1. Introduction
This manual provides comprehensive instructions for the installation, setup, and operation of your new Wowuseful 12.3-inch Digital Dashboard Cluster. Designed for VW POLO and T-Cross models from 2019 to 2025, this virtual instrument panel enhances your driving experience with a modern, customizable display.
The system runs on a stable Linux operating system, offering fast boot times and real-time data display without delays. It supports various vehicle information, multiple display modes, and seamless integration with your car's existing systems.
Video: Overview of the Digital Dashboard Cluster's features and UI themes.
2. Specifications
| Feature | Specification |
|---|---|
| Brand Name | WOWUSEFUL |
| Special Features | 10.25 inch LED digital (Note: Product title states 12.3'') |
| Placement on Vehicle | Dashboard |
| Material | ABS |
| Item Length | 40 cm |
| Item Width | 30 cm |
| Item Height | 20 cm |
| Item Weight | 3.5 kg |
| Operating System | Linux |
| CPU | T5 1.5Ghz |
| Screen Size | 12.3 inch HD IPS |
| Resolution | 1920x720 |
| Factory Voltage | 9V-16V |
| Operating Current | 0.8A-1.5A |
| Standby Current | Less than 3MA |
| Supported Languages | English, Russian, German, French, Spanish, Italian, Korean, Japanese, Arabic, Turkish, etc. |
3. Setup & Installation
For a detailed installation video, please refer to the Google Drive link: Installation Video. Search for your specific car model on the website for detailed modification instructions.
Video: Pre-installation steps and UI features demonstration.
3.1. Pre-Installation Steps
- Set Speed Limit and Turn Off Winter Tires: Before installing the digital cluster, set the speed limit alarm to 250 km/h and turn off the winter tire setting in your original car system.
- Keep Original Buzzer: If your original car motherboard has a buzzer, please keep it. Otherwise, alarm sounds or other functions may not work correctly.
- Keep Small Motherboard: If your original car dashboard motherboard includes a small board, as shown in the image, please retain it and install it with the new digital cluster.

Image: Comparison of the original analog cluster (Before) and the new digital LCD meter (After).
3.2. Wiring and Connections (HDMI)
For HDMI connectivity, follow these steps:
- Connect the HDMI port on the digital cluster to an HDMI cable.
- Connect the HDMI cable to an HDMI exchange box.
- Connect the HDMI exchange box to the USB port of your Android player.
- After successful connection, open the digital cluster, navigate to the navigation interface, and press the down button to activate the function.

Image: Optional Sync display cable for USB port exchange box.
3.3. Initial Settings
Access the settings menu on your digital cluster to configure various parameters:
- Fuel Tank Set: If the fuel tank level is inaccurate, fill the tank completely first. Note the full tank value and input it into the system for accurate readings.
- Car Type Set: Go to 'Settings' > 'Car Type' and select your specific car model. Then, turn off the engine, power, lock the car, and wait for 5 minutes before restarting for the settings to take effect.
- Speed Calibration: In 'Dashboard Settings' > 'Calibration Settings' (second item), enter the difference between the displayed speed and the actual speed to calibrate the average speed value.
- Consumption Set: In 'Dashboard Settings' > 'Calibration Settings' (third item), change to 'Manual' and enter the difference between the actual and displayed consumption to calibrate the average consumption value.
- Unit Set (PQ Platform): Configure units for Distance, Vehicle Speed, Volume, Consumption, Temperature, Pressure, and Time.
- Preference Set: This section includes various minor settings such as oil pressure detection, physical light, mirror back settings, manual transmission, race mode, boot sound, tire pressure, MIL check, phone mirror, rear door follow, brake pad inspection, voltage display frequency, reverse left/right, width indicator light, move up/down, zoom ratio, and time source.
- Dashboard Type Set: Configure the sport speed and RPM (6000 RPM diesel or 8000 RPM gas).
- Language Set: Choose from approximately 20 supported languages.
- LHD/RHD Configuration: Set the display to Left-Hand Drive (LHD) or Right-Hand Drive (RHD) based on your vehicle's configuration.
- Trip Set: Reset trip data by navigating to travel data and confirming the reset.
- Theme Set: Switch between Golf 8 and Golf 7 themes by going to 'Settings' > 'Theme' and selecting G8 or G7.
4. Operating Instructions
4.1. User Interface and Display Modes
The digital cluster features a new UI design with a 12.3-inch anti-glare screen (1920*720 resolution). You can choose from 3 or 4 different display modes (Simple, Comfort, Technology, Track) and 4 theme colors to personalize your dashboard.

Image: Digital Dashboard Cluster UI display with various modes (Racing, Minimalist, Gear & Speed, Economic, Navigation).
4.2. Real-time Vehicle Information
The cluster provides real-time detection and display of various vehicle information, including:
- Door Information
- Alerts
- Tire Pressure Information
- Bluetooth Phone status
- Gear & Speed
- Consumption and Range
- Economy data
- Navigation (when connected)
- Mileage, Travel Time, Oil Temperature, Digital Speed

Image: Various real-time vehicle information displays on the digital cluster.
4.3. CarPlay & Android Auto
The system supports Wireless CarPlay and Android Auto. To connect:
- Go to the 'CarPlay' option in the settings.
- Press the down button to access the menu.
- You can adjust the display region or switch between devices (CarPlay, AirPlay, Android Auto, HiCar).
- If you have an Android phone, select 'Android Auto' to connect directly via Bluetooth.

Image: Synchronized display of rear camera, 360 camera, DVR, and CarPlay/Android Auto on the digital cluster.
4.4. Ambient Lighting
The digital cluster offers 30 colors of ambient lighting. These gauges do not add to the stock ambient light color assortment but synchronize with the existing colors of the ambient lighting for a more immersive experience.

Image: Ambient light settings menu on the digital cluster.
5. Maintenance
To ensure the longevity and optimal performance of your digital dashboard cluster, follow these general maintenance guidelines:
- Cleaning: Use a soft, lint-free cloth to gently wipe the screen. Avoid abrasive cleaners or solvents that could damage the display.
- Software Updates: Periodically check for firmware and software updates provided by Wowuseful to ensure you have the latest features and bug fixes.
- Environmental Conditions: Avoid exposing the unit to extreme temperatures or direct sunlight for prolonged periods, as this can affect performance and lifespan.
- Connection Checks: Occasionally check all wiring connections to ensure they are secure and free from damage.
6. Troubleshooting
If you encounter any issues with your digital dashboard cluster, refer to the following common troubleshooting tips:
- No Alarm Sound: Ensure the original car motherboard buzzer is retained and properly connected. If not, the alarm function may not work.
- Inaccurate Fuel Level/Consumption: Perform the 'Fuel Tank Set' and 'Consumption Set' calibration steps as described in the Initial Settings section (3.3). Ensure the tank is full before calibration.
- Incorrect Speed Display: Follow the 'Speed Calibration' steps in the Initial Settings section (3.3) to adjust the displayed speed to match the actual speed.
- CarPlay/Android Auto Connection Issues: Verify all HDMI and USB connections are secure. For Android phones, ensure 'Android Auto' is selected in the CarPlay settings and connected via Bluetooth.
- System Lag/Delay: The Linux operating system is designed for stability and smoothness. If you experience lag, try restarting the car (after turning off engine, power, locking, and waiting 5 minutes as per 'Car Type Set' instructions) to refresh the system.
- Display Not Working After Installation: Double-check all wiring, especially the HDMI connections. Ensure the pre-installation steps regarding the buzzer and small motherboard were followed.
If the problem persists, please contact customer support for further assistance.
7. User Tips
- Personalization: Experiment with the different UI modes (Simple, Comfort, Technology, Track) and theme colors to find the display that best suits your driving style and preference.
- Seamless Integration: The system is designed for non-destructive installation, meaning no cutting or soldering of original wires. This helps maintain your car's warranty and original functionality.
- Enhanced Safety: The direct vision display of critical vehicle information on the digital cluster can help reduce driver distraction compared to looking at a separate center screen.
8. Warranty & Support
Wowuseful is committed to providing high-quality products and customer satisfaction. All products undergo strict quality tests before shipment.
For any questions or technical assistance, please contact our customer service. We have an engineer team available to help with installation and support.
A user manual in PDF format is also available for download: Download User Manual (PDF).