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Home >> Mercedes Benz >> 2023 >> CLS450 >> Repair and Diagnosis >> Steering >> Steering Linkage >> Steering - 257 Chassis >> Testing & Repair >> Remove/Install Steering Coupling - AR46.10-P-8000FR

Remove/Install Steering Coupling - AR46.10-P-8000FR

Model 257, 290 

MODIFICATION NOTES

05.02.2019 "Change position of steering gear" added. Step 5  
Fig 1: Steering Coupling Component Location - Model 257
G14548990Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Deactivate easy entry and exit feature. Model 257, 290
with code 275 (Memory Package (driver's seat, steering column and mirror))
 
2 Turn rack-and-pinion steering (5) into center position (front wheels in straight-ahead position) and fix steering wheel in place using holding device. NOTES The steering wheel must not be turned when the steering coupling (1) has been removed.
Otherwise the clock spring contact will be destroyed.
 
    SPECIAL TOOL Retainer device Fig 3
3 Remove center and rear section of engine compartment lining. Model 290
Model 257
AR61.20-P-1105FRX
AR61.20-P-1105FR
WARNING 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
4 Disconnect steering coupling (1) on lock (2) from steering shaft (3). Separate and connect steering coupling AR46.10-P-8000-01FR 
    Turn steering gear to center position
INSTALLATION IMPORTANT Move steering gear to center position and connect steering coupling (1) to steering shaft (3).
AR46.20-P-0500-01FR 
    SPECIAL TOOL Engine mount wrench set Fig 2
5 Remove bolt (4) from steering coupling (1).    
Notice Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
    IMPORTANT Change position of steering gear until screw (4) can be pull out of steering coupling (1).
TORQUE SPECIFICATION Bolt, steering coupling to rack-and-pinion steering
*BA46.10-P-1002-01N 
6 Remove steering coupling (1) from rack-and-pinion steering (5). IMPORTANT Pay attention to installation position.
INSTALLATION IMPORTANT The guide on the dust cap (6) must be seated without tension in the groove of the steering coupling (1) (arrow).
 
7 Install in the reverse order    
STEERING SHAFT

Number Designation Model 257 Model 290
BA46.10-P-1002-01N Bolt, steering coupling to rack-and-pinion steering Nm 24 24
Fig 2: Identifying Engine Mount Wrench Set (001 589 01 16 00)
G12816349Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Retainer Device (129 589 01 21 00)
G13658454Courtesy of MERCEDES-BENZ USA