MAIMEIMI B3 OBD2 HUD Head Up Display User Manual

1. Introduction

The MAIMEIMI B3 OBD2 HUD (Head Up Display) is a multi-function device designed to enhance your driving experience by projecting essential vehicle information directly into your line of sight. This device connects to your car's On-Board Diagnostics II (OBD2) port to display real-time data such as speed, RPM, water temperature, fuel consumption, voltage, driving time, and driving distance. It also features multiple alarm functions for safety and convenience.

Important Compatibility Note:

• This HUD is NOT compatible with cars manufactured before 2009.
• It is NOT compatible with diesel vehicles.
• It is NOT compatible with petrol-electric hybrid vehicles.
• It is NOT compatible with pickup trucks or RVs.
• It is NOT compatible with cars modified with car computers.
• Specific incompatible models include:
• American models: Dodge, JEEP, Sail, Chrysler (models produced before 2004 and 2004).
• French and Italian models: Fiat, Maserati, Lamborghini, DS, Peugeot, Citroen, Renault, Simka, Amirca.
• Japanese models: Suzuki, Mazda 6, Infiniti (QX50, Q50, Q501), 2013 Toyota Avanza, Lexus (IS250, EX250, ES300H), Honda (Jazz, CRV), and cars produced before 2008.
• South Korean models: Some Kia and Hyundai models (e.g., 2013 Hyundai Sonata, 2017 Kia Soul PS).
• All brand models under Swiss Volvo, Chrysler Group, and Fiat Group.
• Chevrolet Spark GT model.

2. Package Contents

Please check the package for the following items:

• MAIMEIMI B3 HUD Unit
• OBD Line (Connection Cable)
• Non-slip Mat
• Instruction Manual

Image: MAIMEIMI B3 HUD package contents.

3. Product Features

• Multi-function Display: Shows speed, RPM, water temperature, fuel consumption, voltage, clock, driving time, and driving distance.
• Multiple Alarm Functions: Includes overspeed alarm, RPM alarm, water temperature alarm, voltage alarm, and tired driving reminder.
• High-definition LED Display: Clear and bright display for day and night use.
• Automatic Light Sensitivity Adjustment: Configures a photosensitive element to automatically adjust display brightness based on ambient light.
• Automatic Power On/Off: The unit automatically turns on and off with the car's ignition.
• Multiple Display Interfaces: Switch between various display combinations to suit your preference.
• Compact Design: Small body suitable for placement without obstructing driving view.
• Advanced Hardware: Features a new low-power chip for reduced standby power consumption.

Image: B3 HUD display functions and indicators.

Image: Multiple alarm functions.

Image: Automatic light sensitivity adjustment.

Image: Automatic power on and off.

4. Setup and Installation

The MAIMEIMI B3 HUD features a lossless plug-and-play installation process.

1. Locate OBD Port: Find your vehicle's OBD receptacle connector, usually located under the dashboard on the driver's side.
2. Connect OBD Cable: Plug one end of the provided OBD line into the vehicle's OBD port.
3. Route Cable: Carefully stuff the OBD wire into the A-pillar seal or other suitable trim to conceal it and prevent obstruction.
4. Connect HUD: Connect the other end of the OBD line to the OBD interface port on the HUD unit.
5. Position HUD: Place the HUD unit on your dashboard in a position that does not obstruct your view of the road. The non-slip mat can be used to secure it.

Image: Lossless installation steps.

Video: Product Unboxing and Overview

This video provides a visual overview of the MAIMEIMI B3 HUD unit and its components.

5. Operating Instructions

Once installed, the B3 HUD will automatically power on when your vehicle starts and power off when the engine is turned off. The display brightness adjusts automatically based on ambient light conditions.

5.1 Display Functions

The HUD can display various parameters. Refer to the display function diagram for a visual representation of each element:

• Speed: Displays current vehicle speed (MPH or KM/H).
• RPM: Engine Revolutions Per Minute.
• Water Temperature: Real-time monitoring of engine coolant temperature (°C or °F).
• Fuel Consumption: Displays current fuel usage.
• Voltage: Real-time battery voltage monitoring.
• Clock: Current time display.
• Driving Time: Duration of the current trip.
• Driving Distance (TRIP): Distance traveled during the current trip.

Image: Detailed explanation of key parameters.

Image: Detailed explanation of time and distance parameters.

5.2 Switching Display Interfaces

The B3 HUD offers multiple display modes. Use the 'Dial button' (located on the top of the unit, as shown in the product dimensions image) to cycle through different display combinations. The numerical lubrication algorithm ensures a consistent and smooth display transition.

Image: Multiple display interfaces available.

5.3 Alarm Functions

The HUD provides audible and visual alerts for various conditions:

• Overspeed Alarm: Alerts you when your speed exceeds a preset limit.
• RPM Alarm: Notifies you if engine RPM goes too high.
• Water Temperature Alarm: Warns of excessive engine water temperature to prevent damage.
• Voltage Alarm: Alerts you to low or high battery voltage.
• Tired Driving Reminder: Prompts you to take a break after extended driving periods.

Refer to the full instruction manual for details on how to set or adjust these alarm thresholds using the dial button.

Video: In-Car Demonstration

This video demonstrates the MAIMEIMI B3 HUD in action during driving, showcasing its display clarity and real-time data.

6. Maintenance

To ensure the longevity and optimal performance of your MAIMEIMI B3 HUD:

• Cleaning: Use a soft, dry cloth to clean the display and exterior. Avoid abrasive cleaners or solvents that could damage the surface.
• Placement: Ensure the unit is securely placed on the non-slip mat to prevent movement during driving.
• Cable Management: Periodically check the OBD cable for any signs of wear or damage. Ensure it is not pinched or exposed to excessive heat.
• Storage: If not in use for an extended period, disconnect the HUD from the OBD port and store it in a cool, dry place.

7. Troubleshooting

• No Display/Power:
  • Check if the OBD cable is securely connected to both the HUD and the vehicle's OBD port.
  • Ensure your vehicle is compatible with OBD2 HUDs (refer to the compatibility notes in Section 1).
  • Verify the car's ignition is on.
• Inaccurate Speed/RPM:
  • The HUD typically calibrates automatically. If discrepancies persist, consult the full instruction manual for manual calibration steps (if available).
  • Ensure the correct speed unit (KM/H or MPH) is selected.
• Display Glare/Reflection:
  • Adjust the position of the HUD on the dashboard.
  • The automatic light sensitivity should help, but extreme sunlight might still cause some glare.
• Alarms Not Functioning:
  • Check the alarm settings using the dial button to ensure they are enabled and thresholds are set correctly.
• Unit Freezes/Responds Slowly:
  • Disconnect the HUD from the OBD port, wait a few seconds, and then reconnect it to perform a reset.

8. Specifications

Image: Product dimensions and key components.

9. User Tips

• Optimal Placement: Experiment with different dashboard positions to find one that offers the clearest view without obstructing your line of sight to the road. The small body design allows for flexible placement.
• Minimize Glare: While the unit has automatic light sensitivity, in very bright conditions, a slight adjustment of the unit's angle or using a dashboard cover can further reduce reflections.
• Regular Checks: Periodically check the OBD connection to ensure it remains secure, especially after driving on rough roads.

10. Warranty and Support

For any questions, technical support, or warranty claims, please contact the seller directly through the platform where you purchased the product. Ensure you have your purchase details readily available.