2025 Hyundai Ioniq 5 MGDU Noise Service Campaign 25-01-056H

Hyundai has launched Service Campaign 25-01-056H to address a potential issue with the Motor-Gear Drive Unit (MGDU) in certain 2025 Hyundai Ioniq 5 vehicles. This campaign, identified as TDW, focuses on replacing the front or rear MGDU assembly to resolve a specific noise concern. Owners searching for information about 2025 Hyundai Ioniq 5 MGDU noise should be aware of this important service action.

Important Warnings

Hyundai has issued critical instructions regarding this service campaign:

• Dealers "must perform this service campaign on all affected vehicles prior to customer retail delivery and whenever an affected vehicle is in the shop for any maintenance or repair."
• "To avoid any potential damage to IONIQ vehicles, this service campaign can only be performed at IONIQ certified dealers."

Symptoms

Owners of affected 2025 Hyundai Ioniq 5 vehicles may notice a noise originating from the MGDU housing. This noise is typically caused by a missing wave washer within the differential gear assemblies of the Motor and Reduction Gear Motor-Gear Drive Unit.

Diagnosis and Trigger Conditions

To determine if a specific vehicle requires this repair, technicians must perform a VIN lookup using Hyundai's WebDCS system. Under the "Vehicle Information" screen, they will check the "Campaign Not Performed" and "Campaign Description" fields for open campaigns. If an operation code like 50DV10R0 (for front MGDU) or 50DV10R1 (for rear MGDU) is listed, the vehicle is subject to this service campaign.

Repair Procedure Summary

The repair procedure for the 2025 Hyundai Ioniq 5 MGDU noise involves several steps, to be performed by an IONIQ certified dealer:

1. Vehicle Identification: Confirm which MGDU (front or rear) needs replacement by checking the VIN on WebDCS and identifying the specific operation code (50DV10R0 for front, 50DV10R1 for rear).
2. High Voltage Shut-off: Perform necessary high voltage shut-off procedures as outlined in the shop manual.
3. MGDU Removal: Remove the identified front or rear Motor-Gear Drive Unit assembly.
4. MGDU Installation: Install the new motor and reduction gear system.
5. Air Tightness Inspection: Conduct an air tightness inspection of the newly installed MGDU.
6. Coolant System Bleeding: Perform the air bleed for the coolant system.
7. Motor Resolver Calibration: Initialize the Motor Resolver Calibration.
8. Digital Documentation: Take a picture of the air tightness inspection test screen using STUI and upload it.
9. Battery Reconnection: Reconnect the high voltage and auxiliary batteries.
10. Verification: Place the vehicle in READY mode and verify normal operation.

Required Parts

The following parts may be required for the MGDU assembly replacement:

• Motor-Gear Drive Unit, FRT: Part Number 44000-18FA1 (Qty: 1)
• Clip (Front Only): Part Number 49557-F2000 (Qty: 2 for front replacement)
• Nut-Castle (Front Only): Part Number 49551-4T000 (Qty: 2 for front replacement)
• Motor-Gear Drive Unit, RR: Part Number 44000-18FB2 (Qty: 1)
• Bolt-Flange (Rear Only): Part Number 11406-10406K (Qty: 2 for rear replacement)
• Clip-Front Axle Diff Side (Rear Only): Part Number 14630-02910 (Qty: 1 for rear replacement)
• Pink Antifreeze/Coolant: Part Number 00232-19098 (Qty: 2 gallons)

Warranty Information

Claims for this service campaign (25-01-056H) should be submitted as "Campaign" type. If other parts are found to need replacement during the campaign and are under warranty, a separate claim should be submitted. For out-of-warranty parts, a Prior Approval request for goodwill consideration is necessary. The repair process includes requirements for repair validation photos and the return of incident parts to the Warranty Technical Center (WTC).

Owner Action

If you own a 2025 Hyundai Ioniq 5, especially if you experience any unusual noise from the drive unit, contact an IONIQ certified Hyundai dealer. They can check your vehicle's VIN to determine if it is affected by Service Campaign 25-01-056H and arrange for the necessary inspection and repair.

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Source: NHTSA ID: 11022374