Door Lock Mercedes W204 W212 Front Left N/S Mechanism Actuator A0997200735

Door Lock Mercedes W204 W212 Front Left N/S Mechanism Actuator is an original mechanism with an actuator designed for installation on the driver's side. The component belongs to the Doors and door panels group and ensures proper, stable operation of the central locking system and secure door latching in Mercedes mid-size luxury cars.

Specifications and technical data

• SKU: rhd-A2047203735-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2047203735
• Substitutable numbers: A2047203735, A 204 720 37 35, A0997200735, A 099 720 07 35, KD
• Location on the vehicle: Front, Left
• Category: Doors & Door Skins

Purpose and vehicle placement

The presented lock is designed for installation in the front left door area, i.e., on the driver's side. The precise construction of the mechanism works in conjunction with the factory handle system, linkages, and the electrical installation responsible for controlling the actuator. This ensures full functionality of opening, closing, and locking the doors via the remote control, lock cylinder, and interior cabin buttons.

Technical and functional characteristics

The mechanism combines a mechanical part and an electric actuator, which enables smooth operation of the central locking system and compatibility with factory comfort systems. Properly selected gear ratios and guides ensure repeatable door closing, and the housing design is adapted to the factory mounting points in the Mercedes W204 and W212 doors. Using an original solution reduces the risk of play, rattling, and closing issues that often occur with imprecisely fitted replacements.

Benefits of using an original lock

Using an original lock with an actuator in the front left door translates into several significant operational benefits:

• maintenance of factory compatibility with the central locking system and vehicle electronics,
• stable door latching, which improves safety during driving and parking,
• proper fitment with the door structure, without the need for mounting modifications,
• reduced risk of failures resulting from inaccurate component matching.

As a component from the Doors and door panels group, the lock has a direct impact on the comfort of daily vehicle use – from the convenience of entering the car to the proper operation of the entire body locking system.

Condition and service application

The offered lock is a used part, which allows for an economical repair of the locking system while maintaining the manufacturer's original specifications. This is a practical solution in situations where the existing mechanism has worn out, suffered mechanical damage, or stopped responding to the central locking system. Replacing it with an original part of this type is particularly beneficial for post-accident repairs and for resolving issues with doors not latching, lack of response to the remote, or sporadic door locking.

Mercedes doors and door panels – expansion and modernization

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

Preparing the car for the season and operation

A functional front left door lock is important not only for comfort but also for protecting the interior from moisture, frost, and dirt, especially during the autumn and winter season. While inspecting the bodywork and door components, it is worth verifying the condition of other operational sub-assemblies. Practical tips, checklists, and a discussion of used parts that are worth checking before the arrival of low temperatures can be found in the article Winter essentials: which used car parts are worth checking and replacing before the frost?.