENZ USA
  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 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
NOTES Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Move selector lever to position "N"    
2 Release parking brake    
3 Disconnect ground line from battery   AR54.10-P-0003LW
NOTES Notes on battery   AH54.10-P-0001-01A
4 Remove lower center engine compartment paneling and rear engine compartment paneling   AR61.20-P-1105LW
5 Remove reinforcement (2) Transmission 722.9 (except 722.96) in model 205 with engine 274
Transmission 722.9 (except 722.96) in model 205 with engine 276
Transmission 722.93 in model 205 with engine 177
 
    TORQUE SPECIFICATION Bolt, front reinforcement/bracket to frame floor assembly *BA61.10-P-1002-01L 
6 Release and disconnect electrical connector (3) on the intelligent servo module for DIRECT SELECT (A80)    
7 Release rear engine crossmember (4) Transmission 722.9 in model 205 with engine 274
Transmission 722.9 in model 205 with engine 276
AR22.10-P-4360LWB
  Transmission 722.93 in model 205 with engine 177 NOTES
Under no circumstances should impact wrenches/drivers or pneumatic tools be used to remove or screw in screws/bolts. Otherwise, the threads may be damaged.
AR22.10-P-4360MNA
8 Mark position of drive shaft relative to flange of transmission with a color and remove drive shaft Transmission 722.9 (except 722.96) in model 205 with engine 274
Transmission 722.9 (except 722.96) in model 205 with engine 276
Transmission 722.93 in model 205 with engine 177
 
      AR41.10-P-0040-01LW
REFER TO SHOP-MADE TOOLS Drift for releasing the fitting sleeves in the flexible couplings   WF58.50-P-4110-01A
    TORQUE SPECIFICATION Flex disk or joint flange at transmission/rear axle differential or propeller shaft *BA41.10-P-1001-01L 
    SPECIAL TOOL Counterholder Fig 2
9 Lower transmission carefully NOTES
Do not crush any components or place under tension. The engine must not make contact with the front axle carrier or the major assemblies compartment partition.
Otherwise damage will occur.
 
10 Remove bolts (5) from intelligent servo module for DIRECT SELECT (A80)    
NOTES Notes on threaded connections with aluminum screws/bolts   AH00.00-P-0006-01RM
    INSTALLATION IMPORTANT : Replace bolts (5).
TORQUE SPECIFICATION Standard bolt/hexagon-spacer bolt, shift module (ISM) to transmission housing
*BA27.40-P-1021-01A 
11 Remove intelligent servo module for DIRECT SELECT (A80) with vent hose (6) If the intelligent servo module for DIRECT SELECT (A80) is to be reused, do not detach the vent hose (6).
Otherwise, it may lead to leaks and damage on the intelligent servo module for DIRECT SELECT (A80).
INSTALLATION IMPORTANT : The positions of the range selector shaft (7) and the intelligent servo module for DIRECT SELECT (A80) must match.
If necessary, turn the range selector shaft (7) accordingly.
 
    SPECIAL TOOL Assembly tool Fig 3
12 Replace bleed hose (6) When reusing the intelligent servo module for DIRECT SELECT (A80)  
13 Turn range selector shaft (7) of the transmission counterclockwise as far as the end stop to position D (arrow) When reusing the intelligent servo module for DIRECT SELECT (A80)
IMPORTANT In its as-delivered state, a new intelligent servo module for DIRECT SELECT (A80) is set to position "D" (arrow).
 
INSPECT Check     
14 Check radial shaft sealing ring (8) of the range selector shaft (7) If leaky or damaged  
    Replace the radial shaft sealing ring (8). AR27.40-P-0220A 
15 Install in the reverse order    
16 Read out fault memory and erase if necessary    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
17 Read out fault memory, delete and perform initial startup of intelligent servo module for DIRECT SELECT (A80) When reusing the intelligent servo module for DIRECT SELECT (A80)  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
HOUSING

Number Designation Transmission 722.9
BA27.40-P-1021-01A Standard bolt/hexagon-spacer bolt, shift module (ISM) to transmission housing Stage 1 Nm 4
Stage 2   90
PROPELLER SHAFT

Number Designation Model 205
BA41.10-P-1001-01L Flex disk or joint flange at transmission/rear axle differential or propeller shaft Self-locking nut   Nm 68
Direct threaded connection Stage 1 Nm 60
Stage 2 ∠° 90
FRAME FLOOR ASSEMBLY

Number Designation Model 205
BA61.10-P-1002-01L Bolt, front reinforcement/bracket to frame floor assembly M10x20 Nm -
M10x28 Nm 30
Fig 2: Identifying Counterholder (176 589 00 40 00)
G10132845Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Assembly Tool (722 589 03 09 00)
G07494441Courtesy of MERCEDES-BENZ USA