2021 Audi Q5 / SQ5 Brake Pedal Squeak TSB

Symptoms

Owners of certain 2021 Audi Q5 and SQ5 models may experience a distinct squeaking noise when pressing the brake pedal. This sound can be consistently reproduced and originates from the Brake Servo Unit, also known as the Brake Booster. Specifically, the noise is attributed to the brake servo unit rubber boot.

Diagnosis

When a customer reports a squeaking noise during braking, technicians are advised to confirm the complaint. The noise should be reproducible and clearly identified as coming from the Brake Servo Unit (Brake Booster). This confirms the presence of the 2021 Audi Q5 brake pedal noise issue.

Important Warnings

Audi Technical Service Bulletin 2067321/1 explicitly states that this bulletin does not apply to PHEV (Plug-in Hybrid Electric Vehicle) models. Furthermore, if a Brake Servo Unit is replaced under warranty, an audio file of the original complaint must be recorded and uploaded to the DOC-IT database, including the VIN. Replaced components will be debited if this audio evidence is not provided.

Repair Procedure Summary

To address the 2021 Audi Q5 brake pedal noise, the repair involves replacing the Brake Servo Unit. The process requires technicians to first record an audio file of the squeaking complaint. This audio file, along with the vehicle's VIN, must then be attached to the DOC-IT database. Following this, the Brake Servo Unit is to be replaced according to the detailed instructions found in the ELSA repair manual, specifically under "Chassis >> Brake System >> 47 Hydraulic Components >> Brake Booster/Brake Master Cylinder >> Brake Booster Removing/Installing."

Required Parts

Specific part numbers for the Brake Servo Unit (Brake Booster) and any necessary fasteners, bolts, nuts, and screws are not listed directly in the bulletin. Technicians must consult ETKA and/or ELSA for the most current information and part numbers required for the repair.

Warranty Information

Warranty claims for this brake pedal noise issue fall under Claim Type 110 for vehicles up to 48 months or 50,000 miles. For Audi Certified Pre-Owned (CPO) vehicles, Claim Type G10 applies, with owner verification required. The Service Number for this repair is 4770, and the Damage Code is 0020. The labor operation for replacing the brake servo unit is 4770 1900. Diagnostic time is GFF (0150 0000), and a 10 TU allowance (0121 0004) is provided for a road test after the service procedure. No allowance is given for a road test prior to the service. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual, referencing TSB 2067321/1.

NHTSA ID: 10214477