1. Introduction
This manual provides detailed instructions for the installation and operation of your Bonroad Wireless CarPlay & Android Auto Smart Adapter. This device is designed to seamlessly integrate advanced smartphone connectivity features into your Mercedes Benz vehicle's existing NTG 6.0 MBUX system, enhancing your driving experience with modern navigation, communication, and entertainment options while retaining original car functionalities.
2. Product Overview
2.1 Key Features
- Wired/Wireless Apple CarPlay and Android Auto support.
- Screen mirroring function for both Apple (AirPlay) and Android devices (Autolink).
- USB multimedia playback for audio (lossless media), 720P video, and picture files.
- Support for original car's rear-view camera and parking radar.
- Compatibility with aftermarket rear-view cameras (CVBS/AHD) and 360-degree view systems (CVBS/AHD).
- Front-view camera support (configurable).
- Audio EQ adjustment and separate volume control for music and navigation.
- Utilizes the original car's microphone (if installed) and supports automatic correction for calling.
- Retains the original Bluetooth call function of the vehicle.
- AUX-in function for expanding with external devices like digital TV.
Figure 1: Main Features of the Bonroad Smart Adapter
2.2 Compatible Car Models
This adapter is specifically designed for Mercedes Benz vehicles equipped with the NTG 6.0 MBUX System and a 10.25" or 12.3" touch display, manufactured between 2019 and 2022. Please verify your car's system before installation.
- Mercedes Benz A Class A200 W177 (2019-2022)
- Mercedes Benz B Class B180 B200 (2020-2022)
- Mercedes Benz GLC Class GLC300/GLC260 W253 (2020-2022)
- Mercedes Benz E Class E300 (2020-2022)
- Mercedes Benz CLA200 (2020-2022)
- Mercedes Benz GLA200/180 (2020-2022)
- Mercedes Benz GLE300/350/400 (2020-2022)
- Mercedes Benz GLB180/200 (2020-2022)
- Mercedes Benz GLS/CLS (2020-2022)
Figure 2: Verify NTG 6.0 MBUX System Compatibility
3. Package Contents
Please check the package to ensure all items are present:
- Bonroad Smart Adapter Main Unit
- Main Wiring Harness
- LVDS Cable
- USB Cable
- Microphone
- GPS Antenna
- Adhesive Pad
- AUX Audio Interface Box (Sound Card)
Figure 3: Product Information and Included Components
4. Installation Guide
Professional installation is recommended. Ensure the vehicle's power is disconnected before beginning installation.
4.1 Pre-Installation Check
- Confirm your Mercedes Benz model and year are listed in the compatible models section (Section 2.2).
- Verify your vehicle has the NTG 6.0 MBUX System with a 10.25" or 12.3" touch screen.
- Ensure all components listed in Section 3 are present.
4.2 Wiring Diagram
Refer to the diagram below for proper connection of the adapter to your vehicle's system. This diagram illustrates the connections for power, video signals (LVDS), audio, USB, and camera inputs.
Figure 4: NTG6.0 Installation Diagram
Key to Diagram Controls:
- Switch (Long Press) / Home
- Return
- Previous / Next Tune
- Siri
- Answer Call
- Switch (Long Press) / Hang Up Call
- Volume
4.3 DIP Switch Settings
The adapter features DIP switches for configuration. It is crucial to check and set these switches correctly according to your vehicle's specifications before installation. Always reconnect the white connector after making any DIP switch changes.
Figure 5: DIP Switch Settings (Refer to the diagram for specific switch positions)
4.4 General Installation Steps
- Disconnect Power: Before starting, disconnect the vehicle's battery to prevent electrical damage.
- Access Head Unit: Carefully remove the necessary trim panels and the original head unit/display to access the wiring.
- Connect Main Harness: Connect the provided main wiring harness to the original car's harness and the Bonroad adapter.
- Connect LVDS Cables: Connect the LVDS IN and LVDS OUT cables between the original display, the adapter, and the head unit as per the wiring diagram.
- Connect Peripherals: Connect the USB cable, microphone, GPS antenna, and any optional camera inputs (rear, front, 360-view) to the adapter.
- Install AUX Audio Box: Connect the AUX audio interface box (Sound Card) as instructed. This is critical for audio output in NTG 6.0 systems.
- Secure Adapter: Find a suitable, secure location behind the dashboard to mount the Bonroad adapter.
- Reassemble: Carefully reassemble all removed trim panels and the head unit/display.
- Reconnect Power: Reconnect the vehicle's battery.
- Test Functionality: Turn on the ignition and test all functions of the adapter and original car system.
5. Operating Instructions
5.1 System Switching
The adapter allows you to freely switch between the original Mercedes Benz system and the CarPlay/Android Auto system. Typically, this is done by a long press on the 'Home' button or a designated control on your steering wheel, as indicated in the wiring diagram (Figure 4).
Figure 6: Dual System Interchange
5.2 Wireless CarPlay & Android Auto Connection
For the first use, pair your smartphone with the adapter via Bluetooth. Once paired, the system will automatically connect to your phone wirelessly for CarPlay or Android Auto functionality on subsequent uses.
Figure 7: Wireless CarPlay & Android Auto Auto-Connect
5.3 Hands-Free Calling
The system supports hands-free phone calls, allowing you to answer or hang up directly from the car's screen or steering wheel controls, promoting safer driving.
Figure 8: Hands-Free Calling Interface
5.4 Navigation Maps
Utilize popular navigation applications like Google Maps, Waze, and Apple Maps directly on your car's display for seamless guidance.
Figure 9: Navigation Maps Support
5.5 Online Music Playback
Connect your phone via Bluetooth to stream and play online music through your car's sound system, enjoying high-quality audio.
Figure 10: Online Music Playback
5.6 Camera Support
The adapter supports both the factory-installed reverse camera and parking radar, as well as aftermarket cameras and 360-degree view systems, providing comprehensive visual assistance for parking and maneuvering.
Figure 11: Original Car Rear Camera and Aftermarket Camera Support
5.7 Retaining Original Car Functions
The Bonroad adapter is designed to integrate seamlessly without compromising the original functionalities of your Mercedes Benz. This includes:
- Keeping the original vehicle system intact.
- Maintaining full functionality of steering wheel controls.
- Preserving the original car CD/DVD player (if applicable).
- Retaining the original stereo sound quality.
- Supporting the original reverse camera.
- Keeping the original car buttons fully functional.
Figure 12: Retained Original Car Functions
6. Maintenance
To ensure the longevity and optimal performance of your Bonroad Smart Adapter, follow these general maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the adapter unit. Avoid using harsh chemicals or abrasive cleaners.
- Environment: Ensure the adapter is installed in a location that is not exposed to extreme temperatures, direct sunlight, or excessive moisture.
- Connections: Periodically check that all cables and connections are secure and free from damage.
- Software Updates: Check the manufacturer's website for any available firmware updates to ensure the best performance and compatibility.
7. Troubleshooting
If you encounter issues with your Bonroad Smart Adapter, please refer to the following troubleshooting tips:
- No Audio Output: Ensure the AUX audio interface box (Sound Card) is correctly installed and connected. This component is critical for audio functionality, especially in NTG 6.0 systems where original audio output might be affected.
- Connectivity Issues (CarPlay/Android Auto):
- Ensure your phone's Bluetooth and Wi-Fi are enabled.
- Try re-pairing your phone with the adapter via Bluetooth.
- Check all wiring connections to the adapter and head unit.
- Restart your phone and the car's infotainment system.
- System Not Starting/No Display:
- Verify all power connections to the adapter are secure.
- Check the LVDS cable connections.
- Ensure the DIP switch settings are correct for your vehicle model.
- Screen Mirroring Not Working: Ensure your phone's screen mirroring feature (AirPlay for iOS, Autolink/Miracast for Android) is activated and correctly configured.
- Netflix/YouTube Playback: Direct installation of these apps on the adapter is not supported. However, you can use the screen mirroring function (AirPlay/Autolink) to display content from your phone's Netflix or YouTube app onto the car's screen.
If problems persist after attempting these steps, please contact customer support for further assistance.
8. Specifications
| Brand Name | BONROAD |
| Origin | Mainland China |
| Main Function | Wireless CarPlay, Android Auto, Mirror Link, CarLife, USB Flash drive |
| Phone OS Compatibility | iOS & Android |
| Applicable Models | For Mercedes Benz A B C E GLA GLK GLS CLA ML Class NTG 6.0 MBUX System (2019-2022) |
| Package Length | 26 cm |
| Package Width | 16 cm |
| Package Height | 10 cm |
| Package Weight | 1.0 kg |
9. User Tips
- Installation Assistance: If you encounter any difficulties during installation, the seller's customer support is highly recommended for their excellent and tireless assistance in resolving installation problems.
- Compatibility Check: Always double-check that your Mercedes Benz model and year (2019-2022) are compatible and that your vehicle has the NTG 6.0 MBUX System with a 10.25" or 12.3" touch screen before purchasing or installing.
- Audio Output: The included AUX audio interface box is a critical component for ensuring proper audio output, especially for NTG 6.0 systems. Ensure it is correctly installed.
- App Usage: While direct app installation like Netflix or YouTube is not supported on the adapter itself, you can use the screen mirroring function (AirPlay for iOS, Autolink for Android) to display these apps from your smartphone onto the car's screen.
10. Warranty and Support
The Bonroad Wireless CarPlay & Android Auto Smart Adapter comes with a 2-year warranty from the date of purchase, covering manufacturing defects and malfunctions under normal use. For technical support, troubleshooting assistance, or warranty claims, please contact the seller or manufacturer directly through their official channels.
