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Remove/Install Steering Column Tube - AR46.10-P-0400MFA

Model 118, 177, 243, 247 

MODIFICATION NOTES

27.05.2019 Method modified. Operation step 9.  
G15491921Courtesy of MERCEDES-BENZ USA
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVINGINSTALLING Remove/install     
1 Move steering column tube (1) forward and upward.    
2 Remove steering column tube module control unit (N80).   AR54.25-P-2802MFA
3 Remove trim at bottom for instrument panel or driver's side.   AR68.10-P-1501MFA
4 Release and disconnect electrical connector (2) and remove air duct (3).    
5 Unclip knee bolster (4). Model 118, 177, 243, 247
except code 294 (Knee air bag)
INSTALLATION IMPORTANT When replacing the steering column tube (1), the knee bolster (4) must be replaced.
IMPORTANT The plastic carrier plate of the knee bolster (4) remains on the steering column tube (1).
 
6 Remove driver knee air bag. Model 118, 177, 243, 247
with code 294 (Knee air bag)
 
      AR91.60-P-0200MFA
7 Disconnect steering coupling.   AR46.10-P-8000-01MFA 
    TORQUE SPECIFICATION Clamp screw, steering coupling to rack-and-pinion steering *BA46.10-P-1001-01H 
    SPECIAL TOOL Retainer device Fig 1
8 Release and disconnect electrical connector (5).    
9 Remove screws (11, 12, 13, 14) in reverse numerical order. TORQUE SPECIFICATION Bolt, jacket tube to cross member *BA46.10-P-1001-03I 
10 Pull steering column tube (1) opposite to the direction of travel, move out of catch hooks (7) on left and right and remove steering column tube (1). INSTALLATION IMPORTANT Make sure that the steering column tube (1) inserts correctly into the catch hooks (7) on left and right.  
11 Transfer electric steering lock control unit (N26/5). If the steering column tube (1) is replaced.  
    Model 118, 177, 247
with code 426 (Automatic dual-clutch transmission, 8-speed)
AR46.10-P-0920MFA 
12 Install in the reverse order.    
  Concluding tasks     
13 Update Vehicle Documentation (VeDoc). If the steering column tube (1) is replaced.  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA
STEERING SHAFT

Number Designation Model 118 Model 177
BA46.10-P-1001-01H Clamp screw, steering coupling to rack-and-pinion steering Nm 28 28
STEERING SHAFT

Number Designation Model 243 Model 247
BA46.10-P-1001-01H Clamp screw, steering coupling to rack-and-pinion steering Nm 28 28
JACKET TUBE

Number Designation Model 118 Model 177
BA46.10-P-1001-03I Bolt, jacket tube to cross member Nm 28 28
JACKET TUBE

Number Designation Model 243 Model 247
BA46.10-P-1001-03I Bolt, jacket tube to cross member Nm 28 28
Fig 1: Identifying Retainer Device (129 589 01 21 00)
G12078799Courtesy of MERCEDES-BENZ USA