Mercedes W220 Door Lock Latch Catch Mechanism Left N/S A2207207135

Mercedes W220 Door Lock Latch Catch Mechanism Left N/S is an original locking mechanism designed for installation on the left side of the vehicle body. This component belongs to the Locks and Latches group and has been specifically engineered for precise integration with the electronics and door structure of the Mercedes S-Class W220 generation. It is a practical solution for users looking to restore the proper operation of the central locking system and ensure door closing comfort.

Specifications and technical data

• SKU: RHD-A2207207135
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2207207135
• Substitutable numbers: A2207207135, A 220 720 71 35
• Location on the vehicle: Left
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented lock mechanism is responsible for the mechanical locking and unlocking of the left door, working in conjunction with the actuator and the central locking control system. A properly functioning lock ensures:

• stable door closure while driving,
• correct operation with both the exterior and interior door handles,
• consistent performance with the central locking and anti-theft security systems,
• convenient operation of the driver or passenger door on the left side of the vehicle.

Thanks to its dedicated design for the Mercedes W220, the mechanism maintains factory mounting geometry and correct routing of rods and levers.

Construction and fitment for the Mercedes W220

The door lock mechanism is constructed as a complete solution mounted inside the door panel. The design allows for seamless integration with factory:

• handle rods,
• central locking components,
• guides and catches within the door structure.

Positioning on the left side of the vehicle means that the geometry of the catch, the position of the levers, and the mounting points are optimized for this specific side of the body, which facilitates installation and minimizes the need for additional modifications.

Condition, origin, and benefits of using a used part

The offered lock belongs to the group of used parts, which allows for an economical repair while maintaining the original build quality characteristic of the Mercedes brand. In practice, this means:

• maintaining factory fitment for the W220 door,
• no need for mounting adaptations,
• the ability to restore proper lock operation without interfering with the door structure.

For workshops and individual users, this is a solution that helps reduce repair time and costs compared to purchasing a new component.

Practical installation and maintenance tips

When replacing the lock in a Mercedes W220, it is worth paying attention to:

• correct alignment of the mechanism relative to the pillar and the striker,
• checking the condition of the rods and handles,
• verifying operation with the central locking system after installation,
• thoroughly tightening the mounting bolts to avoid play and rattling noises.

After installation, it is recommended to test the lock operation several times using the remote, the key, and from inside the vehicle to ensure that locking and unlocking proceed smoothly.

Repair expansion and additional information

If you are planning a comprehensive repair or upgrade of the door and lock area in your Mercedes and need other components from the same group, such as locking mechanisms, cylinders, or strikers, check out the available parts in the Mercedes Locks and Latches category.

To better plan service work and reduce vehicle downtime in the workshop, it is worth reading the practical tips regarding parts logistics – you will find them in the article No more waiting for weeks – how a wide assortment in one warehouse actually shortens your car's downtime at the mechanic?.