2021 Audi A6 Engine Stalling Update 13H3

Symptoms

Owners of affected 2021 Audi A6 vehicles may notice their engine not running smoothly, particularly under specific operating conditions. In rare instances, the engine might even stop running entirely under these conditions. This Audi A6 engine stalling issue is primarily observed when the vehicle is idling, such as when it is stationary or just before coming to a complete stop. While the engine can typically be restarted, the intermittent nature of the problem can be concerning.

Diagnosis / Trigger Conditions

Audi's internal research indicates that the issue with the camshaft adjuster's control only manifests when the engine is idling. This means the problem is most likely to occur when your 2021 Audi A6 is stopped in traffic, waiting at a light, or slowing down to park. If you experience your Audi A6 engine stalling or running roughly during these specific times, it may be related to this known condition.

Repair Procedure Summary

The solution for the Audi A6 engine stalling and rough running issue involves an update to the Engine Control Module (ECM) software. This software update, identified as Update 13H3 and also referred to as FED_EMS, is designed to optimize the control of the camshaft adjuster, ensuring the engine runs smoothly across all operating conditions, including idle. The update will be performed by an authorized Audi dealer.

Important Warnings / What Owners Should Know

Audi has issued specific guidance regarding this update:

• No Consumer Notification: Consistent with Audi's corporate policy for