Door Lock Mercedes W221 Rear Right O/S Mechanism Actuator A2217308035

Door Lock Mercedes W221 Rear Right O/S Mechanism Actuator is an original component from the Locks and latches group, designed for the rear right side of the vehicle body. This used lock ensures a factory-fit to the door structure, maintaining proper cooperation with the handle mechanism, latch, and the vehicle's electrical system. It is a practical solution for users who want to restore proper door closing and locking without interfering with the body structure.

Specifications and technical data

• SKU: A2217308035
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217308035
• Substitutable numbers: A2217308035, A 221 730 80 35
• Location on the vehicle: Rear, Right
• Category: Exterior Locks & Lock Hardware

Purpose and function of the lock

The presented lock is dedicated to the rear right side of the vehicle, which guarantees correct mounting geometry and compatibility with the factory door system in the Mercedes W221 class. The component is responsible for mechanical locking and unlocking of the door, as well as proper cooperation with the central locking system and door position sensors, if provided in the given car configuration.

Thanks to the preservation of the original design, the lock maintains the appropriate stiffness of the connection with the door panel, which translates into stable closing, no play, and proper operation of the seals in the rear right area of the body.

Construction and fitment for Mercedes W221

Door Lock Mercedes W221 Rear Right O/S Mechanism Actuator has been designed for a specific body generation, which means precise fitment with factory mounting holes, guides, and rods. The lock construction is optimized for:

• stable mounting to the internal door structure,
• cooperation with the factory external and internal handle,
• correct routing of rods and any electrical wiring,
• maintaining the correct position of the latch relative to the body pillar.

The original origin from the Mercedes group promotes consistency with other elements of the locking system, which minimizes the risk of adjustment problems or the need for modifications.

Performance characteristics of the used component

The offered lock comes from the used Mercedes parts segment, which allows for economical repair while maintaining the original design. This type of component is particularly useful in situations where:

• the door does not close properly or requires excessive force,
• there are problems with locking the rear right side,
• the central locking does not always correctly lock or unlock the given door,
• mechanical damage to the lock has occurred as a result of a collision or operational wear.

Replacing it with an original lock from the same model series allows for restoring consistent operation of the locking system without the need to adapt replacements of different geometry or build quality.

Benefits of using an original door lock

Using a dedicated rear right lock in the Mercedes W221 provides a number of practical benefits:

• maintaining the factory level of safety when the door is closed,
• proper cooperation with the existing central locking system,
• no need to modify harnesses, rods, and mounts,
• consistent operation of all doors in the vehicle.

Thanks to this, the repair is predictable, and the risk of adjustment problems or noise while driving is reduced. This is a particularly beneficial solution for users who expect stable and repeatable operation of the door mechanism in daily use.

Expanding the locking system in Mercedes

If you are planning a comprehensive repair or upgrade of the door zone in your Mercedes and need other elements from the same group, such as locking mechanisms, cylinders, or additional control modules, check the available parts in the Mercedes Locks and latches category.

For drivers interested in improving cabin ergonomics and vehicle operation comfort, inspiration can be found in an article describing practical possibilities for interior personalization using aftermarket components – more information can be found in the material Car interior tuning with Global Parts.