Mercedes W169 Door Lock Front Left N/S Latch Mechanism Actuator A1697202735

Left front door lock for Mercedes W169 is a factory-supplied latch mechanism with an actuator, designed for installation in the left front door of vehicles in this series. This component belongs to the Doors and Door Panels category and is a precisely fitted part of the locking system, ensuring correct integration with the electrical system and central locking control.

Specifications and technical data

• SKU: rhd-A1697202735-3
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1697202735
• Substitutable numbers: A1697202735, A 169 720 27 35
• Location on the vehicle: Front, Left
• Category: Doors & Door Skins

Vehicle Application and Placement

The presented lock mechanism is designed for operation in the front – left side of the body, meaning it is installed in the driver's door for left-hand drive versions. The lock's construction is adapted to the door geometry of the Mercedes compact class W169, ensuring proper positioning of the bolt, linkages, and mounting points.

The placement on the vehicle is factory-defined, making this part non-universal – its application is limited to a specific side and axle of the vehicle. This solution helps maintain the correct operating geometry of the mechanism, resulting in smooth door opening and closing, and proper lock function.

Mechanism Construction and Actuator Function

The left front door lock for Mercedes W169 combines a latch mechanism with an electric actuator within a single housing. This assembly is responsible for:

• mechanically locking and unlocking the door leaf relative to the body pillar,
• transferring motion from the external and internal door handles to the lock latches,
• interacting with the central locking system via an integrated electric drive,
• controlling the door's position in comfort systems (e.g., open door indicator).

The mechanism housing is designed to fit the Mercedes door structure, facilitating installation in factory mounting points. Using an original solution helps maintain the lock's proper operating characteristics, including closing force and connection stability with the car body.

Benefits of Using an Original Mercedes Lock

Choosing a left front door lock specifically designed for the Mercedes W169 offers a range of practical advantages for everyday vehicle use:

• Full Structural Compatibility – fits factory mounting holes, linkage guides, and electrical connectors.
• Seamless Integration with Central Locking System – correct operation with control modules and vehicle wiring.
• Stable Mechanism Operation – proper door locking, reduced play, and unwanted noises during driving.
• Effortless Integration with Body Electronics – maintains comfort and safety functions related to door status monitoring.

This part comes from the Mercedes line, meaning it adheres to the manufacturer's quality standards in terms of fit, durability, and compatibility with other door system components.

Application in the "Doors and Door Panels" Category

The left front door lock mechanism is a key component within the Doors and Door Panels category, responsible for the functionality of the entire door leaf. Replacing this part is particularly important in cases of locking issues, incorrect central locking operation, or no response to remote signals.

If you need other products from the Doors and Door Panels category for this brand, check our range of Mercedes doors and door panels to select body components that are structurally consistent with your vehicle.

Selection, Installation, and Operation

When selecting a left front door lock for the Mercedes W169, pay attention to compatibility with the vehicle's body and electrical system. Using an original solution simplifies installation and reduces the need for wiring modifications. In practice, this translates to shorter service times and a lower risk of central locking problems after replacement.

During installation, it is recommended to:

• check the condition of the door wiring harness and electrical connectors,
• inspect the routing of the handle linkages,
• adjust the lock's position relative to the striker on the pillar,
• verify the operation of all locking and unlocking functions after reassembling the interior trim.

For users interested in a broader service context and the impact of body components on driving safety and comfort, the guide article Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers may be helpful, discussing the relationships between component condition and vehicle behavior on the road.