2021-2025 Audi A4, A5, S4, S5, RS 5 Steering Squeak TSB

Audi has released Technical Service Bulletin (TSB) 48 24 74 2055733/5 to address a common issue of squeaking noises originating from the intermediate steering shaft's rubber boot. This TSB applies to various 2021-2025 Audi models, including the A4, A4 allroad, A5, S4, S5, and RS 5. The bulletin, last revised on September 16, 2024, supersedes an earlier TSB, Group 48 number 23-43, dated June 29, 2023.

Owners experiencing an Audi steering squeak may find this information helpful in understanding the cause and potential resolution for their vehicle.

Symptoms

Owners typically report a distinct squeaking noise from the steering column. This noise is most noticeable when steering or when slowly turning the steering wheel fully in one direction. The sound may also intensify in higher temperatures or after extended driving periods.

Diagnosis and Trigger Conditions

Workshop findings indicate that the squeaking noise originates from the sealing sleeve or the steering column opening on the bulkhead. The technical background confirms that the steering shaft rests on the cone of the sealing sleeve due to incorrect positioning of the sealing sleeve's lip in the bulkhead, often exacerbated by unfavorable component tolerances. This issue is not related to the steering column adjustment being set in the lower range, though this was noted in some cases.

Repair Procedure Summary

Technical Service Bulletin 48 24 74 2055733/5 outlines a specific procedure to resolve the Audi steering squeak. The repair involves repositioning the intermediate steering shaft and sealing boot. Technicians should refer to the detailed instructions in Elsa, specifically the Repair Manual, Chassis >> 48 Steering >> Steering Column >> Steering Intermediate Shaft, Removing and Installing section.

The general steps include:

1. Loosening the connections and bolts that secure the steering shaft to the steering column.
2. Loosening the bolt connections on the sealing boot and pushing it as far as possible upwards (along the Z-axis), then retightening these connections.
3. Pushing the connection that secures the steering shaft to the steering column as far as possible, holding it at the joint, and then securing it with new bolts as specified in ETKA.

Required Parts and Tools

For this repair, technicians will need fasteners, bolts, nuts, and screws as required by the repair manual. Specific part numbers should be checked with the Parts Department and/or ETKA for the latest information and parts bulletins.

Warranty Information

For vehicles still under warranty, claims for this repair should be submitted in accordance with the Audi Warranty Policies and Procedures Manual. The Service Number for this operation is 4816, with a Damage Code of 0020. The labor operation for repositioning the intermediate steering shaft is 4816 4999, allotted 30 labor time units (TU). Diagnostic time and road test allowances are 0 TU. The claim comment should reference TSB 2055733/5.

Important Warnings

Owners should be aware that if their vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only. The repair may not be covered by Audi, and costs could be incurred by the owner.

Source: NHTSA ID: 11009363