Upgrading the infotainment system on your 2015 Mercedes-Benz E-Class can dramatically elevate your driving experience by bringing modern technology and convenience to your vehicle. While the original system was advanced for its time, today’s infotainment demands include seamless smartphone integration, intuitive touchscreens, enhanced navigation, and voice-activated controls that many older systems lack. By updating your infotainment setup, you can enjoy features such as Apple CarPlay, Android Auto, improved Bluetooth connectivity, HD radio, and advanced multimedia playback options, all integrated into your luxury sedan’s interior.

Why Upgrade the Infotainment System on a 2015 Mercedes-Benz E-Class?

The 2015 E-Class came equipped with the COMAND infotainment system, which was innovative in its era but now shows its age compared to modern standards. Upgrading the system is beneficial for several reasons:

  • Enhanced Connectivity: Newer systems support Apple CarPlay and Android Auto, allowing you to use your smartphone’s apps, navigation, and voice commands safely while driving.
  • Improved User Interface: Touchscreens with higher resolution and responsive controls replace the older rotary knobs and smaller displays, making the system easier and more intuitive to use.
  • Better Navigation: Modern infotainment units offer real-time traffic updates, 3D maps, and faster route recalculations, improving your driving efficiency.
  • Upgraded Audio Quality: Integrating a new head unit often allows for better sound processing and compatibility with upgraded speakers and amplifiers.
  • Future Proofing: Software updates and compatibility with new technologies ensure your car stays current for years, increasing resale value and driver satisfaction.

Assessing Your Current System and Needs

Before beginning the upgrade process, it’s essential to evaluate what features you want and what your current system supports. The factory COMAND system in the 2015 E-Class includes a central controller knob, a relatively small screen, and limited smartphone integration. Most versions lack Apple CarPlay and Android Auto completely, and Bluetooth functionality may be outdated or limited to phone calls only.

Ask yourself the following questions:

  • Do you want full smartphone integration, including apps, messaging, and maps?
  • Is a touchscreen interface important to you, or do you prefer physical controls?
  • Do you want to upgrade audio components alongside the infotainment system?
  • Are you interested in additional features like backup camera integration, voice control, or satellite radio?

Answering these questions helps guide your selection of the right upgrade solution.

Types of Infotainment Upgrades for the 2015 Mercedes-Benz E-Class

There are several upgrade paths, ranging from simple software updates to full hardware replacement. Here are the most common options:

1. Software and Firmware Updates

Some owners can enhance features by updating the existing COMAND system’s software through authorized Mercedes-Benz dealerships or specialized service centers. These updates may include improved Bluetooth functionality, updated navigation maps, and bug fixes. However, software updates alone typically won’t add Apple CarPlay or Android Auto support to the 2015 E-Class systems.

2. Retrofit Modules for Apple CarPlay and Android Auto

Several aftermarket companies offer retrofit kits that enable Apple CarPlay and Android Auto functionality without replacing the entire head unit. These kits usually integrate with the existing COMAND system and display, allowing you to access smartphone features through your original screen and controls. Installation involves connecting interface modules behind the dashboard and updating wiring harnesses.

  • Pros: Retains the factory look and feel, often more affordable than full system replacement.
  • Cons: May have limited touchscreen responsiveness and fewer customization options compared to a new head unit.

3. Complete Head Unit Replacement

If you desire a fully modern infotainment experience, replacing the entire head unit with an aftermarket touchscreen system is the best option. These systems offer large capacitive touchscreens, fast processors, wireless Apple CarPlay and Android Auto, advanced navigation apps, and customizable interfaces.

  • Pros: State-of-the-art features, improved audio processing, and frequent software updates.
  • Cons: Higher cost and more involved installation, may require custom dash kits and wiring adapters.

4. Additional Audio System Upgrades

Many owners combine infotainment upgrades with enhancements to the audio system, such as replacing factory speakers with high-performance components, adding external amplifiers, or installing a subwoofer. This ensures that the improved multimedia capabilities are matched by superior sound quality.

Step-by-Step Guide to Upgrading Your Infotainment System

Step 1: Research Compatible Upgrade Options

Begin by exploring the available upgrade products specifically designed for the 2015 Mercedes-Benz E-Class. Popular brands like NTG5 retrofit kits, MBUX upgrade modules, and aftermarket multimedia head units from Pioneer, Alpine, and Kenwood offer varying levels of integration and features. Consult forums such as Mercedes-Benz Owners and specialist websites to understand user experiences and compatibility.

Step 2: Define Your Budget and Desired Features

Infotainment upgrades can range from a few hundred dollars for retrofit kits to several thousand dollars for full system replacements and audio upgrades. Define your budget early and prioritize must-have features like smartphone integration, touchscreen size, and navigation quality to narrow down options.

Step 3: Select a Qualified Installer

Professional installation is highly recommended due to the complexity of Mercedes-Benz electronics and the need to maintain vehicle warranties. Choose an installer experienced with Mercedes infotainment systems, preferably certified by the manufacturer or specializing in luxury vehicles. Some retailers offer nationwide installation networks or mail-in services.

Step 4: Backup Your Existing Data

Before any work begins, back up key data from your current system, such as Bluetooth-paired devices, contacts, navigation favorites, and media libraries. This ensures a smooth transition and prevents loss of important information.

Step 5: Installation of Hardware Components

The installation process depends on the upgrade type:

  • For Retrofit Kits: Install interface modules behind the dashboard, connect wiring harnesses, and update system settings.
  • For Full Head Unit Replacements: Remove the factory COMAND unit, install dash kits to accommodate new screens, connect new wiring harnesses, integrate with vehicle controls, and test all functions.
  • For Audio Upgrades: Replace speakers, install amplifiers and subwoofers, and calibrate the sound system.

Installation typically takes several hours and may require removing trim panels and reprogramming vehicle modules.

Step 6: Software and Firmware Updates

Once the hardware is installed, update the infotainment software and firmware to the latest versions. This ensures optimal performance, security patches, and compatibility with future smartphone software updates. Your installer should perform these updates using manufacturer or aftermarket tools.

Step 7: System Calibration and Testing

After installation and updates, calibrate system settings such as screen brightness, audio equalization, microphone sensitivity for voice commands, and steering wheel control integration. Test all features thoroughly, including navigation, phone calls, media playback, and voice control to ensure everything functions correctly.

Additional Tips for a Successful Upgrade

  • Verify Compatibility: Double-check that the upgrade components are compatible with your vehicle’s VIN and production date to avoid costly mistakes.
  • Preserve Factory Features: Maintain original features like parking sensors, backup cameras, and steering wheel controls by selecting upgrade kits that support these functions.
  • Consider Wireless Options: Look for systems offering wireless Apple CarPlay and Android Auto for added convenience without the need to plug in your phone constantly.
  • Use High-Quality Components: Choose reputable brands and OEM-quality parts to ensure reliability and integration without glitches.
  • Plan for Future Updates: Select systems that offer regular software updates and easy access to new features as they become available.

Common Challenges and How to Overcome Them

Compatibility Issues

Older Mercedes models like the 2015 E-Class use proprietary connectors and software protocols, which can complicate integration with aftermarket parts. To avoid compatibility problems, purchase upgrade kits specifically designed for your model year and trim level.

Complex Installation

Retrofitting modern infotainment technology involves handling delicate wiring, removing trim panels, and integrating with vehicle CAN bus systems. Attempting a DIY installation without expertise can lead to damage or malfunction. Always rely on professional installers experienced with Mercedes-Benz electronics.

Maintaining Vehicle Warranty

Infotainment upgrades performed outside authorized Mercedes-Benz service centers may affect your warranty coverage. Discuss upgrade plans with your dealer or choose installers who provide warranty-compliant solutions.

Software Update Limitations

Some older infotainment systems cannot be updated to support newer smartphone protocols like wireless CarPlay or Android Auto. In such cases, a complete head unit replacement or retrofit module is necessary rather than a simple software update.

Cost Considerations

The total cost of upgrading the infotainment system on a 2015 Mercedes-Benz E-Class varies widely depending on the scope of the upgrade:

  • Software Updates: $100 to $300
  • Retrofit Apple CarPlay/Android Auto Kits: $500 to $1,200
  • Full Head Unit Replacement: $1,500 to $3,500 (including parts and professional installation)
  • Audio System Upgrades (speakers, amps, subwoofers): $500 to $2,000+

While the investment may seem significant, the enhanced convenience, safety, and enjoyment of a modern infotainment system can greatly improve your daily driving experience and the vehicle’s resale value.

Conclusion

Upgrading the infotainment system on your 2015 Mercedes-Benz E-Class is a worthwhile investment that brings your luxury sedan into the modern era of connected driving. Whether you opt for a simple retrofit to enable Apple CarPlay and Android Auto or a full touchscreen head unit replacement combined with audio enhancements, the right upgrade will improve safety, entertainment, and convenience.

By carefully researching compatible components, working with qualified professionals, and backing up your data, you can ensure a smooth upgrade process with lasting benefits. Regularly updating your system’s software and maintaining your audio equipment will keep your infotainment experience fresh and enjoyable for years to come.

For more information on Mercedes-Benz upgrades and accessories, explore our other detailed guides and expert reviews at Everyday Mercedes Accessories and Upgrades.