22-ST-005H
Service Bulletin Details
Public Details for: 22-ST-005H
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.
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Models from 2022
2022 HYUNDAI IONIQ |
2022 HYUNDAI IONIQ 5 |
2022 HYUNDAI KONA |
2022 HYUNDAI KONA ELECTRIC |
2022 HYUNDAI PALISADE |
Models from 2021
2021 HYUNDAI IONIQ ELECTRIC |
2021 HYUNDAI IONIQ HYBRID |
2021 HYUNDAI KONA |
2021 HYUNDAI KONA ELECTRIC |
2021 HYUNDAI PALISADE |
2021 HYUNDAI SONATA HYBRID |
Models from 2020
Models from 2019
Models from 2018
Models from 2017
GROUP NUMBER STEERING Technical Service Bulletin SUBJECT: DATE 22-ST-005H MODEL(S) APRIL 2022 Multiple C-MDPS WORM SHAFT BEARING NOISE THIS TSB SUPERSEDES 21-ST-003H TO REMOVE THE SONATA (DN8A) VEHICLES. SEPARATE TSB HAS BEEN ISSUED FOR DN8A VEHICLES. A 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: 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 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 – 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 C-MDPS WORM SHAFT BEARING NOISE SUBJECT: Parts Information: PART NAME PART NUMBER 2 1 SMALL BEARING KIT PART DESCRIPTION PHOTO 1. 2. 3. 4. 56359-L1AAAFFF 3 End cover assy Sliding damper Bearing Paper stick 4 NOTE: Sonata Hybrid (DN8 HEV) requires the use of the end cover (part #1). SST Information: PART NAME PART NUMBER MDPS SMALL BEARING REMOVAL TOOL 0K563-L2100FFF MDPS SMALL BEARING MOUNTING TOOL 0K563-L2200FFF PHOTO NOTE: All dealers were sent one of each tool at the launch of this TSB in October 2021. TSB #: 22-ST-005H Page 2 of 11 SUBJECT: SUBJECT: C-MDPS WORM SHAFT BEARING NOISE Warranty Information: MODEL OP CODE OPERATION ELANTRA (AD/ADA) ELANTRA GT (PD) KONA (OS) KONA EV (OS EV) IONIQ (AE EV) IONIQ HYBRID/PLUG-IN (AE HEV/PHEV) SMALL SANTA FE/XL (NC) 56352F00 BEARING VELOSTER (FS) REPLACEMENT SONATA (LFA) SONATA HYBRID/PLUG-IN (LF HEV/PHEV) SONATA HYBRID (DN8 HEV) PALISADE (LX2) TSB #: 22-ST-005H OP TIME CAUSAL PART 0.6 M/H 56359L1AAAFFF NATURE CAUSE CODE CODE Q57 ZZ6 Page 3 of 11 SUBJECT: C-MDPS WORM SHAFT BEARING NOISE SUBJECT: Service Procedure: 1. 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. • MDPS Motor To hear an example of the bearing noise, refer to the link or QR code below. https://youtu.be/22PI3hAEfnk A 2. 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 20ST-001H-2, Column-Mounted MDPS Repair Information (or current TSB related to partial C-MDPS Repairs) for additional information. 3. Ensure the wheels are straight and the steering wheel is level. 4. Record the customer’s AM, FM, and SXM radio preset stations. TSB #: 22-ST-005H Page 4 of 11 SUBJECT: C-MDPS WORM SHAFT BEARING NOISE SUBJECT: 5. Disconnect the negative (-) battery terminal. NOTICE 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. 6. 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. 7. 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. TSB #: 22-ST-005H Page 5 of 11 SUBJECT: C-MDPS WORM SHAFT BEARING NOISE SUBJECT: 8a. ALL EXCEPT DN8 HEV Remove the plug (B). Reuse the plug during reassembly. Plug Tightening Torque B lb-ft • 28.2-35.5 kgf.m • 3.9-4.9 N.m • 38.3-48.1 8b. DN8 HEV Remove the plastic cover (C) by breaking the six cover tabs with pliers. NOTICE Use the supplied plastic cover during reassembly. C Ensure cover snaps into place and is flush with the housing. TSB #: 22-ST-005H Page 6 of 11 SUBJECT: C-MDPS WORM SHAFT BEARING NOISE SUBJECT: 9. Remove the anti-rattle plug (D). Anti-Rattle Plug Tightening Torque lb-in • 86.4-112.8 lb-ft • 7.2-9.4 D kgr.m • 1.0-1.3 N.m • 9.8-12.8 10. Remove the anti-rattle spring (E). NOTICE Keep the anti-rattle spring free of debris after removal. Reuse the spring during reassembly. 11. E Remove the slide pin (F). NOTICE Keep the slide pin free of debris after removal. Reuse the slide pin during reassembly. TSB #: 22-ST-005H F Page 7 of 11 SUBJECT: SUBJECT: 12. C-MDPS WORM SHAFT BEARING NOISE Remove the sliding damper (G) and discard. G 13. 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. b b c a TSB #: 22-ST-005H Page 8 of 11 SUBJECT: C-MDPS WORM SHAFT BEARING NOISE SUBJECT: 14. Use the supplied paper stick to remove the excess grease. 15. Remove the bolt (H) from the MDPS small bearing mounting tool. This bolt will be used to locate the tool on the MDPS housing. H NOTICE After completing the bearing installation procedure, thread the bolt back into its original position. 16. Insert the new, small bearing into the bearing holder. 17. 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. TSB #: 22-ST-005H H I Page 9 of 11 SUBJECT: C-MDPS WORM SHAFT BEARING NOISE SUBJECT: 18. 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 NOTICE Note the small torque values to seat the bearing. Only use hand tools. Electric tools may damage the bearing during assembly. 19. 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 OK Bearing is seated properly. The end of the worm shaft is protruding. Not OK Bearing is not seated properly. The end of the worm shaft is flush with the bearing. lb-ft • 3.69 kgf.m • 0.51 N.m • 5.0 NOTICE 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. TSB #: 22-ST-005H Page 10 of 11 SUBJECT: SUBJECT: 20. C-MDPS WORM SHAFT BEARING NOISE Install the new sliding damper. Align the hole on the side of the sliding damper (J) with the anti-rattle plug boss (I). I Align this side with the hole with the plug boss. 21. Reinstall parts in the reverse order of removal. 22. Reconnect the negative battery cable after all the components have been reinstalled to the vehicle. 23. If necessary, program the customer’s AM, FM, and SXM radio preset stations. 24. The service procedure is now complete. TSB #: 22-ST-005H J Not this side. Page 11 of 11 SUBJECT: