2017-2021 Audi Q7 / SQ7 Distorted Front Speaker Audio TSB

Revision History

Technical Service Bulletin 91 21 23 2064182/2 was published on August 19, 2021. This bulletin supersedes the previous Technical Service Bulletin Group 91 number 21-19, which was dated August 5, 2021. The revision introduced a corrected header (addressing an Elsa display issue) and added specific claim types to the warranty section. The initial publication of this information was on August 5, 2021, under TSB 2064182/1.

Symptoms

Owners of 2017-2021 Audi Q7 and SQ7 vehicles, particularly those equipped with the Bang & Olufsen sound system, may experience several audio-related issues. The primary symptom reported by customers is "Distorted audio from low range speakers in one, or both front doors." This can manifest as a noticeable "front door speaker rattle," a general vibration, or overall "poor audio reproduction" emanating from the vehicle's front door speakers.

Diagnosis / Trigger Conditions

Audi workshops have identified that the original speaker with part number 4M0 035 415 is the root cause of the distortion and related audio problems. This TSB, identified as 91 21 23 2064182/2, specifically targets this component as the source of the customer concern, leading to the Audi Q7 distorted audio issue. The problem is linked to the design of the original speaker.

Repair Procedure Summary

If a 2017-2021 Audi Q7 or SQ7 is experiencing the described audio issues and workshop findings confirm speaker part number 4M0 035 415 as the culprit, the repair involves replacing the affected speakers. The procedure requires technicians to replace both the left and right front door speakers. It is crucial that both replacement speakers carry the updated part number 4M0 035 415 A to ensure the fix is effective and prevents recurrence of the Audi Q7 distorted audio problem. The new part number signifies an improved design, which is the production solution for this issue.

Required Parts and Tools

The specific part required for this repair is:

• Part Number: 4M0035415A
• Description: Woofer
• Quantity: 02

Technicians are advised to always check with their Parts Department and/or ETKA system for the latest information and any parts bulletins before ordering.

Warranty Information

This repair is covered under Audi's warranty for vehicles up to 48 months or 50,000 miles, whichever comes first, under Claim Type 110. For Certified Pre-Owned (CPO) vehicles, coverage is available under Claim Type G10, provided the owner is verified. If a vehicle is outside of these warranty parameters, this Technical Service Bulletin 2064182/2 serves as informational guidance for diagnosis and repair.

Warranty claims should use Service Number 9140 and Damage Code 0040. The labor operation for