TSB_CHA111

GROUP
MODEL
CHA
2018-2021MY
Applicable Models
with C-MPDS
NUMBER
DATE
111
October 2021
TECHNICAL SERVICE BULLETIN
SUBJECT:
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
This bulletin provides the procedure to replace the small bearing of the Column Motor Driven Power Steering
(C-MDPS) unit on the vehicles listed below, which may exhibit an abnormal noise when steering left and right.
This may be caused by foreign substances in the MDPS worm shaft small bearing. On some vehicles when
the steering wheel is rotated a scraping noise can be heard originating from the lower bearing on the Worm
Gear Small Bearing and does not affect the steering effort. Follow the procedure outlined in this publication
to replace the C-MDPS worm shaft small bearing with one from a different manufacturer.
Note: Refer to Video below for an example of Worm Shaft Bearing Noise.
Video: Example of Worm Shaft Bearing Noise
C-MDPS System
Model
Cadenza
Forte
Model Year
Production Date Range
YG
2018-2021
July 11, 2017 through October 15, 2020
BDm
2019-2021
July 9, 2018 through July 28, 2021
YD
YDm
K5
DL3a
2018
2021
DE
Niro
Optima
DE EV
Soul
May 25, 2017 through July 27, 2018
March 27, 2020 through December 15, 2020
July 24, 2017 through May 31, 2021
2018-2021
December 5, 2018 through May 20, 2021
DE PHEV
September 26, 2017 through May 19, 2021
JF
May 10, 2017 through April 5, 2018
JFa
JF HEV
2018-2020
JF PHEV
Sorento (Uma)
July 25, 2017 through April 30, 2018
UMa
PS
PS EV
April 18, 2017 through June 23, 2020
July 11, 2017 through October 28, 2019
July 11, 2017 through May 30, 2019
2018-2020
2018-2019
March 31, 2017 through November 4, 2020
April 3, 2017 through December 24, 2018
July 3, 2017 through September 28, 2018
A printed copy is for reference only; publication information can be updated at any time.
Page 2 of 9
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
Replacement Procedure:
1.
Turn the steering wheel so that the front wheels
are facing straight ahead.
2.
Disconnect the negative (-) battery terminal.
3.
Remove the driver’s side knee airbag (A) by
referring to the “Restraint → Airbag Module →
Knee
Airbag
(KAB)
Module
→
Repair
procedures” chapter in the applicable Shop
Manual on KGIS.
CAUTION
To prevent injuries from accidental
inflation of the airbag, place the
removed airbag module in a safe
A
place with the cover side facing up.
4.
Disconnect and lower the power steering ECU
(B) as shown. If necessary, remove the ECU to
access the bearing location.
B
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA111 Multiple Models October 2021
Page 3 of 9
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
5.
DL3a (shown): Remove the end cover (C).
PS/PS EV: Remove the cover plate.
All except DL3a and PS/PS EV: Remove the
cover and plate.
Model
6.
C
Item to Remove
DL3a
End Cover
PS/PS EV
Cover Plate
All others
Cover & Plate
Loosen the 5mm hex plug (D) and then remove
the anti-rattle plug assembly (E).
Note: The anti-rattle plug assembly may also be
called an anti-rattle spring or ARS.
D
E
7.
Remove the sliding damper (F) using a
screwdriver.
•
For PS/PS EV, remove the O-ring.
F
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA111 Multiple Models October 2021
Page 4 of 9
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
8a.
Engage the MDPS small bearing remover SST
(0K563 L2100) to disconnect the bearing.
MDPS Small Bearing
Removal Video
8b.
Remove the small bearing (G).
G
9.
Remove the existing grease around the area
where the small bearing was installed using the
paper stick provided in the Small Bearing Kit.
 NOTICE
If the old grease is not removed, it
may cause an abnormal noise while
steering.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA111 Multiple Models October 2021
Page 5 of 9
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
10.
Insert the new small bearing (G) into the MDPS
Small
Bearing
Mounting
Tool
SST
(0K563 L2200).
G
11.
Fasten the mounting tool SST to the anti-rattle
plug assembly opening in the C-MDPS housing
with the bolt, and hand tighten.
12.
Install the small bearing as shown using a
torque wrench.
Tightening torque for Small Bearing:
2.2 lb.ft (3.0 N.m) or less
CAUTION
To
prevent
damaging
the
small
bearing, do NOT use an electric tool.
Visually check the condition of the
anti-rattle
plug
assembly
after
installation. Refer to Video above, and
the OK and NG photos at right.
MDPS Small Bearing
Installation Video
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA111 Multiple Models October 2021
Page 6 of 9
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
13.
Reinstall the sliding damper (F) as shown.
E
• The slots in the damper (F) should face
toward the anti-rattle plug assembly (E) as
shown (OK).
• If damper is installed in the wrong direction
(NG), this may cause abnormal noise or
stiffness when steering.
F
Slots in Damper face toward
anti-rattle plug assembly.
Slots in Damper face away
from anti-rattle plug assembly.
14.
Reinstall the anti-rattle plug assembly, inserting
the sliding pin (H) in the direction shown.
Tightening torque for Anti-Rattle
Plug Assembly:
7.2 – 9.4 lb.ft (9.8 – 12.8 N.m)
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA111 Multiple Models October 2021
H
Page 7 of 9
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
15.
Install the parts as specified below for each model.
•
DL3a, PS/PS EV: Replace the cover with a new one from the Small Bearing Kit.
•
All except DL3a and PS/PS EV: Reuse the existing cover.
DL3a
Bearing (Φ19)
Replace
Parts
Sliding Damper
End Cover
Reuse
Parts
N/A
16.
Reinstall all removed parts.
17.
Test drive vehicle to confirm proper operation,
PS/PS EV
Bearing (Φ19)
O-Ring
All Others
Bearing (Φ19)
Sliding Damper
Cover Plate
N/A
Cover and
Plate
and no abnormal noise while steering.
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA111 Multiple Models October 2021
Page 8 of 9
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
AFFECTED VEHICLE RANGE:
Model
Cadenza
Forte
Model Year
Production Date Range
YG
2018-2021
July 11, 2017 through October 15, 2020
BDm
2019-2021
July 9, 2018 through July 28, 2021
YD
2018
YDm
K5
DL3a
2021
DE
Niro
Optima
Soul
May 25, 2017 through July 27, 2018
March 27, 2020 through December 15, 2020
July 24, 2017 through May 31, 2021
DE EV
2018-2021
December 5, 2018 through May 20, 2021
DE PHEV
September 26, 2017 through May 19, 2021
JF
May 10, 2017 through April 5, 2018
JFa
JF HEV
2018-2020
JF PHEV
Sorento
July 25, 2017 through April 30, 2018
UMa
PS EV
July 11, 2017 through October 28, 2019
July 11, 2017 through May 30, 2019
2018-2020
PS
April 18, 2017 through June 23, 2020
2018-2019
March 31, 2017 through November 4, 2020
April 3, 2017 through December 24, 2018
July 3, 2017 through September 28, 2018
REQUIRED TOOL:
Tool Name
MDPS Small Bearing
Removing Tool
MDPS Small Bearing
Mounting Tool
Tool Number
0K563 L2100
0K563 L2200
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA111 Multiple Models October 2021
Figure
Page 9 of 9
REPLACEMENT OF MOBIS C-MDPS SMALL BEARING
REQUIRED PART:
Part Name
Part Number
Figure
Comments
Qty.
• DL3a: Replace End
Cover with new part*
56359 L1AAAFFF
Bearing (Φ19)
Sliding Damper
End Cover
• All models except
1
DL3a and PS/PS EV:
Reuse existing
Cover and Plate*
Paper Stick
Small Bearing
Kit
56359 B3AAAFFF
Bearing (Φ19)
Sliding Damper
Cover Plate
For PS/PS EV Only*
1
Paper Stick
*Refer to Replacement Procedure for more details on which parts to replace/reuse for each model.
WARRANTY INFORMATION:
N Code: Q55 C Code: ZZ2
Model
Claim
Type
Causal P/N
Qty.
Repair
Labor Op
Op
Replacement
Description
Code
Time
P/N
Qty.
YG,
YD/YDm,
BD/BDm,
56359
DL3a,
Use Column
DE EV/HEV/PHV,
JF/JFa/JFE,
UM/UMa
L1AAAFFF
Assembly Part
W
No. by using
VIN Look-up
Replacement
0
of C-MDPS
Small Bearing
56352F01
1
0.6
M/H
on EPC
PS, PS EV
56359
B3AAAFFF
1
Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.
TSB: CHA111 Multiple Models October 2021