Mercedes W163 Rear Left Door Lock Mechanism Actuator A1637302535

Mercedes W163 Rear Left Door Lock Mechanism Actuator is an original component from the Doors and door panels group, designed for installation in the rear left section of the vehicle body. It ensures proper locking, opening, and closing of the door, restoring factory functionality and safe operation of your Mercedes vehicle. This solution is particularly beneficial for professional body repairs where compliance with the manufacturer's design is essential.

Specifications and technical data

• SKU: A1637302535
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1637302535
• Substitutable numbers: A1637302535, A 163 730 25 35, AS
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and vehicle placement

The presented lock is dedicated to installation in the rear left part of the body, in the passenger or cargo door area, depending on the body configuration of the Mercedes W163. This placement is crucial both for proper fitment with the door panel and for interaction with the handle mechanism, rods, and any central locking actuators.

Selecting the correct lock for the specific position on the vehicle reduces the risk of problems with closing, leaks, or incorrect operation of the central locking system. The component has been designed to maintain the geometry of the factory doors, which facilitates installation and adjustment.

Technical and functional characteristics

The rear door lock is responsible for several key operational functions:

• mechanical locking of the door leaf in the closed position,
• interaction with the external and internal handle,
• transferring movement from control rods or cables,
• integration with the central locking system (if present in the specific vehicle configuration).

Thanks to a design consistent with factory solutions, the lock maintains appropriate mounting rigidity and operational stability over a long period of use. Properly selected mounting points and the shape of the housing allow for precise positioning relative to the door panel and body pillar, which translates into smooth closing and reduced play.

Component condition and service application

The offered lock is a used component, which in workshop practice often represents a favorable compromise between repair costs and maintaining the manufacturer's original specifications. Such components are frequently used for:

• post-accident repairs in the rear door area,
• troubleshooting issues related to lack of locking or problems with opening,
• vehicle restoration where preserving original design solutions is a priority.

Using an original lock in a Mercedes W163 reduces the need for alterations, adjusting mounts, or modifying rods, which shortens repair time and reduces the risk of subsequent operational problems.

Benefits of using an original door lock

Choosing a component such as Mercedes W163 Rear Left Door Lock Mechanism Actuator brings a number of practical advantages:

• Factory fitment – design consistent with the vehicle manufacturer's specifications, with no need for adaptation.
• Stable mechanism operation – proper interaction with handles, rods, and any central locking system.
• Support for passive safety – a properly functioning lock reduces the risk of accidental door opening while driving.
• Optimization of service costs – a used original component often provides a better fit than aftermarket parts with uncertain specifications.

Expanding the door area in your Mercedes

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other elements from the same group, such as skins, reinforcements, or additional mounting hardware, check out the available parts in the Mercedes Doors and door panels category.

Eco-tuning and the use of used parts

Choosing a used door lock aligns with a vehicle maintenance approach that values both service costs and reducing environmental impact. Reusing functional body components helps reduce waste and raw material consumption while maintaining the required functionality. If you would like to learn more about the possibilities of combining performance, durability, and a responsible approach to automotive maintenance, it is worth reading the article Eco-tuning in practice: how to increase performance while reducing your carbon footprint with recycled parts.