Mercedes W221 Door Lock Latch Mechanism Rear Left N/S A2217303335

Mercedes W221 Door Lock Latch Mechanism Rear Left N/S is an original component from the Locks and Latches category, designed for the rear left side of the vehicle body. It ensures precise operation of the door locking mechanism, stable latching, and proper integration with the factory systems of the Mercedes S-Class W221. This is a solution for users who expect robust construction and the maintenance of factory safety parameters.

Specifications and technical data

• SKU: A2217308135
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217308135
• Substitutable numbers: A2217308135, A 221 730 81 35, A2217303335, A 221 730 33 35
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the lock mechanism

The presented lock mechanism is dedicated to installation in the rear left part of the body, making it a perfect fit for the door system in the Mercedes W221. It is responsible for secure latching of the door, correct opening from both the inside and outside, and cooperation with the central locking system. Using an original design allows for consistency with the vehicle's factory electrical and mechanical installation.

Construction and fitment for Mercedes W221

The mechanism has been designed specifically for the geometry of the rear left door in the Mercedes S-Class W221 generation. The appropriate placement of mounting points and the shape of the housing facilitate installation in factory holes without the need for modifications. The use of the manufacturer's original technology translates into proper cable routing and cooperation with handles and control elements.

As a result, the lock maintains proper operating standards – the door closes evenly, and latching is smooth, which reduces unwanted stress on hinges and seals. This is particularly important in premium class vehicles, where both user comfort and the durability of body components are paramount.

Benefits of using an original door lock

Using an original lock mechanism in a Mercedes W221 offers a number of practical advantages:

• maintenance of factory compatibility with the central locking system and vehicle electronics,
• proper fitment to the rear left door structure,
• stable latching of the door while driving and when parked,
• reduced risk of issues with closing or jamming of the lock,
• easier diagnostics in the event of potential future faults.

For users who value consistency with factory solutions, the original Mercedes door lock is a sensible choice that helps maintain the proper level of safety and operational comfort of the vehicle.

Product characteristics and condition

The offered mechanism comes from a Mercedes vehicle and is a used part, which allows for combining an attractive purchase cost with the preservation of the original design. This type of solution is particularly beneficial for maintenance or post-accident repairs when the goal is to match a specific body version and maintain factory lock performance parameters.

Choosing a used door lock from this series is a good solution for workshops specializing in the Mercedes brand and for conscious users who prefer parts from disassembly over uncertain replacements of unknown quality.

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

Technical support and knowledge about used body components

When selecting used body components, such as door locks, it is worth considering both the technical condition and the origin of the part. For those who want to better understand the differences between used components and replacements, the article comparing these solutions may be helpful – Post-accident repair of your car: why are used body parts a better choice than replacements?. This makes it easier to make an informed decision when planning a repair or vehicle upgrade.