Mercedes W205 Driver's Door Lock Cylinder Barrel Guide + Key A0997602400

Mercedes W205 Driver's Door Lock Cylinder Barrel Guide + Key is a precision component from the Locks and latches category, designed for installation on the right side of the vehicle. It ensures proper guidance and interaction between the lock mechanism and the key, which translates into smooth mechanical opening and closing of the driver's door. This is a practical solution for users who want to restore the lock's efficiency while maintaining high compatibility with the factory security system.

Specifications and technical data

• SKU: RHD-A0997602400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997602400
• Substitutable numbers: A0997602400, A 099 760 24 00
• Location on the vehicle: Right
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function in the vehicle

The described component is dedicated to the driver's door in the Mercedes W205 model, positioned on the right side of the vehicle. Its task is to provide stable guidance for the lock cylinder and to work with the included key so that the rotational movement is smoothly transferred to the locking mechanism. This ensures proper lock operation even during frequent, daily use.

The guide barrel with key is suitable both for replacing a damaged part and for restoring full functionality of mechanical vehicle access, e.g., after a central locking or remote control failure.

Construction and technical features

The element has been designed as part of the mechanical door locking system, maintaining the geometry specific to the W205 body. The design of the guide ensures proper positioning of the cylinder relative to the door panel and lock rods, which reduces the risk of jamming and uneven operation.

The included key works with the barrel to ensure repeatable, reliable operation of the mechanism. The whole set forms a coherent unit that facilitates installation and reduces the need for additional component adjustments during repair.

Application in the Locks and latches system

The driver's door lock cylinder barrel guide is part of a larger system responsible for securing the vehicle cabin. It works with:

• the locking mechanism inside the door,
• the rods and levers of the outer and inner door handles,
• other components of the locking system on the driver's side.

This solution allows for maintaining consistency between mechanical operation (key) and any electronic systems that control the central locking. Replacing just the guide with the key is often sufficient to restore proper door operation without interfering with other components.

Condition and benefits of using a used part

The offered item is in used condition, which allows for an economical repair while maintaining the original installation specifications. Parts of this type are particularly valued by users and workshops that want to reduce service costs while maintaining compliance with the factory door construction.

Using an original, used component in the driver's door locking system reduces the risk of fitment issues typical of some aftermarket replacements and facilitates quick installation in workshop conditions.

Integration with other Mercedes lock components

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

For drivers interested in additional ways to optimize service costs, including the use of branded used parts, practical tips on economical servicing of popular brands may be useful – you can find them in the article Repairing a Volkswagen for pennies? Discover how to save on original car parts, which shows a universal approach to the rational selection of components.