Ignition Switch Mercedes W176 W246 Key Reader Lock Control Unit A2469051402

Visual condition of the part

The product shows signs of use visible in the photos.

Ignition Switch Mercedes W176 W246 Key Reader Lock Control Unit is an original component from the Ignition Accessories group, designed for factory installations in Mercedes vehicles. It enables the proper operation of the electronic key, ensuring smooth engine starting and secure driver authorization.

Specifications and technical data

• SKU: A2469051402-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2469051402
• Substitutable numbers: A2469051402, A 246 905 14 02
• Category: Ignition Modules

Purpose and function in the vehicle

The presented ignition switch with key reader is responsible for communication between the key and the vehicle's ignition system. This component works with the body electronics, enabling:

• recognition of the encoded key and access authorization,
• initiation of the ignition sequence,
• transmission of the signal to the systems responsible for engine starting.

As a result, the driver receives consistent ignition system performance, and the vehicle maintains the required level of electronic security.

Construction and technical properties

The ignition switch integrated with the key reader has been designed as a component that works with the factory Mercedes security system. The design includes:

• a dedicated slot for the electronic key,
• a set of sensors and electronics responsible for code reading,
• an interface for connection to the vehicle's electrical system.

The original origin from the Ignition Accessories line means a perfect fit for the electrical architecture of the W176 and W246 models, which facilitates installation and reduces the risk of compatibility issues.

Condition, installation, and service application

The offered component is in used condition, making it an attractive service solution while maintaining factory specifications. The ignition switch with key reader will be particularly useful in situations such as:

• failure of the existing ignition switch or problems with key reading,
• repair after mechanical damage within the steering column area,
• restoring the efficiency of the ignition system after interference with the electrical installation.

Due to the nature of the component, installation by a qualified service center is recommended, following the manufacturer's procedures and proper adaptation in the vehicle's electronic systems.

Benefits of using an original ignition switch

Using a factory key reader in a Mercedes brings a number of practical benefits:

• Full integration with vehicle electronics – maintaining proper cooperation with comfort and security modules.
• Stable operation of the ignition system – reducing the risk of communication errors with the key.
• Service restoration of functionality – the ability to restore system operation without the need for costly replacement with a new part.

For users who value the consistency of electronic systems in their Mercedes, choosing an original ignition switch with a key reader is a technically sound and predictable solution in operation.

Configuration expansion and additional materials

If you are planning a comprehensive repair or upgrade of the ignition system area in your Mercedes and need other elements from the same group, such as control modules, coils, or additional ignition components, check the available parts in the Mercedes Ignition Accessories category.

If you are also thinking about improving the ergonomics of the driver's area and want to better match the equipment to your driving style, the guide article Personalization and ergonomics – when is it worth replacing the steering wheel with a premium model? may be helpful, in which practical aspects of choosing sports and premium steering wheels are discussed.