1. Product Overview
The Hella 003030151 Model 100 Red Rear Fog Lamp is designed to significantly increase your vehicle's visibility to other drivers, especially in adverse weather conditions such as fog, heavy rain, or snow. This lamp features a durable, waterproof design and a red polycarbonate lens, ensuring reliable performance and longevity. Its compact size allows for versatile installation on either the left or right side of the vehicle.

Figure 1: Front view of the Hella 003030151 Model 100 Red Rear Fog Lamp.
Key Features:
- Enhanced Visibility: Increases vehicle visibility for safer driving in fog and poor weather conditions.
- Waterproof Design: Constructed to perform reliably even in wet environments.
- Quality Materials: Features a red lens and robust housing for dependable use and durability.
- Durable Construction: Engineered to withstand harsh weather, ensuring long-lasting performance.
- Compact and Versatile: Designed for easy installation on either the left or right side of the vehicle.
2. Safety Information
Please read and understand all safety instructions before installing or operating the Hella 003030151 Rear Fog Lamp. Failure to follow these instructions may result in property damage, injury, or improper operation.
- Professional Installation Recommended: For optimal safety and performance, installation by a qualified automotive technician is recommended.
- Electrical Safety: Disconnect the vehicle's battery before performing any electrical work to prevent short circuits or electrical shock.
- Correct Wiring: Ensure all wiring connections are secure and properly insulated to prevent hazards. Refer to your vehicle's wiring diagram for correct connections.
- Mounting Security: Securely mount the lamp to the vehicle to prevent it from detaching during operation or vibration.
- Local Regulations: Verify that the installation and use of this fog lamp comply with all local and national vehicle lighting regulations.
- Heat: The lamp may become hot during operation. Avoid touching it immediately after use.
3. Package Contents
Verify that all components are present and undamaged upon opening the package.
- 1x Hella 003030151 Model 100 Red Rear Fog Lamp Assembly
- Mounting Hardware (bolts, nuts, washers, bracket)
- Note: A bulb may not be included and might need to be purchased separately. Please check the product packaging for specific bulb requirements.
4. Specifications
| Brand | Hella |
| Model Number | 003030151 |
| Specific Uses | Rear Fog Lights |
| Vehicle Service Type | Car, Truck |
| Special Feature | Waterproof |
| Lens Color | Red |
| Lens Material | Polycarbonate |
| Item Dimensions (L x W x H) | 4 x 5 x 3 inches |
| Item Weight | 6 ounces |
| Assembly Required | No (for the lamp itself, but installation on vehicle is required) |
5. Setup and Installation
This section provides general guidelines for installing the Hella 003030151 Rear Fog Lamp. Specific vehicle requirements may vary. Professional installation is highly recommended.
5.1 Pre-Installation Checks
- Ensure the vehicle's battery is disconnected.
- Confirm the fog lamp is compatible with your vehicle's electrical system and mounting location.
- Acquire the correct bulb if not included with the lamp assembly.
5.2 Mounting the Lamp
- Select Mounting Location: Choose a suitable location at the rear of your vehicle, typically below the bumper or integrated into a rear valance. Ensure it complies with local regulations regarding height and position. The lamp can be mounted on either the left or right side.
- Prepare Mounting Surface: If drilling is required, mark the drill points accurately. Ensure no vital vehicle components (e.g., fuel lines, wiring harnesses) are behind the drilling area.
- Secure Bracket: Attach the provided mounting bracket to the vehicle using appropriate fasteners. Ensure it is firmly secured and stable.
- Attach Lamp to Bracket: Connect the fog lamp assembly to the mounting bracket using the supplied bolts, nuts, and washers. Adjust the angle if necessary for optimal visibility.

Figure 2: Side view showing the mounting bracket of the Hella Rear Fog Lamp.
5.3 Electrical Connection
- Wiring: Connect the lamp's wiring to your vehicle's electrical system. Typically, a rear fog lamp requires a connection to a dedicated fog lamp switch, a power source (e.g., ignition-switched 12V), and a ground. Consult your vehicle's wiring diagram or a professional for specific connection points.
- Insulation: Ensure all electrical connections are properly insulated using heat shrink tubing or electrical tape to prevent moisture ingress and short circuits.
- Reconnect Battery: Once all connections are secure and insulated, reconnect the vehicle's battery.
5.4 Post-Installation Check
- Test the fog lamp to ensure it illuminates correctly when activated.
- Verify that the lamp is securely mounted and does not vibrate.
- Check for any loose wiring or exposed connections.
6. Operating Instructions
The Hella 003030151 Rear Fog Lamp is designed to be used in conjunction with your vehicle's existing lighting system to enhance safety during periods of reduced visibility.
- Activation: Activate the rear fog lamp using the dedicated switch installed in your vehicle's cabin. This switch is typically separate from your regular headlight switch.
- When to Use: Only use the rear fog lamp when visibility is severely reduced (e.g., less than 100 meters or 328 feet) due to fog, heavy rain, or snow.
- When to Deactivate: Turn off the rear fog lamp as soon as visibility improves. Leaving it on in clear conditions can dazzle drivers behind you and is illegal in many regions.
- Indicator Light: Most vehicles have an indicator light on the dashboard that illuminates when the rear fog lamp is active. Confirm this indicator functions correctly.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Hella Rear Fog Lamp.
- Cleaning: Periodically clean the lamp's lens with a soft cloth and mild soap and water. Avoid abrasive cleaners or harsh chemicals that could damage the polycarbonate lens.
- Inspection: Regularly inspect the lamp for any signs of damage, cracks, or loose connections. Check the mounting hardware for tightness.
- Bulb Replacement: If the lamp ceases to function, the bulb may need replacement. Access the bulb by carefully removing the lens cover (if designed for user access) or by following specific instructions for your vehicle's fog lamp assembly. Ensure to use a bulb of the correct type and wattage as specified by Hella or your vehicle manufacturer.
- Wiring Check: Ensure all wiring remains intact and free from corrosion or damage.
8. Troubleshooting
If you encounter issues with your Hella 003030151 Rear Fog Lamp, refer to the following troubleshooting guide:
| Problem | Possible Cause | Solution |
|---|---|---|
| Lamp does not illuminate. |
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| Lamp flickers or is dim. |
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| Moisture inside the lens. |
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If the problem persists after attempting these solutions, contact Hella customer support or a qualified automotive technician.
9. Warranty and Support
Hella products are manufactured to high-quality standards. While specific warranty details are not provided in this manual, Hella typically offers a limited warranty against defects in materials and workmanship. Please retain your proof of purchase for warranty claims.
Customer Support:
For technical assistance, warranty inquiries, or to purchase replacement parts, please visit the official Hella website or contact their customer service department. Contact information can usually be found on the product packaging or the Hella official website.
- Hella Official Website: www.hella.com
- Refer to your regional Hella distributor for local support.