Mercedes-Benz Recall 310667 Vehicles Due To Door Lock Microswitch Issue

Mercedes-Benz Recall 310667 Vehicles Due To Door Lock Microswitch Defect

Mercedes-Benz recall 310667 vehicles covers multiple A-Class, CLA, C-Class, CLE, GLA, GLB, and GLC model years in the United States due to a defective door lock microswitch. The issue involves the microswitch housing, which may allow moisture penetration and cause corrosion over time. This corrosion can prevent the vehicle system from detecting an open driver-side door. The affected vehicles continue to have normally functioning door locks, but the electronic systems connected to the door status detection may experience failures under specific conditions.

Mercedes-Benz identified the defect after receiving field reports and conducting technical investigations into the door lock microswitch condition. The company reported that no United States rollaway incidents have occurred because of this issue. However, a failed microswitch could stop the electronic parking brake or Auto-Park feature from engaging automatically. This condition may increase the risk of unintended vehicle movement, especially when a vehicle is parked on an incline or left unattended.

The recall affects 310,667 vehicles across several passenger car platforms, including A-Class, CLA, C-Class, CLE, GLA, GLB, and GLC models. The corrective action involves replacing the affected driver door lock assembly at authorized dealerships without any cost to vehicle owners. Owner notification letters are scheduled to begin by September 18, 2026. Customers will receive instructions regarding inspection and repair procedures through official recall communication channels.

The safety action highlights the importance of reliable electronic monitoring systems in modern vehicles. As vehicle manufacturers continue integrating automated parking and electronic safety functions, components such as door lock microswitches play a critical role in preventing unintended operation. The recall in the United States demonstrates how small component-level failures can influence broader vehicle safety systems and require preventive measures across large vehicle populations.

Frequently Asked Questions

Why is Mercedes-Benz recalling these vehicles?
The recall is related to a defective door lock microswitch that may allow moisture entry and corrosion inside the component. This corrosion can prevent the system from detecting an open driver-side door correctly. Although the door lock remains operational, the failure may affect automatic engagement of the electronic parking brake or Auto-Park feature, creating a potential rollaway risk. Mercedes-Benz identified the issue through field reports and technical investigations and is offering free driver door lock replacement.