2021 Audi Q5/SQ5 Parking Brake Malfunction TSB

Symptoms

Owners of 2019-2021 Audi Q5 and SQ5, and 2020-2021 Q5 e quattro vehicles may experience a specific warning message. The primary symptom is a "Parking brake malfunction message displayed in the instrument cluster." This indicates a potential problem with the electronic parking brake system, which can impact the vehicle's ability to engage or disengage the parking brake properly.

Fault Codes / DTCs

When an Audi Q5 parking brake malfunction occurs, a workshop diagnostic scan may reveal specific Diagnostic Trouble Codes (DTCs) stored in the ABS control unit J104 (address word 0003). These codes pinpoint the nature of the electrical error:

• DTC C10BD01: Right parking brake motor electrical error
• DTC C10BC01: Left parking brake motor electrical error

Important Warnings

Technicians performing this repair must adhere to a critical instruction to ensure proper function and prevent further issues:

• Do not separate the parking brake motor from the caliper. The motor is an integrated component of the rear caliper assembly and should not be detached.

Repair Procedure Summary

Audi Technical Service Bulletin 2066568/1, issued on March 21, 2022, outlines the repair process for the Audi Q5 parking brake malfunction. The recommended service involves replacing the entire rear caliper assembly, which includes the integrated parking brake motor (V282 and/or V283). The procedure begins with replacing the rear caliper assembly according to the ELSA repair manual, specifically under the path Chassis >> Brake Systems >> Rear Brake >> Parking Brake. After replacing the necessary components, technicians must install the new parts and follow all additional steps outlined in ELSA/GFF (Guided Functions and Fault Finding) to ensure proper integration and functionality. Finally, the vehicle is released after confirming the repair is complete and the parking brake system is operating correctly.

Required Tools or Parts

For this repair, specific parts and tools are necessary. Technicians should always consult their Parts Department and/or ETKA (Electronic Parts Catalog) for the latest information and correct part numbers. The required components include:

• Fasteners, Bolts, Nuts, and Screws: These are to be used as needed, per the specifications in the repair manual.
• Brake caliper housing with servomotor: One or two units may be required, depending on whether the right (V282) or left (V283) parking brake motor, or both, are affected. The quantity is listed as 01/02 in the bulletin.

Warranty Information

This repair, addressing the Audi Q5 parking brake malfunction, is covered under Audi's warranty program for eligible vehicles. The claim type is 110, applicable for vehicles up to 48 months or 50,000 miles. For Certified Pre-Owned (CPO) vehicles, the claim type G10 applies, which requires verification of owner eligibility. If the vehicle falls outside these warranty parameters, this Technical Service Bulletin 2066568/1 serves as informational guidance only, and the repair would not be covered under warranty. The service number for this procedure is 4663, with a damage code of 0040. Labor operations include Rear brake carrier remove + reinstall (labor code 4615 1950 and 4615 2050), with specific Standard Repair Times (SRT) to be referenced. Diagnostic time, identified as GFF (Guided Functions and Fault Finding) with code 0150 0000, is allotted a maximum of 40 Time Units (TU) based on the diagnostic protocol. Road tests, both prior to and after the service procedure, are listed with No allowance and 0 TU. All warranty claims submitted for payment must adhere to the Audi Warranty Policies and Procedures Manual and are subject to review or audit.

Source: NHTSA ID 10209248