Description
Right Front Door Lock for Mercedes W204 / R172 is an original part from the locks and latches category, designed for installation on the passenger side of the front door. This factory locking mechanism with a built-in actuator ensures secure closing, stable door holding, and proper integration with the vehicle’s central locking system and electronics.
Specifications and technical data
- SKU: rhd-A2047203635-6
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A1727601040
- Substitutable numbers: A1727601040, A 172 760 10 40
- Location on the vehicle: Front, Right
- Category: Exterior Locks & Lock Hardware
Vehicle Application and Placement
The presented lock is dedicated for installation in the front right door, ensuring a precise fit with the door structure and guides in Mercedes W204 and R172 models. Correct placement on the vehicle minimizes the risk of stress, leaks, and closing issues, while also facilitating the operation of the external and internal door handle mechanisms.
Construction and Function of Mercedes Door Lock
The factory right front door lock combines a locking mechanism with an electric actuator in a single housing. This allows it to:
- ensure smooth locking and unlocking of the door via the central locking system,
- maintain a stable door position while driving,
- integrate with the vehicle’s electrical system and comfort control units,
- reduce play and rattling caused by wear in faulty locks.
The original design, intended by the vehicle manufacturer, preserves the factory safety and usability parameters without the need for modifications to the wiring or mounting points.
Benefits of Using an Original Lock and Latch
Choosing a part from the locks and latches category originating from Mercedes offers a range of practical benefits:
- factory fit with door panels and guides,
- correct integration with the factory central locking system and alarm,
- preservation of the original operating characteristics of handles and rods,
- reduced risk of comfort system errors caused by incompatible aftermarket parts.
This ensures predictable installation and a final result close to the factory condition, without the need for part adjustments or interference with the electrical system.
Condition, Verification, and Preparation for Installation
This part is a used item, offered as a used right front door lock for Mercedes. This type of part allows for an economical repair of the locking system while maintaining original manufacturing quality. Before installation, a standard inspection of the door’s systems (guides, hinges, wiring harness) is recommended, along with correct positioning of the lock relative to the door pillar, which affects closing smoothness and sealing.
Selecting the Right Lock and Additional Information
To select the correct lock for a specific body style and model year, it is advisable to compare the part numbers with the existing component and verify compatibility with service documentation. The product has assigned part numbers and interchangeable numbers, which facilitates identification in catalogs and service systems.
If you need other Mercedes locks and latches for your car, check the Mercedes locks and latches available in our store to find a complete solution for all doors.
In case of issues with the engine unit’s operation, especially in diesel engines, a guide on fuel system diagnostics may be helpful – find more information in the article Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails.
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