2023-2024 BMW Steering Wheel Sticks in Center Position TSB

Symptoms of a Sticking Steering Wheel

Owners of certain 2023-2024 BMW models may experience a temporary, slightly noticeable increase in steering forces when turning the steering wheel away from the center position. This typically occurs after prolonged straight-ahead driving, such as on a highway. The sensation is described as a slight, brief resistance, which resolves once the initial resistance is overcome.

This issue is precisely what the Service Information Bulletin (SIB) 32 04 25 addresses, focusing on the "steering wheel sticks in center position" complaint.

Underlying Cause

BMW has identified the cause of the 2023-2024 BMW steering wheel sticks in center position issue as increased friction within the steering components. This friction can arise from different manufacturers of the Electric Power Steering (EPS) system used in various BMW models.

Affected Components and Manufacturers

The Electric Power Steering (EPS) units in the affected vehicles are supplied by two main manufacturers: JTEKT and Thyssen Krupp Presta AG (TKPS).

• JTEKT EPS: Found in BMW G01 (X3 Sports Activity Vehicle) and G02 (X4 Sports Activity Coupe) models.
• Thyssen Krupp Presta AG (TKPS) EPS: Used in BMW G29 (Z4 Roadster) models.
• Both JTEKT or TKPS EPS: Installed in BMW G20 (3 Series Sedan), G22 (4 Series Coupe), G23 (4 Series Convertible), G26 (4 Series Gran Coupe), and G42 (2 Series Coupe) models.

Identifying the specific EPS manufacturer installed in a vehicle is crucial for diagnosis and repair, and can be done using ISTA control unit functions.

Diagnostic and Defect Codes

While no standard OBD-II Diagnostic Trouble Codes (DTCs) are listed, the bulletin provides specific BMW defect codes associated with the potential repair actions:

• 3231053100: Associated with the replacement of the lower steering spindle with a double joint.
• 3231212100: Linked to the replacement of the steering column.
• 3213021400: Pertains to the replacement of the Electric Power Steering (EPS) unit itself.

Repair Procedure Summary

Service Information Bulletin (SIB) 32 04 25 outlines a diagnostic and repair process that varies based on the vehicle model and the EPS manufacturer. The general approach involves a step-by-step replacement of steering components until the "steering wheel sticks in center position" issue is resolved.

For G26 BEV Models:

If equipped with JTEKT EPS:

1. Replace the lower steering spindle with double joint. If the fault persists, proceed to the next step.
2. Replace the steering column. If the fault persists, proceed to the next step.
3. Replace the EPS unit.

If equipped with TKPS EPS:

1. Release the tension of the EPS by loosening and then replacing/retightening the mounting bolts according to repair instruction REP32 13 572. A wheel alignment check is also required. If the fault persists, proceed.
2. Replace the lower steering spindle with double joint. If the fault persists, proceed.
3. Replace the steering column. If the fault persists, proceed.
4. Replace the EPS unit.

For G26 ICE and All Other Models:

If equipped with JTEKT EPS:

1. Replace the steering column. If the fault persists, proceed to the next step.
2. Replace the EPS unit.

If equipped with TKPS EPS:

1. Release the tension of the EPS by loosening and then replacing/retightening the mounting bolts as per REP32 13 572. A wheel alignment check is also required. If the fault persists, proceed.
2. Replace the mechanical steering column. If the fault persists, proceed.
3. Replace the EPS unit.

Each step involves re-evaluating the vehicle to confirm if the fault has been rectified before proceeding to the next, more extensive, repair.

Important Warnings

BMW states that "THIS REPAIR IS MOBILE FRIENDLY," indicating that the necessary work can be performed with relative ease, potentially without requiring a full service bay setup.

Owner Action

If you experience your 2023-2024 BMW steering wheel sticks in center position, it is recommended to contact your authorized BMW service center. Describe the symptoms you are experiencing, referencing BMW Service Information Bulletin (SIB) 32 04 25. The dealer will perform the necessary diagnostic steps to identify the specific EPS manufacturer and component causing the increased friction, and then proceed with the appropriate repair as outlined in the bulletin.

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Source: NHTSA ID 11018514