22-ST-003H
Service Bulletin Details
Public Details for: 22-ST-003H
Certain 2020-2022my sonata (dn8a) 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 be
Models from 2022
2022 HYUNDAI SONATA |
Models from 2021
2021 HYUNDAI SONATA |
Models from 2020
2020 HYUNDAI SONATA |
GROUP NUMBER STEERING DATE Technical Service Bulletin SUBJECT: 22-ST-003H MODEL(S) APRIL 2022 Sonata (DN8A) SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE Description: Certain 2020-2022MY Sonata (DN8A) 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 2020 – 2022MY Sonata (DN8A) produced from October 22, 2019 to December 30, 2021 Parts Information: PART NAME PART NUMBER 2 1 SMALL BEARING KIT PART DESCRIPTION PHOTO 56359-L1AAAFFF 3 1. 2. 3. 4. End cover assy Sliding damper Bearing Paper stick 4 NOTE: Sonata (DN8A) requires the use of the end cover (part #1). Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service Advisors, Technicians, Body Shop Manager, Fleet Repair SUBJECT: SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE 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 TSB 21-ST-003H in October 2021. NOTE: The tools sent may or may not have part numbers ending in “FFF” (0K563-L2100/0K563L2200). Warranty Information: MODEL OP CODE OPERATION OP TIME CAUSAL PART SONATA (DN8A) 20DA01R0 SMALL BEARING REPLACEMENT 0.6 M/H 56359L1AAAFFF NATURE CAUSE CODE CODE Q57 ZZ6 NOTE 1: Submit claim on Campaign Claim Entry Screen. NOTE 2: If a part that is not covered by this TSB is in need of replacement while performing this TSB, and the affected part is still under warranty, please submit a separate claim using the same repair order. If the part is out of warranty, submit a prior approval request for goodwill consideration prior to performing the work. TSB #: 22-ST-003H Page 2 of 12 SUBJECT: SUBJECT: SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE Service Procedure: 1. Determine if bearing noise comes from the MDPS column and housing. 2. • 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 Replace the worm shaft small bearing if noise is heard. MDPS Motor A 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. 4. Record the customer’s AM, FM, and SXM radio preset stations. TSB #: 22-ST-003H Page 3 of 12 SUBJECT: SUBJECT: 5. SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE Disconnect the negative (-) battery terminal. NOTICE Wait at least 3 minutes before proceeding to ensure voltage is bled off. Battery Terminal Tightening Torque lb-in • 69.6-86.4 lb-ft • 5.8-7.2 ! ! kgf.m • 0.1-1.0 Not removing the negative (-) terminal from the battery may result in accidental airbag deployment and possible physical injury. N.m • 7.8-9.8 6. CAUTION 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 may have to be removed to gain access to the small bearing. Follow the applicable shop manual for part removal procedures. TSB #: 22-ST-003H Page 4 of 12 SUBJECT: SUBJECT: 8. SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE DN8A Remove the plastic cover (B) by squeezing/breaking the six cover tabs with pliers. NOTICE Use the supplied plastic cover during reassembly. B Ensure cover snaps into place and is flush with the housing. 9. Remove the anti-rattle plug (C). Anti-Rattle Plug Tightening Torque C lb-in • 86.4-112.8 lb-ft • 7.2-9.4 kgf.m • 1.0-1.3 N.m • 9.8-12.8 TSB #: 22-ST-003H Page 5 of 12 SUBJECT: SUBJECT: 10. SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE Remove the anti-rattle spring (D). NOTICE Keep the anti-rattle spring free of debris after removal. Reuse the spring during reassembly. D 11. Remove the slide pin (E). NOTICE Keep the slide pin free of debris after removal. Reuse the slide pin during reassembly. TSB #: 22-ST-003H E Page 6 of 12 SUBJECT: SUBJECT: 12. SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE Remove the sliding damper (F) and discard. F TSB #: 22-ST-003H Page 7 of 12 SUBJECT: SUBJECT: 13. SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE 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-003H Page 8 of 12 SUBJECT: SUBJECT: SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE 14. Use the supplied paper stick to remove the excess grease. 15. Remove the bolt (G) from the MDPS small bearing mounting tool. This bolt will be used to locate the tool on the MDPS housing. G 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. TSB #: 22-ST-003H Page 9 of 12 SUBJECT: SUBJECT: 17. 18. SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE 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. I H 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. TSB #: 22-ST-003H Page 10 of 12 SUBJECT: SUBJECT: 19. SONATA (DN8A) C-MDPS WORM SHAFT BEARING NOISE 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 may be damaged and cause a noise. A new bearing must be used. TSB #: 22-ST-003H Page 11 of 12 SUBJECT: SUBJECT: 20. SONATA (DN8A) 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. J Not this side. NOTICE Use the supplied plastic cover during reassembly. Ensure cover snaps into place and is flush with the housing. TSB #: 22-ST-003H Page 12 of 12 SUBJECT: