Mercedes SLK R171 Door Lock Front Left N/S Latch Mechanism Actuator A1717202335

Mercedes SLK R171 Door Lock Front Left N/S Latch Mechanism Actuator is a precision locking mechanism designed for installation on the driver's side. This component combines the functions of a lock, latch, and actuator, ensuring proper closing, locking, and unlocking of the door within the central locking system. Thanks to its design compliant with the manufacturer's standards, it is a solution technically matched to the specifics of the SLK R171 body.

Specifications and technical data

• SKU: rhd-A1717202335
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1717202335
• Substitutable numbers: A1717202335, A 171 720 23 35
• Location on the vehicle: Front, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The presented lock is intended for installation in the front left door, i.e., on the driver's side. It is responsible for working with the external and internal door handles, the interior locking mechanism, and the central locking system. A properly functioning door lock in a Mercedes SLK R171 is crucial for:

• secure door locking while driving and when parked,
• efficient opening and closing using the remote control or key,
• proper interaction with the vehicle's comfort electronics.

Mechanism construction and technical characteristics

The mechanism combines the mechanical part responsible for locking and the executive part acting as an actuator in one housing. This design reduces the number of connections and facilitates installation in the door. The lock is factory-matched to the geometry of the SLK R171 door, which translates into:

• stable guidance of the latch in the pillar striker,
• proper cooperation with door handle rods and cables,
• appropriate response to signals from the central locking system.

By using the original Mercedes design, compatibility with the factory safety and comfort system is maintained, without the need for modifications to the installation or mounts.

Benefits of using the original door lock

Choosing the original front left door lock for the Mercedes SLK R171 allows you to avoid problems typical of replacements, such as inaccurate fitment or unstable latch operation. The main advantages include:

• Full body compatibility – matched mounting points and geometry that works with factory door handles.
• Proper interaction with electronics – correct operation with the central locking and comfort module.
• Reduced risk of door leaks due to proper closing of the door leaf.
• Stable operation of the mechanism during repeated opening and closing.

Condition and service application

The item comes from the Locks and latches category and is intended as a service part for problems with opening, closing, or locking the driver's side door. It will be particularly useful in situations where there are:

• no door response to commands from the remote or key,
• the need to pull the handle multiple times to open the door,
• uncertain closing or automatic unlocking.

Using the original mechanism allows you to restore the factory functionality of the locking system without interfering with the door structure.

Repair scope expansion and additional materials

If you are planning a comprehensive repair or upgrade of the door lock area in your Mercedes and need other elements from the same group, such as locking mechanisms, actuators, or lock cylinders, check the available parts in the Mercedes Locks and latches category.

For users interested in a broader approach to service and maintenance of cars of this brand, technical materials regarding power units may also be useful. In the context of models equipped with the OM642 engine, it is worth reading the article Second life of the Mercedes OM642 engine – how injectors and a turbocharger restore the power of the 3.0 V6 CDI, which discusses the characteristics, typical faults, and a refresh plan for this popular diesel engine.