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Home >> Kia >> 2019 >> Optima S >> Repair and Diagnosis (Single Page) >> Steering >> Steering Column >> Motor Driven Power Steering System (Except HEV) >> Repair Procedures >> A/S Repair Procedures >> (4) MDPS Common Problems
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(4) MDPS Common Problems

Case 1 Case 2 Case 3
G12916780Courtesy of KIA MOTORS AMERICA, INC.
G12916781Courtesy of KIA MOTORS AMERICA, INC.
G12916782Courtesy of KIA MOTORS AMERICA, INC.
Multifunction switch noise Clock spring noise DAB/Wire noise
Replace multifunction switch Replace clock spring Rearrange and replace DAB
Case 4 Case 5 Case 6
G12916783Courtesy of KIA MOTORS AMERICA, INC.
G12916784Courtesy of KIA MOTORS AMERICA, INC.
G12916785Courtesy of KIA MOTORS AMERICA, INC.
Multifunction switch noise MB nut mount defect M10 nut mount defect
Replace multifunction switch Retighten nut Retighten nut
Case 7 Case 8
G12916786Courtesy of KIA MOTORS AMERICA, INC.
G12916787Courtesy of KIA MOTORS AMERICA, INC.
Cowl top bolt mount defect Cowl bar nut mount defect
Retighten cowl top bolt Replace clock spring
CAUTION: Cautions to be taken when handling the MDPS (Motor Driven Power Steering)
  • Failure occurs due to internal damage because of the drop of and shock and excessive external force on the new partial component.

    → Be cautious of shock on the partial component and replace the damaged part (due to drop, etc.) with a new one.

  • When fastening the steering, excessive impact may result in twisting the center point of the torque sensor.
  • When removing/installing the connector the wiring may be damaged (deformed) by excessive external force.
  • Be cautious when storing and replacing the partial components under the abnormal temperature and humidity conditions.