Door Lock Mercedes W176 A-Class Front Right O/S Latch Mechanism Actuator

Mercedes W176 A-Class Right Front Door Lock is a factory-original locking mechanism with a built-in actuator, designed for installation in the right front door. This part, from the Doors and Door Panels category, ensures proper operation of the central locking system, secure closing, and reliable holding of the door leaf to the body. This used, original mechanism maintains the correct geometry and operational quality of the lock, consistent with Mercedes standards.

Specifications and technical data

• SKU: rhd-A1667200635
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1667200635
• Substitutable numbers: A1667200635, A 166 720 06 35, KZ
• Location on the vehicle: Front, Right
• Category: Doors & Door Skins

Vehicle Application and Placement

The presented lock mechanism is dedicated to the right front door of the Mercedes A-Class, generation W176. Its placement within the door panel area protects the component from external factors while ensuring easy service access after removing the upholstery.

As a part of the Doors and Door Panels group, the lock works in conjunction with the factory-operated external and internal door handle linkage, as well as the electrical system responsible for controlling the central locking and locking functions. Due to its original construction, it does not require modifications to mounting points or wiring harnesses.

Mechanism Design and Actuator Function

The mechanism combines the mechanical locking part and an integrated electric actuator within a single housing. This configuration ensures:

• consistent operation with the central locking system and vehicle electronics,
• stable locking of the door leaf when closing,
• proper interaction with the external and internal door handles,
• appropriate response to signals from the remote control and the driver's door lock.

The original Mercedes design minimizes operational play and ensures consistent pawl operation, which translates to predictable door closing and proper vibration damping during driving.

Benefits of Using an Original Door Lock

Using a factory-original lock with an actuator in the Mercedes W176 A-Class offers a range of practical operational benefits:

• Compatibility with Vehicle's Electrical System – original mounting points and electrical connectors are preserved, facilitating installation and reducing the risk of errors.
• Proper Interaction with Body Electronics – the central locking control unit receives signals consistent with factory specifications, minimizing the risk of comfort system errors or incomplete closing.
• Stable Locking Operation – the mechanism is designed for specific doors and body structures, ensuring appropriate closing force and secure holding.
• Reduced Noise and Vibrations – its precise fit to the door structure contributes to quiet lock operation and reduces unwanted rattling during driving.

Condition, Verification, and Service Application

This is a used part, which in service practice often represents a sensible compromise between cost and maintaining original manufacturing quality. This type of mechanism is particularly suitable for:

• repairing a malfunctioning central locking system on the passenger side,
• mechanical damage to the lock resulting from a collision or door tampering,
• issues with locking or unlocking the right front door.

For users considering the choice between a used factory part and an aftermarket replacement, the article: 5 Reasons Why a Used OEM Part is a Better Choice Than an Aftermarket Replacement, which discusses practical criteria for selecting components, may be helpful.

Mercedes Doors and Door Panels – Selecting Related Components

If you require other components from the Mercedes Doors and Door Panels category, such as additional locks, hinges, or panels, please browse our selection of Mercedes doors and door panels to find components tailored to your specific model and vehicle side.