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BMW CAS Car Access Systems Failures and Solutions

BMW vehicles are renowned for their performance, design, and advanced technology. However, E-Chassis models may experience issues with their CAS control units, also known as Car Access System control units. 

These units serve as the immobilizer master in E-Chassis BMW vehicles, while in later F and G Chassis models, the CAS is integrated in other modules.

 In this article, we will focus on E-Chassis vehicles and explore the benefits of Y Tech’s remanufactured CAS units with upgraded hardware.

Understanding BMW CAS Control Units and Terminals

The CAS control unit plays a vital role in your BMW, managing various operations, including terminal control. Here’s a quick recap of the key terminals in your BMW:

  • Terminal 30: Provides constant battery power.
  • Terminal 15: Activates ignition-on power after key authentication, controlled by the CAS.
  • Terminal 50: Responsible for starter control.

A failing CAS module often results in a lack of terminal 15 and 50 functions, leading to performance issues and potential immobilization of the vehicle.

Why Choose Y Tech’s Remanufactured CAS Units

Y Tech Automotive Solutions offers remanufactured CAS units with upgraded hardware for your E-Chassis BMW vehicle. Our plug-and-play solution provides several advantages:

  • Upgraded Hardware: Our remanufactured CAS units come with enhanced hardware to ensure improved performance and reliability.
  • Plug-and-Play Solution: We offer pre-programmed CAS units that are ready to be installed, providing a hassle-free and efficient solution.
  • Cost-effective: Our remanufactured CAS units are a more affordable option compared to purchasing a new unit from the dealership, without compromising on quality or performance.
  • Rigorous Testing: Each remanufactured CAS unit undergoes stringent testing and inspection to ensure optimal functionality and durability.
  • Expert Support: Our team of skilled technicians is available to assist with any questions or concerns regarding the installation and operation of your remanufactured CAS unit.

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