2021-2022 Audi Coolant Light Concern TSB

Symptoms

Owners of certain 2021-2022 Audi vehicles may experience a "coolant light concern" appearing on their dashboard. This warning light typically indicates a low coolant level or an issue with the cooling system. However, in this specific scenario, the coolant reservoir level appears to be normal, leading to confusion and concern for the driver.

This TSB specifically addresses situations where the coolant light illuminates without an actual deficiency in the coolant fluid, suggesting a potential diagnostic challenge or sensor-related issue rather than a physical leak or low fluid condition.

Diagnosis

This Technical Service Bulletin (TSB) provides guidance for Audi technicians to accurately diagnose the root cause of the "coolant light concern" when the coolant level is normal. The bulletin helps ensure that technicians follow a structured approach to identify whether the warning is due to a faulty sensor, an electrical issue, or another system anomaly, rather than simply topping off coolant or performing unnecessary repairs.

The TSB focuses on the diagnostic steps required to confirm the presence of the issue and determine the appropriate repair. This helps prevent misdiagnosis and ensures that the underlying problem is correctly identified and resolved.

Owner Action

If you own a 2021-2022 Audi vehicle and are experiencing a "coolant light concern" despite the coolant level appearing normal, it is recommended to schedule an appointment with an authorized Audi dealership. Inform them about the specific symptom you are observing. The dealership technicians can refer to NHTSA ID 10205898 to assist in diagnosing and resolving the issue.

Source: NHTSA ID 10205898