2021-2022 Audi Q5/SQ5 Front Axle Rattling Noise TSB

Audi has issued Technical Service Bulletin (TSB) 2063040/1, dated April 20, 2021, to address customer complaints of rattling noises from the front axle in certain 2021-2022 Audi Q5 and SQ5 vehicles. This bulletin provides guidance for technicians on diagnosing and repairing the root cause of the Audi Q5 front axle rattling noise.

Symptoms

Owners of affected vehicles may experience "Rattling noises are coming from front axle." This symptom is typically noticeable during vehicle operation.

Technical Background

The TSB explains that the brake retaining pins, which secure the brake pads within the caliper, can become loose. This loosening is often a result of vibrations encountered at the front of the vehicle during normal driving. When these pins move out of their correct position in the brake caliper, they can generate the reported rattling noise.

Important Warnings

Audi specifies two critical points for owners and technicians regarding this TSB:

• "If the vehicle is outside any warranty, this Technical Service Bulletin is informational only." This means that if your vehicle's warranty has expired, the repair described in this bulletin may not be covered by Audi.
• Regarding labor operations, a specific note states: "This LO can only be included if pads are being replaced." This indicates that the labor for installing retaining pins and applying glue is typically bundled with a brake pad replacement service.

Repair Procedure Summary

To resolve the Audi Q5 front axle rattling noise, technicians are instructed to ensure the brake retaining pin remains permanently seated when replacing brake pads. A key step involves applying a drop of locking fluid to the barrel spring of the retaining pin. This locking fluid helps to secure the pin in place and prevent it from becoming loose again due to vibrations.

Required Parts and Tools

The following parts and materials are specified for this repair:

• Fasteners, Bolts, Nuts, and Screws: As needed per the Repair Manual (See ETKA/ELSA).
• Set of Braking Pads: If necessary (See ETKA, Quantity 01).
• Retaining Pins: If necessary (See ETKA, As needed).
• Locking Fluid: Part number D 154100A1 (Quantity 0.1).

Warranty Information

Warranty claims related to TSB 2063040/1 are processed under specific conditions:

• Claim Type: 110 (up to 48 Months/50,000 Miles) or G10 for CPO Covered Vehicles (owner verification required).
• Service Number: 4739.
• Damage Code: 0010.
• Labor Operations:
  • Retaining Pins installation + Glue application: 4739 9999 (20 Time Units).
  • Pads for front disc; Remove + Reinstall: 4636 2050 (See SRT with associated operations).
  • Wheel removed + reinstalled: 4405 2000 (See SRT with associated operations).
• Diagnostic Time: GFF (No allowance), Road test prior to service (No allowance), Road test after service (0121 0004, 10 Time Units).
• Claim Comment: As per TSB #2063040/1.

All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

NHTSA ID: 10191003