1. Product Overview
The Snailfly Roof Rack Cross Bars are designed to provide additional cargo carrying capacity for your vehicle. These cross bars are engineered for a secure fit and feature an aerodynamic design to minimize wind noise, ensuring a comfortable driving experience. With a robust 165 lbs (75 kg) load capacity, they are ideal for transporting various outdoor gear and luggage.

Image 1.1: Snailfly Roof Rack Cross Bars installed on an Audi Q3.
2. Vehicle Compatibility
These roof cross bars are specifically designed for the following vehicle model:
- Audi Q3: Model years 2019, 2020, 2021, 2022, 2023, 2024, 2025.
It is crucial that your Audi Q3 is equipped with existing side rails for proper installation. These cross bars are not compatible with Audi Q7 or Audi Q5 models.

Image 2.1: Vehicle compatibility guide for Snailfly Roof Rack Cross Bars.
3. Key Features
- High Load Capacity: Capable of carrying up to 165 lbs (75 kg), suitable for various cargo including surfboards, skis, kayaks, bikes, and cargo boxes.

Image 3.1: Load capacity and compatible cargo types.
- Sunroof Clearance: Designed to allow the vehicle's sunroof to open and close freely, providing optimum height and adequate space for mounting other accessories.
Image 3.2: Illustration of sunroof clearance.
- Quiet Aerodynamic Design: The cross bars feature an aerodynamic shape that significantly minimizes wind noise, even at speeds up to 75 km/h, contributing to a quieter ride. Ensure the groove is oriented to the front for optimal performance.
Image 3.3: Aerodynamic design for reduced noise.
- Enhanced Security: Equipped with built-in hidden locks to prevent theft of the cross bars and ensure the safety of your belongings.
- Protective PVC Coating: The contact points are coated with PVC to prevent scratches and damage to your vehicle's roof rails.
- Adjustable Length: The design allows for flexible adjustment of the cross bar length to ensure a precise fit.
Image 3.4: Security, protection, and adjustability features.
- Anti-Rust Finish: Durable construction with an anti-rust finish ensures longevity and resistance to outdoor elements.
4. What's in the Box
Please verify that all components are present before beginning installation:
- Front crossbar (1)
- Rear crossbar (1)
- Allen wrench (1)
- Screws (quantity as required for installation)
- Keys (2)
Image 4.1: Contents of the Snailfly Roof Rack Cross Bars package.
5. Setup and Installation
Installation of the Snailfly Roof Rack Cross Bars is designed to be straightforward, requiring no drilling or cutting. Please follow these general steps. Refer to the detailed diagram and instructions provided in the physical manual included with your product for precise guidance.
- Identify Front and Rear Bars: The cross bars may have slight differences in length or curvature. Identify the front and rear bars as indicated in the product's specific instructions.
- Position on Side Rails: Carefully place the cross bars onto your vehicle's existing side rails. Ensure they are oriented correctly (e.g., aerodynamic groove facing forward).
- Adjust Length: Use the adjustable length mechanism to fit the cross bars snugly between the side rails. Ensure even extension on both sides.
- Secure Fasteners: Using the provided Allen wrench, tighten the screws to secure the cross bars firmly to the side rails. Ensure all fasteners are tightened evenly and securely to prevent movement during travel.
- Engage Locks: Once installed, use the provided keys to engage the hidden locks on each cross bar. This secures the bars to your vehicle and deters theft.
Important: After installation, gently shake the cross bars to confirm they are securely attached and do not wobble. Re-check all fasteners after the first few miles of driving and periodically thereafter.
Image 5.1: Cross bar dimensions relevant for installation.
6. Operating and Usage
Once installed, your Snailfly Roof Rack Cross Bars are ready for use. Always adhere to the maximum load capacity of 165 lbs (75 kg) to ensure safety and prevent damage to your vehicle or the cross bars.
- Loading Cargo: Distribute weight evenly across the cross bars. Secure all cargo using appropriate tie-downs, straps, or specialized carriers (e.g., ski racks, bike racks, cargo boxes). Ensure cargo does not obstruct your view or interfere with vehicle operation.
- Driving with Cargo: Be mindful of increased vehicle height and weight when driving, especially under low clearances (garages, carports) or when cornering and braking. Adjust your driving speed and style accordingly.
- Aerodynamic Considerations: For optimal noise reduction, ensure the cross bars are installed with the aerodynamic groove facing forward.
Image 6.1: Examples of cargo carried on roof rack cross bars.
7. Maintenance
Regular maintenance will ensure the longevity and safe operation of your Snailfly Roof Rack Cross Bars:
- Cleaning: Clean the cross bars periodically with mild soap and water to remove dirt, road grime, and debris. Rinse thoroughly and dry. Avoid abrasive cleaners or solvents that could damage the finish or PVC coating.
- Fastener Check: Regularly inspect all screws and mounting points for tightness. Vibrations from driving can cause fasteners to loosen over time. Tighten as necessary using the provided Allen wrench.
- Inspect for Damage: Periodically check the cross bars for any signs of wear, corrosion, cracks, or damage, especially after long trips or exposure to harsh weather conditions. If significant damage is found, discontinue use and contact customer support.
- Lubrication: If the adjustable length mechanism becomes stiff, a small amount of silicone-based lubricant can be applied to the sliding parts.
8. Troubleshooting
Here are some common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Excessive Wind Noise | Incorrect orientation of cross bars; loose installation. | Ensure the aerodynamic groove faces forward. Verify all fasteners are securely tightened. |
| Cross Bars Feel Loose | Fasteners are not tightened sufficiently; incorrect installation. | Re-tighten all screws using the Allen wrench. Review installation steps to ensure correct fitment. |
| Difficulty Adjusting Length | Dirt or debris in the sliding mechanism; lack of lubrication. | Clean the sliding parts and apply a small amount of silicone-based lubricant. |
| Keys Do Not Work | Lock mechanism is jammed or damaged. | Ensure the key is fully inserted and turned correctly. Do not force the key. Contact customer support if the issue persists. |
9. Specifications
| Attribute | Detail |
|---|---|
| Brand | Snailfly |
| Model Number | SN-C8319Q3CB |
| Color | Black |
| Load Capacity | 165 LBS (75 kg) |
| Mounting Type | U-Bolt (attaches to existing side rails) |
| Item Dimensions (L x W x H) | 41.34 x 6.3 x 6.3 inches (packaged) |
| Item Weight | 13.12 pounds |
| Foldable | No |
| Manufacturer | Snailfly |
10. Warranty and Support
For information regarding product warranty, returns, or technical support, please refer to the warranty card included with your purchase or visit the official Snailfly store on Amazon:
Visit the Snailfly Store on Amazon
Our customer service team is available to assist you with any questions or concerns you may have regarding your Snailfly Roof Rack Cross Bars.
