GROUP
STEERING

Technical Service Bulletin
SUBJECT:

DATE

NUMBER
22-ST-005H-1
MODEL(S)

JUNE 2022

Multiple

C-MDPS WORM SHAFT BEARING NOISE

THIS TSB SUPERSEDES 22-ST-005H TO INCLUDE INFORMATION REGARDING A NEW
BEARING KIT, A NEW TOOL, AND APPLICABLE MODELS.
Description: Certain vehicles may develop a bearing noise within the Motor Driven Power Steering
(MDPS) column worm shaft assembly. If bearing noise is heard, follow the procedure in this bulletin to
replace the worm shaft bearing.

“626” Bearing Kit
56359-L1AAAFFF

“608” Bearing Kit
56358-AAAAAFFF

Applicable Vehicles:
2017 – 2020 MY Elantra (AD, VIN beginning with “KMH”)
2017 – 2018 or 2020 MY Elantra (ADA, VIN beginning with “5NP”) with production dates between
January 01, 2017 and February 28, 2018 or between November 07, 2019 and May 03, 2020
2021 – 2022 MY Elantra (CN7/CN7A)
2021 – 2022 MY Elantra (CN7 HEV)
2018 – 2020 MY Elantra GT (PD)
2017 – 2022 MY Ioniq Hybrid/Plug-In (AE HEV/PHEV)
2017 – 2021 MY Ioniq Electric Vehicle (AE EV)
2018 – 2022 MY Kona (OS)
2019 – 2022 MY Kona EV (OS EV)
2020 – 2022 MY Palisade (LX2)
2017 – 2019 MY Santa Fe/XL (NC)
2017 – 2019 MY Sonata (LFA)
2017 – 2019 MY Sonata Hybrid/Plug-In (LF HEV/PHEV)
2020 – 2022 MY Sonata (DN8, VIN beginning with “KMH”)
2020 – 2021 MY Sonata Hybrid (DN8 HEV)
2017 MY Veloster (FS)

NOTICE
•
•

2018 – 2020 MY Elantra (ADA, VIN beginning with “5NP”), with production dates between
March 01, 2018 and November 06, 2019, please refer to TSB 22-ST-004H.
2020 – 2022 MY Sonata (DN8A) produced from SOP to December 30, 2021, please refer to
TSB 22-ST-003H.

Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair

SUBJECT:

C-MDPS WORM SHAFT BEARING NOISE

Parts Information:
MODEL
ELANTRA (AD/ADA)
ELANTRA GT (PD)
KONA (OS)
KONA EV (OS EV)
IONIQ (AE EV)
IONIQ HEV/PHEV
(AE HEV/PHEV)
SANTA FE/XL (NC)
VELOSTER (FS)
SONATA (LFA)
SONATA HEV/PHEV
(LF HEV/PHEV)
PALISADE (LX2)

PART NAME

PART NUMBER

PHOTO / DESCRIPTION
1

2

3

“626”
BEARING KIT

4

56359-L1AAAFFF

1.
2.
3.
4.

SONATA HEV
(DN8 HEV)
Jan 29, 2020 to Oct 23,
2020

End cover assy
Sliding damper
626 Bearing, OD: 19mm
Paper stick

2

1

ELANTRA (CN7/CN7A)
ELANTRA HEV
(CN7 HEV)
SONATA (DN8)
SONATA HEV
(DN8 HEV)
Oct 23, 2020 to Jun 30,
2021

3

“608”
BEARING KIT

56358-AAAAAFFF

4

1. End cover assy
2. Sliding damper
3. 608 Bearing, OD: 22mm
4. Paper stick
NOTE1: Part 1 is only required for vehicles equipped with a plastic end cover.
NOTE2: The 608 bearing is larger than the 626 bearing.
NOTE3: Sonata HEV (DN8 HEV) part application is split by production date. If the DN8 HEV’s vehicle
production date is October 23, 2020, verify the required bearing kit by measuring the bearing within
the MDPS housing.

NOTICE
The included parts are specific to each kit. Do not mix parts. Using the incorrect parts may
damage the parts and/or MDPS housing.

TSB #: 22-ST-005H-1

Page 2 of 14
SUBJECT:

C-MDPS WORM SHAFT BEARING NOISE

SUBJECT:

SST Information:
PART NAME

PART NUMBER

PHOTO

DESCRIPTION

Use for both 626 and
608 bearings.
MDPS
SMALL
BEARING
REMOVAL
TOOL

“626”
MDPS
SMALL
BEARING
MOUNTING
TOOL

All dealers were sent
one of each tool at
the launch of the
original TSB in
October 2021.

0K563-L2100FFF

For 626 bearing only.
All dealers were sent
one of each tool at
the launch of the
original TSB in
October 2021.

0K563-L2200FFF

“608”
MDPS
SMALL
BEARING
MOUNTING
TOOL

For 608 bearing only.
All dealers were sent
this tool at the launch
of this TSB, 22-ST005H-1, in Junef
2022.

09563-IB200

NOTICE
Ensure the correct bearing mount tool is used. Using the incorrect tool can damage the
bearing and/or MDPS housing.

TSB #: 22-ST-005H-1

Page 3 of 14
SUBJECT:

SUBJECT:

C-MDPS WORM SHAFT BEARING NOISE

Warranty Information:
MODEL

OP CODE

ELANTRA (AD/ADA)
ELANTRA GT (PD)
KONA (OS)
KONA EV (OS EV)
IONIQ (AE EV)
IONIQ HEV/PHEV
(AE HEV/PHEV)
SANTA FE/XL (NC)
VELOSTER (FS)
SONATA (LFA)
SONATA HEV/PHEV
(LF HEV/PHEV)
PALISADE (LX2)
SONATA HEV
(DN8 HEV)
Production Date Range:
Jan 29, 2020 to Oct 23,
2020

OPERATION

OP
TIME

CAUSAL
PART

NATURE CAUSE
CODE
CODE

56359L1AAAFFF
(“626” kit)

56352F00

SMALL
BEARING
REPLACEMENT

ELANTRA (CN7/CN7A)
ELANTRA HEV (CN7 HEV)
SONATA (DN8)

0.6
M/H

Q57

ZZ6

56358AAAAAFFF

SONATA HEV
(DN8 HEV)
Production Date Range:
Oct 23, 2020 to Jun 30,
2021

(“608” kit)

NOTE1: Sonata HEV (DN8 HEV) causal part number is split by vehicle production date. If the DN8
HEV’s vehicle production date is October 23, 2020, use the applicable causal part.
NOTE2: Normal Warranty Applies

TSB #: 22-ST-005H-1

Page 4 of 14
SUBJECT:

C-MDPS WORM SHAFT BEARING NOISE

SUBJECT:

Service Procedure:
Procedures are the same for both bearing kits.
1.

2.

Determine if bearing noise comes from the
MDPS column and housing.
•

Start the engine and turn the steering
wheel left and right.

•

Listen for the bearing noise occurring
from the worm shaft housing (A). This
noise will be located near the CMDPS motor on the steering column.

•

To hear an example of the bearing
noise, refer to the link or QR code
below.
https://youtu.be/22PI3hAEfnk

MDPS Motor

A

Replace the worm shaft small bearing if
noise is heard.
If noise is not heard in this location, refer to
the shop manual for detailed diagnostic and
repair service procedures or refer to the
most current Column-Mounted MDPS Repair
Information TSB for additional information.

3.

Ensure the wheels are straight and the
steering wheel is level.

TSB #: 22-ST-005H-1

Page 5 of 14
SUBJECT:

C-MDPS WORM SHAFT BEARING NOISE

SUBJECT:

4.

Removal of the MDPS assembly is not
required to replace the small bearing located
in the MDPS steering column and housing.
Remove the crash pad lower panel following
the procedures in the applicable shop
manual.

Crash Pad Lower Panel

Body (Interior and Exterior) > Crash Panel >
Crash Pad Lower Panel
Knee Air Bag

Check if vehicle is equipped with a Knew Air
Bag
If repairing a vehicle without a Knee Air