Mercedes W415 Rear Door Lock Right O/S Actuator Mechanism A4157300035

The Mercedes W415 Rear Right Door Lock is a precise actuator mechanism designed for operating the closing and locking of the rear passenger-side door. This component, from the Locks and Latches group, is responsible for secure closing, unlocking, and integration with the central locking system, directly impacting the vehicle's safety and user comfort.

Specifications and technical data

• SKU: A4157300035
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4157300035
• Substitutable numbers: A4157300035, A 415 730 00 35
• Location on the vehicle: Rear, Right
• Category: Exterior Locks & Lock Hardware

Vehicle Application and Placement

The presented lock mechanism is specifically designed for installation in the rear right section of the body for Mercedes W415 models. Its placement in the rear passenger door area means it is responsible for proper interaction with the exterior and interior door handles, as well as the central locking system and comfort control unit.

Thanks to its dedicated fitment for a specific side of the vehicle, the lock ensures correct latch guidance, stable mechanism positioning, and proper actuator operation throughout the full door movement range.

Lock Mechanism Construction and Function

The mechanism combines a mechanical part responsible for latching with an electrically controlled part, enabling integration with the central locking system and the vehicle's comfort functions. The construction includes:

• a latch assembly that engages with the strike plate on the body pillar,
• mechanical connections to the handles and control rods,
• an integrated actuator responsible for automatic locking and unlocking,
• mounting points designed to match factory holes in the door.

This solution allows for the preservation of the lock's original operating characteristics, including appropriate closing force and consistent performance during daily use.

Benefits of Using an Original Rear Right Door Lock

Using an original rear right door lock for the Mercedes W415 offers a number of practical advantages. The most significant include:

• Factory Fitment – compatibility with the door structure and the vehicle's electrical system, eliminating the need for modifications.
• Stable Central Locking Operation – correct locking and unlocking of the rear passenger door, synchronized with the other locks.
• Restoration of Full Door Functionality – proper operation of handles, locks, and safety features related to door closure.
• The ability to restore original sealing and reduce unwanted noises resulting from play in a worn mechanism.

Used Part Characteristics

The offered lock is a used part, meaning it is a component from a dismantled vehicle that retains its intended functionality. This type of component is a sensible choice for repairs when the priority is to combine original construction with a favorable purchase price. Before installation, standard verification of the electrical system and the correct adjustment of rods and handles is recommended to fully utilize the mechanism's capabilities.

Product Group – Mercedes Locks and Latches

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

Additional Technical Support

When planning repairs and upgrades, it is also worth considering potential service costs related to other vehicle components. Practical tips regarding common faults and their impact on the operating budget can be found in the article BMW E90 Faulty Engines: Check What Can Ruin Your Budget, which illustrates how a conscious approach to diagnostics and parts selection can reduce unexpected expenses.