Ford C-Max Mk2 Door Lock Actuator Front Left N/S AM5A-U21813-DC

Ford C-Max Mk2 Door Lock Actuator Front Left N/S is a precision component from the Internal locks and latches category, responsible for securely locking and unlocking the driver's door. Designed specifically for the front left side of the vehicle body, it ensures proper integration with the factory lock mechanism and the vehicle's electrical system. This solution is dedicated to users who expect efficient central locking operation and stable performance of the door opening system.

Specifications and technical data

• SKU: RHD-AM5A-U21813-DC
• Mark: Ford
• Condition: Used
• OEM Part Number: AM5A-U21813-DC
• Substitutable numbers: AM51-U219A65-DJ, AM51U219A65DJ, AM5A-U21813-DC, AM5AU21813DC
• Location on the vehicle: Front, Left
• Part type: Door Lock Knob
• Category: Interior Locks & Lock Hardware

Purpose and compatibility for Ford C-Max Mk2

The presented actuator is intended for installation in the front left door of the second-generation Ford C-Max. The vehicle placement is factory-defined as front – left side, which facilitates clear identification of the component during part selection and repair planning. Thanks to a design consistent with the vehicle manufacturer's specifications, the component works with the factory door handle mechanism, lock cylinder, and central locking system. Such compatibility reduces the risk of installation issues and helps maintain the original functionality of the door.

Function and role in the locking system

The actuator is responsible for converting the control signal from the comfort module or central locking system into the mechanical movement of the door latch. In practice, this means:

• secure locking of the driver's door when closing the vehicle,
• proper unlocking of the door after opening via remote or from the interior,
• stable cooperation with the internal and external door handle mechanisms,
• maintaining the proper level of cabin access security. A functional lock actuator minimizes the risk of problems with doors not closing properly, lack of response to central locking commands, or the need for repeated opening and closing of the door. This is particularly important in daily operation, where the comfort and predictability of lock operation have a direct impact on vehicle usability.

Product characteristics and condition

The offered component comes from a Ford vehicle and is part of the original door locking system architecture. As a product from the Internal locks and latches category, it has been designed to operate in demanding conditions – with frequent cyclic opening and closing of the door, temperature changes, and exposure to body vibrations. The part is in used condition, meaning it was previously operated in a vehicle but retains functionality allowing for further use after proper installation. This is a practical solution for users looking for a technically sound component at a more favorable price than a new replacement, while maintaining proper fitment for the specific model.

Benefits of using a dedicated actuator

Using an actuator designed exactly for the front left door of the Ford C-Max Mk2 allows you to:

• maintain the consistency of the locking system with the vehicle's factory configuration,
• reduce installation time thanks to the intended vehicle placement,
• maintain the comfort of operating the central locking via remote and from the interior,
• reduce the risk of failures resulting from the mismatch of universal parts. For workshops and individual users, this means a more predictable repair process and a lower probability of needing to re-intervene in the door mechanism.

Expanding repairs within Ford door locks

If you are planning a comprehensive repair or upgrade of the door lock area in your Ford and need other elements from the same group, such as latching mechanisms, cylinders, or additional actuators, check the available parts in the Ford internal locks and latches category. For users of diesel-powered vehicles who are simultaneously diagnosing engine performance issues, material discussing typical symptoms and consequences of neglect in the fuel system may be helpful. In such a case, it is worth reading the article Diesel injector faults – how to recognize them and the risks of neglecting them, which facilitates informed planning of further service work.