1. Introduction
This MEKEDE retrofit kit enhances your Mercedes Benz S-Class W221 (2003-2014) with modern connectivity features, including wireless Apple CarPlay and Android Auto. It integrates seamlessly with your vehicle's original NTG 3.0 or NTG 3.5 system, allowing you to use navigation, music, communication, and other smartphone applications directly on your car's display while retaining full control via original buttons and controls.
2. Compatibility
This retrofit kit is specifically designed for:
- Vehicle Model: Mercedes Benz S-Class W221
- Model Years: 2003 - 2014
- NTG System Versions: NTG 3.0 and NTG 3.5
- Screen Support: Supports original 8-inch screen.
Please ensure your vehicle matches these specifications for proper functionality. The kit supports both NTG 3.0 and NTG 3.5 systems, which utilize different LVDS connection types.
3. Package Contents
Verify that all items listed below are included in your package:
- LIMCET Box (Main CarPlay/Android Auto Module)
- Wifi Antenna
- LVDS Video Line (specific to NTG 3.0 or NTG 3.5)
- Power Cable
- Microphone (MIC)
- Additional LVDS Video Line (if applicable for specific NTG versions)
4. Specifications
| Feature | Detail |
|---|---|
| Brand Name | MEKEDE |
| Operating System | Android |
| Din | One Din |
| Interface | USB |
| Out Power | 4*45W |
| Voltage | 5V |
| Item Weight | 1.2kg |
| Digital Media Format | CD |
| Display Size | 2.5" (Note: This refers to the module's internal display or a control screen, not the car's main display.) |
| TF/Micro SD Slot | 0 |
| OSD Language | Chinese (Simplified), Arabic, Irish, Estonian, Belarusian, Bulgarian, Polish, Danish, German, Russian, Filipino, Georgian, Korean, Czech, Latvian, Lithuanian, Romanian, Malay, Portuguese, Japanese, Swedish, Serbian, Slovak, Slovenian, Thai, Turkish, Hebrew, Greek, Spanish, Hungarian, Italian, English, Vietnamese |
| Certification | CE |
| Origin | Mainland China |
5. Setup and Installation
Installation of this retrofit kit requires technical expertise and familiarity with automotive electronics. Incorrect installation can damage the device or your vehicle. It is strongly recommended to have the installation performed by a qualified professional at a car service store.
5.1 Module Connections Overview
The main module (LIMCET Box) features various ports for power, video input/output, microphone, and data. Ensure all connections are secure and correctly oriented.
5.2 LVDS Connection
The video connection to your car's original screen depends on your NTG system version:
- NTG 3.0: Uses a 10-PIN LVDS connection.
- NTG 3.5: Uses a 4-PIN LVDS connection.
Verify your vehicle's NTG version and use the appropriate LVDS cable and connection point. Incorrect connection can prevent video display.
5.3 DIP Switch Configuration
The module includes DIP switches (labeled 1-6) for specific configurations. These settings are crucial for proper integration with your vehicle's system. Consult with your professional installer to ensure these switches are set correctly according to your car's specific setup.
5.4 Microphone Installation
Install the included microphone in a suitable location within the cabin to ensure clear voice input for Siri and hands-free calling.
6. Operating Instructions
6.1 Activating CarPlay/Android Auto
Once installed, switch to the CarPlay/Android Auto interface on your car's screen. This is typically done by pressing and holding a specific OEM button (e.g., 'NAV' or 'MEDIA') or via a menu option, depending on your vehicle's original system.
6.2 Wireless Apple CarPlay
- Enable Bluetooth on your iPhone.
- On the CarPlay interface, search for and pair with the kit's Bluetooth signal.
- Once paired, the system will prompt you to enable Wi-Fi for CarPlay data transfer. Accept to establish the wireless CarPlay connection.
6.3 Wired Apple CarPlay
For a wired connection (which also charges your phone):
- Turn off Wi-Fi on your iPhone.
- Connect your iPhone to the kit's USB port using a Lightning cable.
- CarPlay should automatically activate.
6.4 Android Auto
The kit supports both wired and wireless Android Auto. For wireless Android Auto, ensure your Android phone supports wireless Android Auto and follow the on-screen pairing instructions. For wired, connect your Android phone to the kit's USB port.
6.5 Mirror Link (iOS & Android)
The Mirror Link function allows you to mirror your smartphone's screen directly onto the car's display. Connect your phone via USB cable for iOS Airplay or follow the Android Mirroring-Link instructions for Android phones.
6.6 Voice Control (Siri)
Activate Siri by saying "Hey Siri..." or by pressing and holding the voice control button on your steering wheel or car's controls for 3 seconds. You can then issue commands for navigation, calls, music, and more.
6.7 Navigation
Access your favorite navigation apps like Google Maps, Waze, Apple Maps, 2GIS, KakaoNavi, Naver Map, Navitime, Sygic Car Navigation, T Map, and Waze directly through CarPlay or Android Auto. Enjoy live traffic information and turn-by-turn directions on your car's display.
6.8 Music and Media
Stream music from apps like Spotify, Apple Music, Amazon Music, Podcasts, Audiobooks, iHeartRadio, Stitcher, CBS Radio, Overcast, Audible, Pandora, LiveXLive, VOX, NPR One, Downcast, Radio Disney, SiriusXM Radio, Tidal, and At Bat2. Audio is played through your factory PCM media system. Lyrics may be displayed for some applications.
You can also play music and videos from a USB flash drive by connecting it to the CarPlay kit's USB port.
6.9 EQ Adjustment
The system features an adjustable equalizer (EQ) to customize your audio experience. Choose from various styles such as Pop, Rock, Soft, Standard, or create your own custom settings for optimal sound quality.
6.10 OEM Controls Integration
The kit fully integrates with your vehicle's original controls, including factory knob control, steering wheel controls (SWC), and iDrive knob control, allowing for a familiar and intuitive user experience.
6.11 Camera and Parking Sensor Support
The system supports your vehicle's original front/rear cameras and parking sensors. Dynamic guidance lines are also supported for aftermarket cameras, enhancing parking safety and convenience. When reverse gear is engaged, the system automatically switches to the rear-view camera display.
7. Maintenance
To ensure the longevity and optimal performance of your MEKEDE retrofit kit, follow these general maintenance guidelines:
- Keep the module and connections free from dust and moisture.
- Ensure all cables are securely connected and not subject to excessive strain or pinching.
- Avoid exposing the unit to extreme temperatures.
- Periodically check for firmware updates from the manufacturer to ensure the best performance and compatibility with the latest smartphone operating systems.
8. Troubleshooting
If you encounter issues with your retrofit kit, please refer to the following common problems and solutions before contacting support:
- No Display / Black Screen:
- Ensure all power and LVDS video cables are securely connected.
- Verify that the DIP switches on the module are correctly configured for your specific NTG system (3.0 or 3.5).
- Confirm that you have switched to the correct input source on your car's original display.
- CarPlay/Android Auto Not Connecting Wirelessly:
- Ensure Bluetooth is enabled on your phone and paired with the kit.
- Confirm Wi-Fi is enabled on your phone for data transfer.
- Try restarting both your phone and the car's infotainment system.
- CarPlay/Android Auto Not Connecting Wired:
- Ensure Wi-Fi is turned OFF on your iPhone for wired CarPlay.
- Try a different USB cable, as faulty cables can prevent connection.
- Ensure your phone's operating system is up to date.
- No Audio:
- Check your car's audio input source (e.g., AUX, Media). The kit typically routes audio through the factory PCM media.
- Adjust volume levels on both your phone and the car's system.
- Voice Control (Siri) Not Responding:
- Ensure the external microphone is properly connected and positioned.
- Check microphone settings within your phone's CarPlay/Android Auto settings.
- Rear View Camera Not Activating:
- Confirm that the camera input is correctly wired to the module.
- Verify that the system is configured to recognize the original or aftermarket camera.
For persistent issues, please contact MEKEDE customer support for assistance. Most issues can be resolved with correct installation and configuration.
9. User Tips
- Professional Installation: Given the complexity of integrating with vehicle electronics, professional installation is highly recommended to avoid damage and ensure optimal performance.
- NTG Version Verification: Double-check your Mercedes S-Class W221's NTG system version (3.0 or 3.5) before installation, as this affects the LVDS cable and connection type.
- Firmware Updates: Periodically check the manufacturer's website or contact support for any available firmware updates to improve compatibility and add new features.
- Cable Quality: When using wired connections, especially for Android Auto or Airplay, use high-quality USB cables to ensure stable data transfer and charging.
10. Warranty and Support
This MEKEDE product comes with a One Year Factory Warranty, covering manufacturing defects. This warranty does not include accessories. For any issues, technical support, or inquiries regarding navigation updates or new firmware, please contact MEKEDE customer service directly.
Please retain your proof of purchase for warranty claims.
