Mercedes-Benz S-Class W220 Rear Left N/S Door Lock Locking Rod A2207330039

Mercedes-Benz S-Class W220 Rear Left Door Lock is an original part from the Doors and Door Panels group, designed for precise control of the locking mechanism. Thanks to its factory design, it ensures proper cooperation with the lock rod and other door components, which translates to secure closing and correct central locking operation. This solution is dedicated to users expecting compliance with factory Mercedes-Benz standards.

Specifications and technical data

• SKU: A2207330039
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2207330039
• Substitutable numbers: A2207330039, A 220 733 00 39, AS
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and Fitment

The presented lock is intended for installation in the rear left part of the S-Class W220 body. Its placement in the rear door area on the driver's side means this component is responsible for the correct locking of the door leaf, cooperation with the interior and exterior handles, and integration with the vehicle's factory locking system. The design, based on the vehicle manufacturer's solutions, allows for maintaining the correct geometry of the rod and lock mechanism operation.

Construction and Technical Function

The door lock operates as a mechanical actuator in the locking system, transferring movement from the handle and rod to the locking bolt. It is responsible for:

• stable holding of the door in the closed position while driving,
• cooperation with the central locking system and remote control,
• correct engagement of the lock latch with the striker on the body pillar,
• control of the door position in relation to the opening sensors.

By maintaining its factory design, the lock ensures proper rigidity of connection with the door panel and correct rod guidance, which reduces the risk of play, jamming, and leaks within the door.

Benefits of Using an Original Lock

Using the original rear left door lock in a Mercedes-Benz S-Class W220 allows for maintaining the consistency of the entire locking system. Key benefits include:

• Factory Fitment – compatibility with the door and door panel construction, without the need for modifications or adjustments to mounting points.
• Stable Mechanism Operation – correct locking and unlocking, which contributes to the comfort of daily vehicle use.
• Vehicle System Compatibility – designed to work with existing lock system components, rods, and door hardware.
• The ability to restore full door functionality after a failure or wear of the previous component.

Characteristics of a Used Part

The offered lock comes from the used parts segment, allowing for economical repair while maintaining the original construction. This type of component is particularly attractive for older vehicle generations where the combination of reasonable costs and adherence to factory solutions is important. Choosing a used door lock enables the restoration of correct mechanism operation without the need to resort to aftermarket alternatives with uncertain fitment.

Expansion and Other Mercedes Door Components

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other parts from the same group, such as skins, reinforcements, or additional structural elements, check the available parts in the Mercedes Doors and Door Panels category.

For drivers interested in broader vehicle modernization, including improved visibility and safety, a practical guide on selecting and replacing lighting may be helpful – you can find it in the article See More and Better – A Complete Guide to Selecting and Replacing Used LED and Xenon Headlights.