Mercedes-Benz A W169 Front Left Door Lock Latch Mechanism Actuator A1697204135

The Mercedes-Benz A W169 Left Front Door Lock is an original locking mechanism with a built-in actuator, designed for installation in the left front door of W169 generation A-Class models. This part belongs to the Doors and Door Panels category and provides a functional solution for repairing the central locking system and restoring proper operation of the door handle and lock.

Specifications and technical data

• SKU: rhd-A1697204135-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1697204135
• Substitutable numbers: A1697204135, A 169 720 41 35, BG
• Location on the vehicle: Front, Left
• Category: Doors & Door Skins

Purpose and Function of the Left Front Door Lock

The presented lock mechanism is dedicated to the front left door of Mercedes A-Class W169 vehicles. It is responsible for the mechanical locking and unlocking of the door leaf, working in conjunction with the exterior and interior door handles, as well as the central locking system. The integrated actuator allows for control via remote and the button inside the cabin, ensuring consistent operation of the entire vehicle security system.

Construction and Integration with the Door System

The lock mechanism is an OEM construction, specifically designed for the geometry of the left front door in the W169 body. This means:

• fitting to factory mounting points within the door panel,
• compatibility with the original rods for the exterior and interior door handles,
• integration with the factory wiring harness and comfort module,
• maintaining the correct locking and unlocking sequence.

As a result, the lock operates predictably after installation, in line with the factory logic of the comfort system, without the need for modifications or mechanical adaptations.

Benefits of Using an Original Mechanism

Using the original left front door lock for the Mercedes-Benz A W169 allows for the restoration of proper door function after a failure of the factory component. The key benefits include:

• secure door locking – reducing issues with doors not closing properly, locks popping open, or self-opening,
• correct interaction with the central locking system and alarm,
• maintaining factory-level comfort for operating the door handle from the inside and outside,
• no need for modifications to the electrical system or door panel.

This solution is particularly beneficial for professional repairs where consistency with the factory design and predictable operational durability are crucial.

Item Condition and Service Application

The offered Mercedes-Benz left front door lock is a used part, making it an attractive cost-effective alternative while maintaining the original manufacturer's specifications. It is suitable for both routine repairs and comprehensive door restoration where multiple locking system components need replacement.

Mercedes Doors and Door Panels – Part Selection

If you need other components from the Mercedes Doors and Door Panels category, such as additional locks, hinges, or panels, check out our dedicated offer: Mercedes Doors and Door Panels. This will help you more easily assemble a set of parts tailored to a specific model and side of the vehicle.

Additional Service Information

When replacing the left front door lock, it is advisable to check the condition of the wiring harness in the door grommet, ensure correct window alignment, and adjust the hinges – these factors influence the smooth operation of the locking mechanism. For more extensive service work on the vehicle, technical materials regarding other systems, such as the fuel supply system, may be helpful. Practical tips in this regard can be found in the article: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Restoration.

Summary

The Mercedes-Benz A W169 – Left Front Door Lock with Actuator is a functional, original part from the Doors and Door Panels category, designed to restore proper operation of the driver's side locking system. Thanks to its factory fit for the W169 body, it ensures proper interaction with the central locking system, door handles, and electrical system, leading to trouble-free vehicle operation after the repair.