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Original Button Switch For Mercedes FBS4 FBS3 Smart Remote Key PCB Red



Status Original
weight 0.002 KG


Brand Model From To
Mercedes Benz All all all

Red Button Switch for Mercedes FBS4/FBS3 Key Fob


Mercedes Benz stands as a symbol of automotive excellence, blending innovation, luxury, and performance seamlessly into its vehicles. At the heart of this excellence lies the sophisticated key fob system, integrating advanced technology with convenience and security. A crucial component within this system is the Red Button Switch designed specifically for Mercedes FBS4 and FBS3 smart remote keys. This comprehensive overview delves into its attributes, applications, and the benefits it brings to Mercedes Benz owners.

Product Overview:

The Red Button Switch for Mercedes FBS4 and FBS3 Key Fob is an authentic replacement part crafted to meet the stringent standards of Mercedes Benz. Engineered for compatibility and optimal performance, this switch seamlessly integrates into the key fob, ensuring reliable functionality while preserving the sleek design of the original remote.

Push Buttons

Key Attributes:

  • Status: Original
  • Weight: 0.002 KG
  • Color: Red
  • Compatibility: Designed for Mercedes Benz FBS4 and FBS3 smart remote keys

Detailed Specifications:

  • Build Quality: Constructed from premium materials, the Red Button Switch guarantees durability and sustained performance, capable of withstanding daily wear and tear.
  • Precision Engineering: Meticulously designed to match Mercedes Benz’s exact specifications, ensuring a precise fit and seamless integration into the key fob’s circuitry.
  • Ease of Installation: Engineered for straightforward replacement, the switch can be installed with minimal effort, supported by detailed instructions for a hassle-free process.


Tailored for use with Mercedes Benz FBS4 and FBS3 smart remote keys, this button switch plays a pivotal role in the vehicle’s security system. It facilitates key functions such as keyless entry, remote start, and trunk access, ensuring accurate transmission of commands for enhanced operational efficiency.


  • Enhanced Functionality: Replacement of a worn or malfunctioning button switch restores the full functionality of the smart remote key, optimizing the driving experience.
  • Aesthetic Compatibility: The red color of the button switch maintains the original design aesthetic, complementing the sophisticated look of Mercedes Benz key fobs.
  • Peace of Mind: Utilizing an original part ensures the integrity and performance of your Mercedes Benz, offering peace of mind with components that meet the highest standards of quality and reliability.

Installation Guide:

  1. Preparation: Gather necessary tools and set up a clean workspace.
  2. Disassembly: Open the key fob casing carefully, avoiding damage to internal components.
  3. Removal: Delicately detach the old button switch from the circuit board.
  4. Replacement: Position the new button switch accurately on the board.
  5. Reassembly: Securely close the key fob casing, ensuring all components are properly aligned.
  6. Testing: Verify the functionality of the key fob to confirm proper operation of the new button switch.


The Red Button Switch for Mercedes FBS4 and FBS3 Key Fob is indispensable for maintaining both the functionality and aesthetics of your Mercedes Benz key fob. With its superior build quality, precise engineering, and user-friendly installation process, this switch provides an ideal solution for enhancing and preserving the vehicle’s keyless entry system. Trust in genuine Mercedes Benz parts to uphold the performance standards of your vehicle.

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