Mercedes C205 Door Lock Latch Mechanism Actuator Front Right O/S A0997203500

The Mercedes C205 Right Front Door Lock is an original locking mechanism with a built-in actuator, designed for installation on the driver's side in right-hand drive versions. This item from the Locks and Latches category is responsible for precise door locking and unlocking, ensuring safe and stable operation of the closing system in a coupe body style.

Specifications and technical data

• SKU: rhd-A0997203500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997203500
• Substitutable numbers: A0997203500, A 099 720 35 00, A0997208601, A 099 720 86 01, A2220063999, A 222 006 39 99
• Location on the vehicle: Front, Right
• Category: Exterior Locks & Lock Hardware

Vehicle Application and Function

The presented door lock is dedicated to the front right door of the Mercedes C-Class generation C205. The mechanism works with the factory electrical system and central locking system, responsible for:

• mechanical locking of the door leaf to the body pillar,
• transmitting drive from the actuator to the lock latches,
• cooperation with the external and internal door handle,
• correct response to signals from the remote control and central locking.

Thanks to its proper fit to the coupe door construction, the lock maintains a stable position of the door leaf, which translates to correct closing, reduced play, and appropriate acoustic and aerodynamic sealing.

Mechanism Design and Advantages of the Original Solution

The mechanism combines a mechanical part and an electric actuator in one housing, simplifying installation and servicing. The original Mercedes design ensures:

• compatibility with factory guides and mountings in the door,
• correct geometry of the strikers cooperating with the lock bolt in the pillar,
• actuator operating characteristics designed for the specific model,
• proper cooperation with the vehicle's body electronics and comfort system.

This solution reduces the risk of problems with incomplete closing, excessive door handle resistance, or communication errors in the vehicle network. The Original Mercedes Door Lock allows for maintaining the factory operating parameters of the closing system without the need for modifications.

Vehicle Placement and Fitment

The component is designed for installation on the front right side, which is important both in terms of housing shape, lever operating direction, and linkage routing. Correct placement on the vehicle guarantees:

• proper alignment with the door and pillar structure,
• compatibility with the factory system of handles and linkages,
• seamless integration with the central locking and comfort module.

This makes installation a matter of transferring the wiring harness, linkages, and bolting the lock into the original mounting points, without the need for adaptation or bodywork modifications.

Condition, Origin, and Service Application

The offered door lock comes from the Mercedes-Benz OE line, which means compliance with the manufacturer's factory design and material standards. As a used part, it is a good choice in situations where:

• the original lock has suffered mechanical damage (e.g., after a collision or attempted break-in),
• there are problems with the central locking actuator in the right door,
• irregular locking errors or no response to the remote signal occur.

Replacing it with an original mechanism restores the correct operation of the closing system without compromising fit and integration with the vehicle's electronics.

Related Products and Technical Knowledge

If you are looking for other Mercedes Locks and Latches for your car, check out the Mercedes Locks and Latches available in our store to select parts that match your specific model and body version.

When planning comprehensive repairs, it is also worth taking care of other vehicle components. More practical tips on operation and parts selection can be found in the article Reliability under the star – how to care for engine accessories in popular Mercedes-Benz C-Class and E-Class models?, which helps in consciously planning the servicing of cars of this brand.