Mercedes-Benz W246 M270 Engine B180 Lockset | Genuine Ignition Switch & Security Module

Description

When dealing with security and ignition issues in your Mercedes-Benz B-Class (W246), reliability is non-negotiable. Whether you are troubleshooting a failure in the Electronic Ignition Switch (EIS/EZS) or need to restore full central locking and key recognition, our workshop-vetted lock sets are the professional solution.

Please note that for the W246 generation, “lock set” refers to the Electronic Ignition Switch (EIS) module, which is the core of your vehicle’s security system. Unlike older models with physical mechanical barrels, this is a sophisticated electronic component that handles immobilization and key-pairing.

• Factory-Spec Integration: These modules are genuine OEM Mercedes-Benz components, ensuring full compatibility with your vehicle’s existing anti-theft system and immobilizer logic.

• Restores Key Recognition: If your B180 has issues starting, intermittent “key not recognized” errors, or electronic steering lock failures, replacing the EIS module is often the required fix.

• Workshop-Vetted Performance: Each unit is tested for signal integrity and circuit health, ensuring you aren’t stuck with the same electronic gremlins found in cheaper, non-original replacements.

Important Technical Note for W246 Owners

On the W246 (2011–2018) platform, the “lock set” is highly vehicle-specific. Because these components are tied to your car’s immobilizer (FBS4 system), they cannot simply be swapped between vehicles.

• Programming Required: If you are buying a used or replacement EIS module, it must be programmed/synchronized to your car’s Engine Control Unit (ECU) and your existing keys.

• VIN Verification: We strongly recommend providing your 17-digit VIN before ordering. This allows us to ensure you get the correct part number (e.g., A2469059900 or similar variants) for your specific B180 trim and build date.

• Component Scope: A typical lock set replacement may involve the EIS module (the ignition switch on the dashboard) and, in some cases, the Steering Column Module if your steering lock has failed.

Common Signs Your Ignition Lock/Security Module is Failing:

• “No Start” Condition: You insert the key, and nothing happens—no dashboard lights, no “click” from the steering lock.

• Intermittent Key Recognition: The vehicle starts sometimes but requires multiple attempts, often worsening in hot or cold weather.

• Electronic Steering Lock (ESL) Failure: The steering wheel stays locked even when the key is inserted and turned, preventing the vehicle from starting.

• Dash Cluster Errors: Persistent warnings related to the immobilizer or security system.

Workshop Pro-Tip: Many “ignition” issues on the W246 are actually caused by low battery voltage or a failing key fob battery. Before replacing your expensive EIS module, ensure your main car battery is holding a full charge (above 12.4V) and test your spare key. If the spare key works, the issue is likely your key fob, not the lock set!

Key Features:

• Genuine Mercedes-Benz Security: Engineered to meet the exact security standards of the W246 B-Class.

• Electronic Precision: Restores the complex handshake between the key, the EIS, and the engine management system.

• Condition: Premium workshop-vetted original component; tested for electronic responsiveness.