2021-2023 Audi e-tron Door Panel Noise TSB

This Audi technical service bulletin (TSB), issued on October 14, 2022, compiles various on-car analysis topics for several Audi models, including concerns about Audi e-tron door panel noise. This document serves as a guide for technicians to diagnose and thoroughly document these issues, often requiring the submission of detailed worksheets to the Technical Assistance Center (TAC) before any repair attempts are made. It highlights Audi's focus on data collection to understand and address emerging vehicle problems.

Important Warnings

• Always contact Audi Helpline before attempting any repair related to the topics covered in this bulletin.
• All diagnostic topics have associated worksheets that must be filled out and attached to the TAC ticket.
• Information requested in these worksheets updates frequently; technicians must always use the latest worksheet available on ServiceNet.
• Technicians are instructed to include all requested information in the worksheet upfront when submitting a WEB ticket to TAC.

Symptoms

Owners of various Audi models may experience a range of symptoms, including:

• Low Coolant Warning: On 2020-2021 Audi Q3 models, customers may receive a "low coolant warning in the cluster" even when the coolant level appears full in the reservoir. This issue is noted as not relating to TSB 2061918.
• Active Air Shutter Fault: For 2021-2022 Audi Q7 and Q8 vehicles, the "Check engine lamp is illuminated and DTC P05A000: Active Grille Air Shutter 'A' Stuck is stored in the ECM."
• ACC Sensor Misadjustment: 2022 Audi Q5 owners might see an "ACC warning" shortly after Pre-Delivery Inspection (PDI), specifically with less than 600 miles on the odometer, indicating a misadjusted ACC sensor.
• Boost Pressure Sensor Issues: On 2022 Audi Q3 models, the "Check engine lamp is on" accompanied by various Diagnostic Trouble Codes (DTCs) related to the boost pressure sensor.
• Parking Aid Warning: Both 2022 Audi Q3 and A6 models may display a "Parking aid warning is displayed" shortly after PDI, often due to a disconnected front or rear PDC sensor.
• Door Panel Noise: Owners of 2022-2023 Audi e-tron GT and 2021-2022 Audi A5 models may hear "Noise from front door trim panel while driving or with audio playback." Additionally, 2021-2022 Audi e-tron Quattro and e-tron SB vehicles might experience "Noise from front door loudspeaker grille with music playback or while driving."

Fault Codes / DTCs

This bulletin identifies several Diagnostic Trouble Codes (DTCs) that may be encountered:

Code	Description	Module / Condition
P05A000	Active Grille Air Shutter "A" Stuck	Engine Control Module (ECM)
C110300	Sensor misadjusted	Diagnostic Address 0013 (ACC sensor)
P010600	Manifold Abs.Pressure or Bar.Pressure Range/Performance	Engine
P023600	Turbocharger Boost Sensor (A) Circ. Range/Performance	Engine
P023700	Turbocharger Boost Sensor (A) Circ. Low Input	Engine
P023800	Turbo charger boost sensor (a) circ. high input	Engine
B10F914	Right front center parking aid sensor Open circuit/short circuit to Ground (GND)	Parking Aid
B107B13	Rear parking aid sensor Open circuit	Parking Aid

Diagnosis / Trigger Conditions

Specific conditions and diagnostic steps are outlined for each issue:

• Coolant Warning (Q3): Diagnosis involves confirming the coolant level appears full despite the warning and noting that the case does not relate to TSB 2061918.
• ACC Sensor Misadjustment (Q5): This issue is typically observed on vehicles with less than 600 miles on the odometer.
• Boost Pressure Sensor (Q3): Technicians are instructed to identify harness issues by monitoring the G31 boost pressure sensor Measuring Value Block (MVB) while wiggle testing connections at the G31 sensor, T10k connector, and ECM. If initial checks yield no issues, resistance measurements and pin drag checks are performed using a specific circuit check chart. The harness must also be inspected for any sections that are pulled too tight, chafing, or pinched.
• PDC Sensor (Q3, A6): The parking aid warning typically appears shortly after PDI, often indicating a disconnected front or rear PDC sensor.
• Door Panel Noise (e-tron GT): For Audi e-tron door panel noise, this bulletin applies to concerns outside the scope of TSB 2064546, which addressed "Buzzing noise heard from the midrange speaker trim cover."

Repair Procedure Summary

This bulletin primarily focuses on data collection and analysis rather than providing a direct repair procedure. For all topics, technicians are required to document findings thoroughly and submit them to the Technical Assistance Center (TAC).

• General Steps: Prior to any repair, technicians must contact the Audi Helpline and complete specific worksheets for the issue. These worksheets are then attached to the TAC ticket.
• Boost Pressure Sensor Diagnosis (Q3): The diagnostic process involves monitoring sensor values and performing detailed circuit checks. This includes resistance measurements and pin drag checks for the G31 boost pressure sensor circuit, specifically between G31 and T10k, and ECM and T10k. Technicians must observe the harness for any signs of damage like chaffing or pinching. Any detected issues require clear photographic documentation before reporting findings to TAC for further instructions.
• Noise Concerns (e-tron GT, A5, e-tron Quattro/SB): For issues like Audi e-tron door panel noise, technicians must first verify the noise during a test drive or while playing music. They need to pinpoint the exact area of the door trim panel where the noise originates and identify its cause. All findings, including the proposed correction, must be documented.

Required Documentation

Audi requires specific documentation to be submitted with each TAC ticket:

• Coolant Warning: Photos showing the reservoir level, and the complete reservoir, connector, and a 4-inch harness section.
• Active Air Shutter: Photos of the shutter motor.
• ACC Sensor Misadjustment: Photo of the bumper mold number.
• Boost Pressure Sensor: Photos of any findings from harness checks, along with the completed Q3 Boost pressure sensor worksheet.
• PDC Sensor: Photos of the untouched vehicle (with the exception of bumper removal), the sensor connector as it was found, and the bumper harness label.
• Noise Concerns: A video of the noise before repair is performed. Photos of the repair, including wide shots to identify the repair area and close-ups of specific repairs (e.g., felt tape on door trim panel clips). For loudspeaker grille noise, a photo of the MMI sound settings and the music genre/song being played is also required. A completed worksheet, such as "Noise from Front Door Trim Panel e-tron GT," must be submitted with the TAC case.

Owner Action

If you are experiencing any of the symptoms described, especially Audi e-tron door panel noise or warning lights, it is crucial to take your vehicle to an authorized Audi dealer. Be prepared to describe the symptoms in detail, as this bulletin emphasizes thorough diagnosis and documentation by technicians to assist Audi in understanding and resolving these issues.

NHTSA ID: 10225453