Door Lock Mercedes W176 W246 Front Right O/S Latch Mechanism Actuator

Right Front Door Lock for Mercedes W176 W246 is a precise latch mechanism with an actuator, designed for installation in the front right door of Mercedes A-Class and B-Class vehicles. This component from the Doors and Door Panels category ensures secure locking, proper cooperation with the central locking system, and stable operation of the exterior and interior door handles. Thanks to its factory design dedicated to a specific location on the vehicle, the lock guarantees correct bolt guidance and proper door closing geometry.

Specifications and technical data

• SKU: rhd-A1667200635-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1667200635
• Substitutable numbers: A1667200635, A 166 720 06 35, KD
• Location on the vehicle: Front, Right
• Category: Doors & Door Skins

Purpose and Function of the Door Lock

The presented lock mechanism is intended for installation in the front right door area, where it is responsible for the mechanical locking of the door leaf and cooperation with the vehicle's central locking system. The integrated electric actuator controls the bolt position, enabling remote opening and closing, while the mechanical part transmits movement from the handle and lock cylinder to the latch.

This solution allows for maintaining the proper rigidity of the door-to-body connection, reducing play, and minimizing unwanted noises during driving. The lock cooperates with factory guides, hinges, and door panels, which facilitates installation and subsequent adjustment.

Construction and Key Technical Features

The mechanism combines mechanical and electrical parts in a single housing, simplifying installation and servicing. In practice, this means:

• dedicated placement in the front right door, adapted to the door construction of Mercedes W176/W246,
• integrated actuator responsible for bolt control within the central locking system,
• designed guidance for exterior and interior handle linkages,
• housing adapted for operation within the door space, exposed to temperature and humidity changes.

Thanks to its factory design, the lock maintains proper cooperation with the vehicle's sensors and electrical system, which is crucial for the correct functioning of comfort and safety features.

Benefits of Using an Original Door Lock

Using an original lock in the front passenger door helps maintain the structural integrity of the body and predictable door behavior in daily use. The most important advantages include:

• secure closing and locking – proper geometry of the striker and bolt minimizes the risk of the door not closing properly,
• stable cooperation with the central locking system – correct actuator control and communication with the electrical system,
• compatibility with factory door components – no need for modifications to door panels or mountings,
• maintenance of factory acoustic comfort – reduction of rattles and play in the closing area.

This component is particularly important for problems with opening or closing doors, lack of response to remote control signals, or incorrect operation of the passenger-side handle.

Condition, Installation, and Service Application

The offered door lock is a used part from a dismantled vehicle, providing a cost-effective service solution for users seeking factory-designed parts at a reasonable price. This type of component is often chosen for accident repairs, replacement of damaged mechanisms due to corrosion, wear and tear, or actuator failure.

During installation, it is recommended to follow the disassembly order of the trim, guides, and door panel according to the service documentation, and to verify the correct alignment of the bolt with the body pillar. After installation, it is advisable to check the lock's operation via the remote control, interior button, and handles to confirm full functionality in various usage scenarios.

Mercedes Doors and Door Panels – Expansion and Repairs

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

For users interested in a wider range of drivetrain repairs and component selection based on driving style, a practical guide on drive axles and differentials may be helpful – you can find it in the article Used Drive Axles and Differentials – How to Choose Gear Ratios for Your Driving Style, which discusses gear ratio selection, component compatibility, and the specifics of used parts.