2021 Audi Electric Steering Column Adjustment Not Working

Symptoms

Owners of affected 2021 Audi vehicles may notice that the electric steering column adjustment is not functioning correctly, specifically in the vertical direction. This can prevent drivers from properly positioning their steering wheel for comfort and control.

Fault Codes / DTCs

When this issue occurs, a specific Diagnostic Trouble Code (DTC) is typically stored in the vehicle's electronic central control module (BCM 1), also known as J519 (address word 0009).

Diagnosis and Trigger Conditions

The problem is usually confirmed when a customer reports the steering column adjustment is not working vertically, and a workshop can reproduce the customer's complaint. The presence of DTC B14BF01 further confirms the issue, indicating an electrical error with the steering column's vertical adjustment motor.

Repair Procedure Summary

This Technical Service Bulletin (TSB) outlines a multi-step process to resolve the electric steering column adjustment issue, primarily involving a software update and a physical calibration:

1. Software Update: Technicians must first follow the instructions in TSB 2011732 for Software Version Management (SVM) operating procedures. The steering column control module, J866, then needs to be updated using the SVM action code 649S001, as specified in the TSB's software part number table.
2. Initial Function Restoration: After the software update, the electric steering column adjustment function must be restored. This involves applying approximately 40 kg (88 lbs) of upward force to the steering wheel with the knees while simultaneously pressing the steering column adjustment switch upwards in the vertical direction.
3. Adjustment Clearing Procedure: The steering column adjustment unit needs to be cleared by performing up to 50 adjustment cycles in the vertical direction. This process requires a specialized tool kit, T10230, which weighs about 9 kg (20 lbs).
4. Vehicle Preparation: To prepare for the clearing procedure, the steering wheel should be moved as far as possible toward the dashboard, and the driver's seat should be moved all the way back.
5. Tool Setup: The T10230 tool kit is attached to the steering wheel using a small securing strap, taking care not to damage the wheel. A cleaning cloth should be placed underneath the tool for protection. Plastic foil should also be applied to protect the seat from the tool kit.
6. Final Adjustment Cycles: The steering column adjustment is then operated up and down up to 50 times. The weight of the T10230 tool kit creates a current in the adjustment motor, which clears the adjustment unit.

This comprehensive procedure ensures both the software and mechanical components of the electric steering column are correctly calibrated.

Required Tools or Parts

To perform the adjustment clearing procedure, a specific tool is required:

• T10230: Assembly tool. This tool is necessary to simulate the required weight during the steering column adjustment cycles. If this specific tool is unavailable, a similar weight toolbox can be used as an alternative.

Important Warnings

• If your vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only. Any repairs may incur charges.
• The Test Plan is designed to perform the 50 adjustment cycles automatically. However, if the automatic process fails, the technician must manually perform the steps as described in the TSB.

Owner Action

If you are experiencing issues with your 2021 Audi's electric steering column adjustment, particularly if it's not moving vertically, and you suspect a DTC B14BF01, it is recommended to schedule an appointment with an authorized Audi service center. They have the necessary diagnostic tools, software, and specialized equipment like the T10230 tool kit to properly diagnose and resolve the issue according to TSB 48 21 95 2062288/2.

NHTSA ID: 10188597