Mercedes-Benz A-Class W169 Rear Left Door Lock Mechanism Actuator A1697302135

Mercedes-Benz A-Class W169 Rear Left Door Lock Mechanism Actuator is an original component from the Doors and door panels group, designed for the rear left side of the vehicle body. It ensures the proper operation of locking, opening, and closing the door, restoring factory functionality and secure latching in your Mercedes.

Specifications and technical data

• SKU: A1697302135
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1697302135
• Substitutable numbers: A1697302135, A 169 730 21 35, A1697600404, A 169 760 04 04, EM
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and function of the door lock

The presented mechanism is dedicated to installation in the rear left door area, where it is responsible for interacting with the handle, rods, and the central locking control system. A correctly selected lock eliminates issues with improper closing, self-opening, or lack of response to the remote control signal.

Thanks to the factory design intended for a specific Mercedes model, the component maintains the correct mounting points, geometry, and latch operating range, which translates into stable closing and repeatable performance in daily use.

Construction and fitment for Mercedes A W169

The lock mechanism has been designed by the vehicle manufacturer with integration into the factory door panel, guides, and seals in mind. The appropriate shaping of the housing and operating arms enables:

• precise fitment with the door structure on the rear left side,
• proper latch guidance relative to the body pillar,
• stable cooperation with the factory central locking system and cylinder (if applicable),
• maintenance of tightness and reduction of vibration transmission to the door skin.

The original origin from the Mercedes group means compliance with factory assembly tolerances is maintained, which facilitates service and limits the need for additional adjustments after replacement.

Benefits of using the original mechanism

Using the correct door lock in a Mercedes A W169 allows you to restore the comfort of operation and vehicle safety. Key advantages include:

• Stable locking – the door remains securely closed while driving, even at higher speeds.
• Correct cooperation with electronics – the mechanism is adapted to work with the factory lock control system, which minimizes the risk of errors and dashboard messages.
• Reduction of play and rattling in the door area, which affects the perceived body rigidity and acoustic comfort.
• Possibility of servicing in accordance with manufacturer procedures, without the need for modifying the installation or mountings.

Characteristics of the used component

The offered lock is a used part, sourced from dismantling, which allows for a favorable cost-to-quality ratio while maintaining the original technical specification. This type of solution is particularly attractive for maintenance repairs when you want to maintain the factory standard of workmanship without investing in more expensive aftermarket replacements.

By choosing an original, used mechanism, you gain a component with a proven design, specifically engineered for the given model, which reduces the risk of assembly issues and speeds up the replacement process itself.

Support with selection and repair expansion

If you are planning a comprehensive repair or modernization of the side body area in your Mercedes and need other elements from the same group, such as skins, reinforcements, or window guides, check out the available parts in the Mercedes Doors and door panels category.

In the case of extensive service work, including the exhaust system or performance-oriented modifications, you can look for additional information on selecting used components and their impact on vehicle operation in the article Performance exhaust system: used manifolds and sports catalytic converters on the road, which covers practical aspects of using second-hand parts in premium brand cars.