2021-2023 Audi Multi-Topic TSB: Noise, Warnings & DTCs

Audi has released a multi-topic Technical Service Bulletin (TSB 10233689) dated March 13, 2023, providing diagnostic and documentation guidance for technicians addressing a range of issues across various 2021-2023 Audi models. This TSB emphasizes the importance of thorough documentation, including photos and videos, before contacting the Audi Helpline.

The bulletin covers diverse symptoms from warning lights and diagnostic trouble codes (DTCs) to specific noises reported by owners. For instance, the Audi e-tron door trim noise is a key focus, requiring detailed video and photo evidence.

Symptoms

Owners of affected 2021-2023 Audi vehicles may experience one or more of the following symptoms:

• Low Coolant Warning: A "low coolant warning in the cluster" may appear, even if the coolant level in the reservoir appears full (2020-2021 Audi Q3).
• Check Engine Light with Active Air Shutter Fault: The "Check engine lamp is illuminated" with a stored DTC P05A000, indicating an "Active Grille Air Shutter 'A' Stuck" (2021-2022 Audi Q7/Q8).
• Belt Noise from Starter Generator: "Noise is present from the starter generator during starting or while running" (2023 Audi Q5).
• Check Engine Light with Boost Pressure Sensor DTCs: The "Check engine lamp is on" with DTCs P010600, P023600, P023700, P023800 related to the boost pressure sensor (2022 Audi Q3).
• Front Door Trim Panel Noise: "Noise from front door trim panel while driving" (2021-2022 Audi e-tron Quattro/SB). This is the specific Audi e-tron door trim noise addressed.
• Front Door Speaker Grill Noise: "Noise from front door loudspeaker grille with music playback or while driving" (2021-2022 Audi A5).

Fault Codes / DTCs

This TSB specifically mentions several Diagnostic Trouble Codes (DTCs) that technicians should be aware of:

Diagnosis and Documentation Requirements

Audi emphasizes that all topics require associated worksheets to be filled out and attached to the TAC ticket. These worksheets can be found at: ServiceNet>>Technician References>>Vin-4-Pin>>Worksheets.

• Coolant Warning Lamp (2020-2021 Audi Q3): Technicians must document the "low coolant warning in the cluster" and confirm if the coolant level appears full in the reservoir. A photo showing the reservoir level is required. This issue is noted as not relating to TSB 2061918.

• Active Air Shutter Fault (2021-2022 Audi Q7/Q8): For the "Check engine lamp is illuminated" with DTC P05A000, photos of the shutter motor are required. The code indicates an "Active Grille Air Shutter 'A' Stuck" condition.

• Belt Noise from Starter Generator (2023 Audi Q5): If "Noise is present from the starter generator during starting or while running," technicians need to provide an audio/video recording of the noise. They should also document ambient conditions (temperature/humidity) and whether the complaint is temperature-dependent.

• Boost Pressure Sensor DTCs (2022 Audi Q3): When the "Check engine lamp is on" with DTCs P010600, P023600, P023700, P023800, extensive documentation is needed. This includes a wiggle test of the harness, checking pin fitment and drag, circuit resistance (if applicable), photos of findings, and completing a specific Q3 Boost pressure sensor worksheet.

• Noise from Front Door Trim Panel (2021-2022 Audi e-tron Quattro/SB): For the "Noise from front door trim panel while driving," technicians are required to provide a video of the noise before repair is performed, along with photos of the repair. This directly addresses the Audi e-tron door trim noise.

• Noise from Front Door Speaker Grill (2021-2022 Audi A5): If "Noise from front door loudspeaker grille with music playback or while driving" is reported, a video of the noise before repair and photos of the repair are needed. Technicians must also provide a photo of the sound settings in the MMI and the music genre/song being played.

Important Warnings

• "Please contact Audi Helpline before attempting repair." This instruction is critical for technicians to ensure proper diagnostic steps are followed and to receive guidance before initiating repairs.
• "All topics have associated worksheets to be filled out and attached to the TAC ticket." This highlights the mandatory documentation process required by Audi for these specific issues.

Owner Action

If you are experiencing any of the symptoms or DTCs mentioned in this bulletin for your 2021-2023 Audi, it is recommended to contact your authorized Audi dealership. Be prepared to describe the symptoms in detail, including when they occur and under what conditions. Providing any relevant photos or videos of the issue, especially for the Audi e-tron door trim noise or starter generator belt noise, can assist technicians in their diagnostic process.

NHTSA ID: 10233689