2021-2022 Audi Q8 Dynamic Steering Noise TSB

Symptoms of Dynamic Steering Noise

Owners of 2021-2022 Audi Q8 vehicles may experience "cracking or creaking noises when steering that come from the front end near the steering column, intermediate steering shaft, steering rack, and/or the steering wheel." This specific type of Audi Q8 dynamic steering noise is the focus of Technical Service Bulletin 48 21 03 2063546/1, issued on June 9, 2021.

Technical Background

According to Audi, the underlying cause of these noises is often related to the dynamic steering actuator. These noises can arise due to manufacturing tolerances within the actuator itself.

Diagnosis Procedure

To accurately identify the source of the Audi Q8 dynamic steering noise, technicians are advised to follow a specific diagnostic procedure outlined in TSB 2063546/1:

1. Disable the Actuator: The first step involves removing the fuse for the dynamic steering, identified as J792 (address word 001B). This action effectively disables the dynamic steering actuator.
2. Test for Noise: After disabling the actuator, the vehicle should be tested to see if the cracking or creaking noises persist during steering.
   • If the noise stops: This indicates that the dynamic steering actuator is indeed the cause of the previously heard noises.
   • If the noise continues: If the noises are still present, the issue lies with other components within the steering system, and further investigation outside the scope of this TSB is required.

Important Notes for Owners

• Production Solution: As of the publication date of this TSB, a permanent production solution for the dynamic steering actuator noise is still "under development" by Audi. This means that while the TSB helps diagnose the issue, a final repair strategy may not yet be available.
• Warranty: This TSB explicitly states that warranty coverage is "Not applicable." Owners should discuss potential costs with their service center.
• Parts Information: All part and service references within TSB 2063546 are subject to change. It is recommended to always check with your Audi Parts Department or ETKA for the latest information and any required replacement fasteners, bolts, nuts, and screws during a repair.

Source: NHTSA ID 10197898