Mercedes W213 Door Lock Latch Mechanism Actuator Rear Left N/S A0997304100

Mercedes W213 Rear Left Door Lock Actuator A0997304100 is an original part from the locks and latches category, designed for the rear left door of the W213 body style. Its precise construction ensures proper integration with the factory locking system, central locking, and the vehicle's electrical system. This is a solution for users who expect stable actuator operation and correct door closure after repair.

Specifications and technical data

• SKU: A0997309500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0997309500
• Substitutable numbers: A0997309500, A 099 730 95 00, A0997304100, A 099 730 41 00, KD
• Location on the vehicle: Rear, Left
• Category: Exterior Locks & Lock Hardware

Vehicle Application and Placement

The presented door lock actuator is designed for installation in the rear left door of the Mercedes E-Class W213 generation. Its placement in the vehicle is factory-defined, allowing the part to work seamlessly with the original door handle, linkages, and door wiring harness without any modifications.

This precise fit minimizes the risk of leaks, play, or improper door closure, which is important for both acoustic comfort and driving safety.

Actuator Construction and Function

The door lock actuator is responsible for several key functions within the vehicle's body system:

• executes the locking and unlocking process of the door via the central locking system and the door handle/key cylinder,
• stabilizes the door panel in the closed position,
• transmits the closing status signal to the vehicle's onboard systems,
• integrates with the vehicle's factory security features.

Thanks to its construction conforming to the manufacturer's standards, the actuator maintains the correct operating geometry, resulting in smooth door opening and closing, and consistent, reliable locking.

Benefits of Using an Original Mercedes Lock Actuator

Using a genuine Mercedes part helps maintain the technical integrity of the entire body system. The most significant advantages include:

• factory fitment for the rear left door of the W213,
• preservation of the original central locking system's performance characteristics,
• correct integration with the vehicle's electronics,
• reduction of issues such as doors not closing fully, bouncing back, or dashboard error messages.

For workshops and users, this translates to shorter installation times, fewer adjustments, and more predictable performance after replacement.

Condition and Service Application

The offered actuator is part of the used Mercedes locks and latches group, making it an attractive solution for post-accident repairs, door servicing after corrosion, or wiring harness replacement. It is a practical alternative to new components, especially for older W213 models where cost optimization while maintaining factory specifications is crucial.

The part is suitable for both professional dealerships and independent workshops performing bodywork and locking system repairs on Mercedes vehicles.

Related Products and Resources

If you are looking for other Mercedes locks and latches compatible with various models from this brand, please check our dedicated category: Mercedes Locks and Latches. This will help you easily select compatible actuators for other doors or body styles.

When planning more extensive repairs of electrical systems and accessories, it is also worth consulting the guide on our blog: When is it Worth Replacing an Alternator with a Used One – A Practical Guide for Drivers. This will help you better assess situations where using used components is technically justified and economically beneficial.