Retrofitting the W465 AMG Performance Steering Wheel into older Mercedes-Benz models, particularly those that did not originally come with this specific steering wheel, can be complex and typically requires the addition of several modules and components to ensure full functionality. These include modules that control the airbag system, electronic steering, infotainment integration, and other steering wheel controls. Here's a breakdown of the modules and parts you might need:

1. Steering Column Control Module (SCCM):

• Purpose: This module manages the communication between the steering wheel controls (e.g., buttons, paddles, and multi-function switches) and the vehicle’s electronic systems.
• Requirement: If the original column control module is incompatible with the AMG Performance Steering Wheel, a replacement or retrofit version of the SCCM might be required, compatible with the AMG wheel's controls.

2. Airbag Control Module:

• Purpose: The airbag control module monitors and activates the airbags in the event of a collision. The AMG steering wheel may have a different airbag connector and system compared to non-AMG models.
• Requirement: You may need an updated or additional airbag control module to ensure proper communication between the AMG steering wheel's airbag and the vehicle’s airbag system. This module needs to be programmed to match the new wheel's airbag configuration.

3. Steering Wheel Electronics/Connectivity Module:

• Purpose: The electronic connections for controlling the wheel's functions (such as paddle shifters, drive mode selectors, volume controls, etc.) might differ between vehicles, especially across different model years.
• Requirement: A new electronic connectivity module may be necessary to allow communication between the new steering wheel and the car’s infotainment system and other control systems. The module must support multi-function controls, MBUX integration, and other advanced features of the AMG wheel.

4. CAN Bus Communication Module:

• Purpose: The CAN Bus (Controller Area Network) system connects various electronic systems in the vehicle. The AMG Performance Steering Wheel requires specific CAN Bus modules to ensure that the data from the wheel's buttons, paddles, and other controls is communicated to the car's systems.
• Requirement: In some cases, older vehicles may need an updated CAN Bus interface or additional wiring to make the new steering wheel fully functional.

5. Paddle Shifter Modules:

• Purpose: If the AMG Performance Steering Wheel includes paddle shifters for manual gear shifting, the existing shifter system may need to be modified or upgraded.
• Requirement: Depending on the vehicle, you may need to add electronic paddle shifter modules or retrofit existing ones to support the paddle shifting functionality.

6. Drive Mode Switch or Button Module:

• Purpose: Many AMG wheels come with dedicated buttons to control different drive modes (e.g., Sport, Comfort, Individual, etc.), which affect the vehicle’s performance settings.
• Requirement: If your car does not already have a drive mode selector, you may need to install a separate drive mode switch or a button module to integrate with the new steering wheel’s controls.

7. Infotainment and Digital Cockpit Integration Module:

• Purpose: If your vehicle is not equipped with the latest MBUX or digital cockpit system, the AMG Performance Steering Wheel might need additional integration modules to work seamlessly with the car’s infotainment system.
• Requirement: This includes modules that connect the steering wheel’s touch-sensitive controls, buttons, or display functions with the MBUX interface or any other system that displays information on the dashboard.

8. Wiring Harness and Adapter Kits:

• Purpose: The wiring for buttons, paddles, airbags, and electronics on the AMG steering wheel may differ from the original wiring setup.
• Requirement: A wiring harness designed specifically for the AMG wheel might be necessary to route all the electrical connections properly. Additionally, you may need adapter kits to connect the AMG Performance Steering Wheel to the existing vehicle systems.

9. Steering Angle Sensor Module:

• Purpose: The steering angle sensor measures the position of the steering wheel and ensures the car's electronic stability control (ESC) and other handling features are working correctly.
• Requirement: Depending on your car's configuration, the steering angle sensor might need to be calibrated or replaced to accommodate the AMG Performance Steering Wheel.

10. Retrofitting Software and Calibration:

• Purpose: After all the necessary hardware is installed, the vehicle's software will need to be updated and recalibrated to ensure all features of the new steering wheel work as intended.
• Requirement: Specialized software is often required to integrate the AMG wheel’s electronics with the existing vehicle systems. This includes coding the vehicle to recognize the new components, such as the paddle shifters, steering wheel buttons, and any unique features of the AMG wheel.

Summary of Key Modules for Retrofitting:

• Steering Column Control Module (SCCM)
• Airbag Control Module
• Steering Wheel Electronics/Connectivity Module
• CAN Bus Communication Module
• Paddle Shifter Modules
• Drive Mode Switch/Button Module
• Infotainment and Digital Cockpit Integration Module
• Wiring Harness and Adapter Kits
• Steering Angle Sensor Module
• Retrofitting Software and Calibration

Professional Assistance:

Due to the complexity and potential need for specific coding, wiring, and integration, it’s recommended to have this retrofit performed by a Mercedes-Benz dealership or an experienced specialist in AMG retrofits. They will have the tools, modules, and expertise to ensure the steering wheel is properly fitted and fully functional.

Conclusion:

Retrofitting the AMG Performance Steering Wheel into an older Mercedes-Benz model requires several key modules and potentially modifications to the vehicle’s existing systems. The process involves ensuring compatibility with the car’s airbag, electronic controls, and infotainment system. Working with professional technicians is crucial to ensure proper installation and integration of all functions.