Mercedes W169 Door Lock Door Front Left N/S Key Automatic Lock A1697204535

Mercedes W169 Door Lock Door Front Left N/S Key Automatic Lock is an original component from the Locks and latches group, designed for installation on the driver's side in models with an automatic transmission. It is a practical solution for users who want to restore the proper operation of the central locking system and the convenience of daily vehicle use.

Specifications and technical data

• SKU: RHD-A1697204535
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1697204535
• Substitutable numbers: A1697204535, A 169 720 45 35
• Location on the vehicle: Front, Left
• Gearbox type: Automatic
• Category: Exterior Locks & Lock Hardware

Purpose and function of the door lock

The presented lock is dedicated to the front left door of the Mercedes W169 class, which ensures a proper fit to the door structure and the vehicle's electrical installation. The component is responsible for the mechanical locking and unlocking of the door and works with the lock control system, making it possible to comfortably use the locking and opening functions via the key or from inside the car.

Thanks to its factory origin, the lock maintains compatibility with the original door geometry, which facilitates installation and reduces the risk of problems with closing, play, or improper latch operation. This is particularly important in vehicles where the precise fit of body components affects acoustic comfort and safety.

Compatibility with automatic transmission

This door lock is intended for vehicle configurations equipped with an automatic transmission. This means that its design and the way it interacts with the electrical installation are adapted to the logic of the comfort and safety systems in such powertrain versions.

In practice, this translates into proper cooperation with functions such as door locking while driving, control via the key, and integration with other body modules. Choosing the correct lock variant based on the transmission type minimizes the risk of communication errors in the system and the need for additional modifications.

Installation and operational characteristics

The placement on the front left side of the vehicle makes the lock play a key role in daily car use – it is through this door that the driver most often enters and exits. A properly selected lock ensures:

• stable door latching when closing,
• proper cooperation with the external and internal door handle,
• consistent operation with the central locking system and remote control,
• maintenance of the factory level of door operation comfort.

The component comes from a used vehicle, which in practice means that it is a part with parameters close to factory specifications, retaining its original design and purpose. For many users, this is a technically sound choice when repairing the door locking system.

Application in the Locks and latches system

As a component from the Locks and latches group, this door lock works with other elements responsible for the safety and comfort of cabin access. Replacing a faulty lock with an original equivalent allows you to restore:

• proper closing and locking of the driver's door,
• consistent operation of the central locking on all doors,
• correct response to signals from the key or buttons inside the vehicle.

Thanks to the preservation of the factory design, the lock does not require modification of the installation or interference with the door structure, which is beneficial both in terms of technical aspects and the time required for the repair itself.

Expansion of the lock system in a Mercedes

If you are planning a comprehensive repair or upgrade of the cabin access zone in your Mercedes and need other elements from the same group, such as latching mechanisms, cylinders, or additional control modules, check the available parts in the Mercedes Locks and latches category.

For drivers interested in a broader approach to vehicle modernization, including the use of proven components from the secondary market, valuable information on the selection and application of such components can be found in the article The best used parts for tuning your car, which discusses the practical aspects of using used components in the automotive industry.