2021-2022 Audi e-tron PDC Sensor Loose & Other Faults

Audi has released an 'On-car analysis list' dated January 27, 2023, for technicians to gather detailed information on several reported issues affecting various 2021-2022 Audi models. This document serves as a guide for data collection, requiring technicians to complete specific worksheets and contact the Audi Helpline before attempting any repairs. The goal is to thoroughly document symptoms, diagnostic conditions, and any associated fault codes to aid in further analysis by Audi.

This analysis list covers a range of concerns, from warning lights and sensor malfunctions to interior noises and display issues. Owners experiencing any of the described symptoms should contact their authorized Audi dealer for diagnosis and to ensure proper data collection is performed.

Important Note for Owners

This document is primarily for Audi technicians to collect data. It explicitly states, "Please contact Audi Helpline before attempting repair." If your vehicle exhibits any of the symptoms described below, it is crucial to visit an authorized Audi service center. Technicians are required to fill out associated worksheets and attach them to the TAC (Technical Assistance Center) ticket, which can be found in ServiceNet>>Technician References>>Vin-4-Pin>>Worksheets.

Overview of Reported Issues

Audi is investigating multiple distinct issues across its 2021-2022 model lineup. Each topic requires specific documentation and analysis before any repair attempts.

PDC Sensor Connector Loose

One significant concern being investigated is the 'PDC sensor connector loose' issue, which can affect the 2021-2022 Audi e-tron, Q3, and A6 models. Owners may notice a "Parking aid warning is displayed" shortly after the Pre-Delivery Inspection (PDI). This can occur if either a front or rear PDC (Park Distance Control) sensor is found not connected.

For the Audi A6 (2022 models), this specific issue might set DTC B10F914, indicating a "Right front center parking aid sensor Open circuit/short circuit to Ground (GND)", or DTC B107B13 for a "Rear parking aid sensor Open circuit." Technicians are instructed to document the condition of the sensor connector as found, especially on untouched vehicles where the bumper was only removed for inspection. Photos of the sensor connector and bumper harness label are required for analysis.

Coolant Warning Lamp

For 2021 Audi Q3 models, customers may report a "low coolant warning in the cluster" even when the coolant level in the reservoir appears to be full. This issue is distinct from TSB 2061918. Technicians are asked to provide a photo showing the reservoir level and to complete the reservoir, connector, and a 4-inch harness section for analysis.

Active Air Shutter Malfunction

2021-2022 Audi Q7 and Q8 vehicles are being investigated for issues with the active air shutter. Symptoms include the "Check engine lamp is illuminated" and the storage of DTC P05A000, which indicates "Active Grille Air Shutter 'A' Stuck" in the Engine Control Module (ECM). Photos of the shutter motor are required for documentation.

MMI Display Ghost Touches

Owners of 2022 Audi Q3 models might experience "MMI display exhibits unintended clicks/screen changes due to 'Ghost Touches'." Audi requests that customers be asked if the vehicle can be held for several days to allow for further analysis by the part supplier. If the customer is unwilling to leave the vehicle, this specific Vin4Pin analysis does not apply.

Rear PDC Mount Issues

For 2021-2022 Audi A5 models, there are reports of the "Rear PDC mount comes loose from bumper." Customers may state that one of the rear PDC sensors is pushed in or missing, with the mount discovered to have come loose from the rear bumper. Documentation requires photos of the painted side of the rear bumper (showing no damage to the cover) and the rear of the cover showing the loose mount and bumper surface. The case is only eligible for this analysis if both the mount and bumper are able to be returned.

Boost Pressure Sensor Faults

2022 Audi Q3 vehicles are under investigation for boost pressure sensor issues, indicated by an illuminated "Check engine lamp" and the presence of DTCs such as P010600, P023600, P023700, and P023800. Technicians must perform a wiggle test on the harness, check pin fitment and drag, and check circuit resistance if needed. Photos of any findings are also required, along with completion of the Q3 Boost pressure sensor worksheet.

Noise from Front Door Trim Panel

2021-2022 Audi e-tron Quattro and e-tron SB models are being analyzed for "Noise from Front Door Trim Panel" while driving. Technicians are asked to provide a video of the noise before repair and photos of any repairs performed.

Noise from Front Door Speaker Grille

Finally, 2021-2022 Audi A5 models are being investigated for "Noise from Front Door speaker Grill" during music playback or while driving. Similar to the trim panel noise, documentation includes a video of the noise before repair, photos of the repair, and a photo of the sound settings in the MMI and the music genre/song being played.

What Owners Should Do

If you own a 2021-2022 Audi e-tron, Q3, Q7, Q8, A5, or A6 and are experiencing any of these symptoms, especially a "Parking aid warning" or issues related to the "Audi e-tron PDC sensor loose", contact your local authorized Audi dealer. Your dealer will follow Audi's specific diagnostic and data collection procedures to help resolve the issue and contribute to Audi's ongoing analysis.

NHTSA ID: 10230994