2021-2022 Audi e-tron AC Sensor Failure Service Action 87H9

Audi has released Service Action 87H9, a dealer communication dated February 12, 2024, to address a potential issue with the air conditioning system in specific 2021-2022 Audi e-tron vehicles. This action aims to resolve problems stemming from faulty pressure and temperature sensors that can lead to a complete loss of air conditioning function. Owners experiencing an Audi e-tron AC sensor failure should be aware of this service action.

Symptoms of AC Sensor Failure

Owners of affected 2021-2022 Audi e-tron vehicles may notice that the "air conditioning system will no longer function." This means the vehicle's climate control system will be unable to cool or dehumidify the cabin effectively. A non-functional AC system can significantly reduce passenger comfort, especially in warm weather, and may also impair the effectiveness of the defroster, impacting visibility.

Diagnosis and Trigger Conditions

The root cause of this issue is identified as a potential failure of the pressure and temperature sensors within the air conditioning system. These sensors are crucial for the proper operation and regulation of the AC, providing essential data to the climate control unit. When these sensors fail, the system cannot operate as intended, leading to the Audi e-tron AC sensor failure.

Repair Procedure Summary

For affected vehicles, the repair procedure outlined in Service Action 87H9 involves an inspection of the air conditioning system's pressure and temperature sensors. If the inspection confirms a fault, the affected sensors will be replaced. Dealers are instructed to refer to ELSA and Service References in Elsa2Go for comprehensive repair and claiming instructions to ensure the correct procedure is followed.

Important Information for Owners

Audi has provided several key directives regarding Service Action 87H9. Dealers are required to "Repair every affected inventory vehicle before delivery to consumers," ensuring that new vehicles are sold with the issue resolved. Owners of currently affected vehicles should "Schedule owner repairs immediately" to address the problem promptly. Audi also plans an "Owner mailing – February2024" to inform vehicle owners directly about this service action. Parts required for this repair will be managed by "Free Order," indicating that the repair will be covered by Audi.

What Owners Should Do

If you own a 2021-2022 Audi e-tron and suspect an Audi e-tron AC sensor failure, or if your air conditioning system is not functioning, it is recommended to contact your authorized Audi dealership. Inform them about Service Action 87H9 and schedule an appointment for inspection and repair. Addressing this issue promptly will restore your vehicle's air conditioning functionality and ensure continued comfort.

Source: NHTSA ID: 10250345