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Adjusting steering gear in vehicle - RA46001243230X(46-3230)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Adjusting Steering Gear In Vehicle
G04685974Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Tie rod and drag link Disassemble and assemble on pitman arm (Removing and installing drag link  , Removing and installing tie rod  ).
Support (031) and torque wrench (060) Fix to steering wheel, remove
Friction torque of steering gear Determine by slowly turning the steering wheel from lock to lock several times
Friction torque of steering gear Adjust, by slackening lock nut (50) and turning adjusting screw (45) 1/4 turn in stages direction a = less play = increased friction torque
direction b = more play = reduced friction torque
Tighten lock nut (50), 60 Nm.
Friction torque of steering gear Check again after tightening the lock nut (50) and repeat adjustment, if necessary.
  Adjusting wrench on vehicles with diesel engines 123 589 01 09 00.
  Adjusting wrench on vehicles with gasoline engines 123 589 01 10 00, 123 589 01 03 00.
SET VALUE (NCM)

Total friction torque of steering gear in center position New steering 110-160
Used steering 100-130(1)
(1) On vehicles with airbag 110-140 (without contact spiral)

Special tools 

Fig 2: Identifying Special Tools (123 589 02 21 00)
G04685975Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 3: Identifying Special Tools (126 589 13 63 00)
G04685976Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 4: Identifying Special Tools (123 589 01 09 00)
G04685977Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 5: Identifying Special Tools (123 589 01 10 00)
G04685978Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 6: Identifying Special Tools (123 589 01 03 00)
G04685979Courtesy of MERCEDES-BENZ OF NORTH AMERICA.