Mercedes W221 Front Door Lock Latch Mechanism Right O/S Assembly A2217206035

Mercedes W221 Front Door Lock Latch Mechanism Right O/S Assembly is an original locking mechanism designed for installation on the passenger side in the front part of the body. As part of the Locks and latches group, this component ensures proper closing, locking, and unlocking of the door, which translates into safe and predictable operation of the central locking system in your Mercedes.

Specifications and technical data

• SKU: RHD-A2217206035-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217206035
• Substitutable numbers: A2217206035, A 221 720 60 35
• Location on the vehicle: Front, Right
• Category: Exterior Locks & Lock Hardware

Purpose and function of the lock mechanism

The presented mechanism is dedicated to the front right door of the Mercedes W221 body, i.e., on the exterior side of the vehicle corresponding to the passenger position. It is responsible for precise locking of the door leaf, as well as interaction with the exterior and interior handles and the central locking control system.

Thanks to the factory design tailored to the specific body generation, the lock maintains the correct mounting geometry, cable positioning, and interaction points with the electrical installation, which facilitates installation and reduces the risk of leaks or looseness at the door edge.

Construction and technical features

The Mercedes W221 front right door lock mechanism is based on a compact housing integrated with the locking system and components interacting with the actuator. This solution ensures:

• stable latch guidance during door closing and opening,
• adequate mounting rigidity within the door structure,
• the ability to operate under typical vehicle operating conditions (temperature changes, humidity, vibrations).

As an original component for the Mercedes brand, the lock is designed to work with the factory vehicle security system, which helps maintain the consistency of the entire body locking system.

Condition of the component and benefits of using a used part

The offered door lock is a used part, sourced from vehicle dismantling. This type of component allows for an economical repair of the locking system while maintaining the original design and fit for the specific model. In practice, this means:

• preservation of factory mounting points and door geometry,
• no need for adaptation or installation modifications,
• the ability to restore proper lock operation after a mechanical failure or wear of the previous component.

Choosing an original, used lock is particularly beneficial for service repairs where compliance with factory specifications and predictable long-term performance are important.

Selection and installation in the vehicle

The mechanism is intended for installation on the front right side of the vehicle, so when selecting, pay attention to the compatibility of the placement on the vehicle. A correctly selected lock allows for:

• seamless fit with the door panel and body pillar,
• proper alignment of the latch relative to the striker,
• correct interaction with the handles and central locking.

The replacement of the mechanism should be carried out in accordance with service procedures, including removing the door upholstery, disconnecting cables and connectors, and then re-adjusting the position of the lock relative to the body. This allows for restoring smooth door closing and opening without excessive force and without knocking sounds.

Expanding the locking system in your Mercedes

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

For users interested in a broader approach to vehicle servicing, including the selection of used OEM components in other systems, an article describing the principles of selecting and maintaining components responsible for cabin comfort may be helpful – you can find it here: Air conditioning and heating – part selection and maintenance for year-round comfort.