WeatherTech 478361
WeatherTech Custom Fit FloorLiners User Manual
Model: 478361
1. Introduction
Thank you for choosing WeatherTech Custom Fit FloorLiners. These floor liners are meticulously engineered to provide superior interior protection for your vehicle. Designed using advanced digital laser measurements, they offer a precise, custom fit that covers the front, back, and even up the sides of your vehicle's footwell. This manual provides essential information for the proper installation, use, and maintenance of your new FloorLiners.
2. Product Overview
WeatherTech FloorLiners are crafted from a patented High-Density Tri-Extruded (HDTE) material, ensuring a rigid core for strength while providing surface friction to the carpet and a tactile feel. The advanced surfacing features channels designed to carry fluids and debris to a lower reservoir, minimizing fluid movement while driving. This innovative design helps protect your vehicle's carpet from dirt, spills, and wear.

Image: A pair of WeatherTech Custom Fit FloorLiners in Cocoa color, showcasing their precise contours and deep channels.

Image: A diagram highlighting key features of the FloorLiner, including laser measurement for a perfect fit, surface channels to redirect liquids and debris, and a rigid core for strength and stability.

Image: A detailed view of the FloorLiner's surface channels, showing how they contain liquids, alongside the integrated retention system designed to keep the mat securely in place.
3. Setup and Installation
Installing your WeatherTech FloorLiners is a straightforward process due to their custom-fit design. Ensure your vehicle's original floor mats are removed before installing the FloorLiners to prevent interference with pedal operation and ensure proper fitment.
- Prepare the Vehicle: Remove any existing floor mats from the 1st row (driver and passenger sides) of your Mercedes AMG GT, AMG GT Black Series, AMG GT R, or AMG GT S.
- Position the FloorLiner: Carefully place the driver's side FloorLiner into the driver's footwell, aligning it with the contours of the floor.
- Secure with Retention Posts: If your vehicle is equipped with factory retention posts, press the FloorLiner firmly onto these posts to secure it in place. The FloorLiner is designed to integrate seamlessly with these systems.
- Repeat for Passenger Side: Follow the same steps for the passenger side FloorLiner.
- Verify Fitment: Ensure both FloorLiners are seated properly and do not obstruct the accelerator, brake, or clutch pedals. The custom fit should provide full coverage without gaps.

Image: A person's hands carefully positioning a WeatherTech FloorLiner into the driver's side footwell of a vehicle, demonstrating the ease of installation.
4. Operating and Usage
Once installed, your WeatherTech FloorLiners are designed for continuous protection. They are engineered to contain spills, dirt, and debris within their channels and reservoir, preventing them from reaching your vehicle's original carpeting. This design helps maintain the cleanliness and resale value of your vehicle's interior.

Image: A pair of feet wearing snowy boots resting on a WeatherTech FloorLiner, demonstrating its ability to protect the vehicle's interior from harsh elements and preserve its condition.
5. Maintenance and Cleaning
WeatherTech FloorLiners are designed for easy maintenance. Regular cleaning will ensure their longevity and continued effectiveness.
- Routine Cleaning: For light dirt and dust, simply wipe the FloorLiners with a damp cloth.
- Deep Cleaning: For heavier dirt, mud, or spills, remove the FloorLiners from your vehicle. Hose them off with water. For stubborn grime, use a mild soap or a dedicated WeatherTech cleaner. Avoid harsh chemicals or abrasive brushes, as these can damage the material.
- Drying: Allow the FloorLiners to air dry completely before reinstalling them in your vehicle. Do not use heat sources for drying, as this may cause warping.

Image: A person hosing off a WeatherTech FloorLiner outdoors, illustrating the simple and effective method for cleaning the product.
6. Troubleshooting
- Fitment Issues: If your FloorLiner does not seem to fit correctly, first ensure that all original floor mats have been removed from the vehicle. Double-check that the FloorLiner is properly aligned with any factory retention posts. Slight adjustments may be needed to ensure a perfect, snug fit.
- Persistent Stains: For tough stains, a soft-bristle brush and a stronger, yet still mild, automotive interior cleaner can be used. Always test any new cleaning product on an inconspicuous area first.
- Slipping: The FloorLiners are designed with a tactile surface to minimize movement. Ensure they are properly seated and engaged with any factory retention posts. If slipping persists, verify that the vehicle's carpet beneath the FloorLiner is clean and dry.
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | WeatherTech |
| Model Number | 478361 |
| Color | Cocoa |
| Coverage Area | 1st Row (Driver & Passenger) |
| Material | High-Density Tri-Extruded (HDTE) |
| Manufacturing | Made in USA |
| Compatible Vehicles | 2017-2020 Mercedes AMG GT, 2021-2021 Mercedes AMG GT Black Series, 2018-2020 Mercedes AMG GT R, 2016-2020 Mercedes AMG GT S Models |
8. Warranty and Support
WeatherTech products are known for their quality and durability. For specific warranty information regarding your FloorLiners, please refer to the official WeatherTech website or contact their customer support directly. WeatherTech stands behind its products and offers support for any manufacturing defects or issues.
For further assistance or to view other WeatherTech products, please visit the official WeatherTech Store on Amazon.
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