Column-Mounted MDPS Repair Information (22-ST-002H)

WARNING: This page is about the Elantra Eco, which is a different variant/trim than selected.

Publication date: 2022-01-11
Reference number: 22-ST-002H
Supersedes refnos: 18-ST-002, 18-ST-002-1, 19-ST-001H, 20-ST-001H, 20-ST-001H-1, 20-ST-001H-2

C-MDPS WORM SHAFT BEARING NOISE

TECHNICAL SERVICE BULLETIN

Reference Number(s): 22-ST-004H, Date of Issue: April 12, 2022

HYUNDAI:	2018-2020 Elantra (ADA)
GROUP:	STEERING

Superceded Bulletin(s): 21-ST-002H

RFVISION HISTORY

THIS TSB SUPERSEDES 21-ST-002H TO ADD THE HOW-TO VIDEO QR CODE AND WEB LINK.

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.

Applicable Vehicles:

Certain 2018 - 2020 MY Elantra (ADA, VIN beginning with "5NP"), with production dates between March 01, 2018 and November 06, 2019.

NOTE: Certain 2017 - 2018 or 2020 - 2021 MY Elantra (ADA, VIN beginning with "5NP") with production dates between January 01, 2017 and February 28, 2018 or between November 07, 2019 and June 30, 2021, please refer to TSB 21-ST-003H, C-MDPS Worm Shaft Bearing Noise.

PARTS INFORMATION

PART NAME	PART NUMBER	PHOTO	PART DESCRIPTION
SMALL BEARING KIT	56359-L1AAAFFF		End cover assy Sliding damper Bearing Paper stick

NOTE: Discard part #1. Only the Sonata and Sonata Hybrid (DN8a and DN8 HEV) requires the use of the end cover.

SST INFORMATION

PART NAME	PART NUMBER	PHOTO
MDPS SMALL BEARING REMOVAL TOOL	0K563-L2100FFF
MDPS SMALL BEARING MOUNTING TOOL	0K563-L2200FFF

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

WARRANTY INFORMATION

MODEL	OP CODE	OPERATION	OP TIME	CAUSAL PART	NATURE CODE	CAUSE CODE
ELANTRA (ADA)	00DA05R2	Small Bearing Replacement	0.6 M/H	56351-G3AAAFFF	Q57	ZZ6

NOTE: Submit Claim on Campaign Claim Entry Screen.

NOTE: If a part is found that is not covered by this TSB in need of replacement while performing the repair for this TSB and the affected part is still under warranty, submit a separate claim using the same Repair Order. If the affected part is out of warranty, submit a Prior Approval Request for goodwill consideration prior to performing the work.

REFERENCE VIDEO

Scan the QR code or use the link below for a reference video of the service procedure.

https://vimeo.com/656456270/c61b9293e9

SERVICE PROCEDURE

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 C-MDPS motor on the steering column.
- To hear an example of the bearing noise, scan the QR code or use the link below.
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 TSB 20-ST-001H-2, Column-Mounted MDPS Repair Information (or current TSB related to partial C-MDPS Repairs) for additional information.
Ensure the wheels are straight and the steering wheel is level.
Record the customer's AM, FM, and SXM radio preset stations.
Disconnect the negative (-) battery terminal.
NOTE: Wait at least 3 minutes before proceeding to ensure voltage is bled off.

Battery Terminal Tightening Torque

Follow the applicable shop manual for battery terminal tightening torque.

CAUTION: Not removing the negative (-) terminal from the battery may result in accidental airbag deployment and possible physical injury.
Removal of the MDPS assembly is not required to replace the small bearing located in the MDPS steering column and housing. Several parts might need to be removed to gain access to the small bearing.
If equipped, carefully remove the driver's knee airbag following the procedures in the applicable shop manual.

Restraint > Airbag Module > Knee Airbag (KAB) Module

CAUTION: The airbag may accidently be deployed and possibly cause physical injury. After removing the knee airbag module, position airbag with the cover facing upward.
After removing the KAB, additional parts might have to be removed to gain access to the small bearing. Follow the applicable shop manual for part removal procedures.
Remove the plug (B).
Reuse the plug during reassembly.

Plug Tightening Torque

lb-ft • 28.2-35.5

kgf.m • 3.9-4.9

N.m • 38.3-48.1
Remove the anti-rattle plug (D).
Anti-Rattle Plug Tightening Torque

lb-in • 86.4-112.8

lb-ft • 7.2-9.4

kgr.m • 1.0-1.3

N.m • 9.8-12.8
Remove the anti-rattle spring (E).
NOTE: Keep the anti-rattle spring free of debris after removal. Reuse the spring during reassembly.
Remove the slide pin (F).
NOTE: Keep the slide pin free of debris after removal. Reuse the slide pin during reassembly.
Remove the sliding damper (G) and discard.
Use the MDPS small bearing removal tool, to remove and discard the bearing.
How to use the tool
1. Insert the ends (a) of the tool into the MDPS housing to grasp the outer race of the bearing.
2. Slowly turn the threaded rod (b) until the tip (c) reaches the center of the bearing and worm shaft.
3. Continue to turn the rod slowly until the bearing is pulled off the worm shaft.
Use the supplied paper stick to remove the excess grease.
Remove the bolt (H) from the MDPS small bearing mounting tool. This bolt will be used to locate the tool on the MDPS housing.
NOTE: After completing the bearing installation procedure, thread the bolt back into its original position.
Insert the new, small bearing into the bearing holder.
Place the tool onto the MDPS housing as shown in the photo in the right. Slide the bolt (H) through the hole and then thread the bolt into the anti-rattle plug boss (I). Tighten the bolt (H) until the tool is firmly held onto the MDPS housing.
Use a torque wrench to slowly seat the bearing into position on the worm shaft.
Bearing Seating Torque

lb-in • 26.52

lb-ft • 2.21

kgf.m • 0.31

N.m • 3.0

NOTE: Note the small torque values to seat the bearing.
Only use hand tools. Electric tools may damage the bearing during assembly.
Remove the tool from the MDPS housing and inspect the bearing.
Ensure the bearing is fully seated and the end of the worm shaft is protruding approximately 1.2mm (0.047 inch).

If the bearing did not seat as shown in the photo, increase the torque setting on the torque wrench and continue to slowly seat the bearing.

Increased Bearing Seating Torque

lb-in • 44.28

lb-ft • 3.69

kgf.m • 0.51

N.m • 5.0

NOTE: If the bearing is removed during this procedure, do not reinstall the bearing as it might be damaged and cause a noise. A new bearing must be used.
Install the new sliding damper. Align the hole on the side of the sliding damper (J) with the anti-rattle plug boss (I).
Reinstall parts in the reverse order of removal.
Reconnect the negative battery cable after all the components have been reinstalled to the vehicle.
If necessary, program the customer's AM, FM, and SXM radio preset stations.
The service procedure is now complete.