Mercedes-Benz AMG CLA C118 (2019+) Prepreg Dry Carbon Fiber Side Skirt

Designed for Mercedes-Benz AMG CLA C118 second-generation (2019+) owners, this Prepreg Dry Carbon Fiber Side Skirt is a full carbon replacement for the stock plastic side skirts — converting the entire lower side profile from rocker to lower body line into a carbon-finish panel. Manufactured in Europe to factory-spec tolerances and quality-controlled by BYC Performance, this CLA C118 carbon side skirt bolts directly to OEM mounting points.

This is the full side-skirt replacement version — the stock skirt is removed and the carbon skirt is fitted in its place. If you're looking for an add-on extension that attaches beneath your existing skirt, see our sister SKU CLA C118 Carbon Side Skirt Add-on in our catalog. This replacement skirt brings the CLA45 S AMG's aggressive side profile to every CLA C118 trim.

Key Features

• Prepreg (Dry) Carbon Technology: Autoclave-cured under high heat and pressure; a more consistent weave.
• Full Replacement Skirt: Replaces the stock side skirt — converts the entire rocker-to-lower-body profile to carbon.
• AMG-Inspired Design: Inspired by the CLA45 S AMG's aggressive side-skirt profile.
• Aero Profile: Optimized side profile directs airflow along the body.
• Race-Grade Strength: Very high strength for its weight, resists stone chips and light side-contact.
• 2x2 Twill Carbon Weave: Authentic carbon look under high-gloss UV-protective resin.
• Left + Right Pair: Ships as a complete left (driver) + right (passenger) set.
• OEM Mounting Compatible: Bolts directly to stock skirt bolt and clip points.

Prepreg (Dry) Carbon vs. Wet Carbon

Most aftermarket carbon parts use wet lay-up. Prepreg (dry) carbon is autoclave-cured under heat and pressure, offers a more consistent weave, a controlled resin ratio, and is noticeably lighter and stronger. The production method widely chosen in motorsport.

Side Skirt vs. Side Skirt Add-on — What's the Difference?

Our catalog includes two different CLA C118 side-skirt products:

• Side Skirt (this product): A full replacement part that takes the place of the stock skirt. Stock skirt is removed, carbon skirt is bolted on.
• Side Skirt Add-on: An add-on extension bonded below the stock skirt. The stock part stays in place; the add-on lowers the visual profile.

For a more aggressive, fully-carbon side profile, choose the replacement. To preserve the stock skirt and add a subtle carbon detail, choose the add-on.

Vehicle Fitment

• Mercedes-Benz CLA C118 Coupé Sedan (2019-2024) — all trims
• Mercedes-Benz CLA Shooting Brake X118 (2019+)
• Mercedes-AMG CLA35 / CLA45 / CLA45 S C118
• CLA200, CLA220, CLA250 (AMG-pack and non-AMG-pack)

Important notes:

• This product is NOT compatible with the first-generation CLA C117 (2013-2019).
• Lower-profile differences may exist between AMG-pack and standard skirts; share a photo of your current skirt with our support team before ordering.
• This skirt is the replacement (full swap) version — if you wish to keep the stock skirt and add over it, choose the Side Skirt Add-on SKU.

Technical Specifications

• Material: Prepreg Carbon Fiber (2x2 Twill Weave)
• Manufacturing: Autoclave Cure
• Finish: High-Gloss Clear UV-Protective Resin
• Kit Includes: Left (driver) + Right (passenger) skirts
• Type: Full Replacement
• Origin: Europe

Installation Notes

Professional installation required:

1. Raise the vehicle on a lift.
2. Remove stock skirt under-bolts (8-10 per side).
3. Loosen clips with a plastic pry-tool.
4. Pull the stock skirt downward and out.
5. Test-fit the carbon skirt for alignment.
6. Secure with stock bolts + supplied hardware to the manufacturer's recommended torque.
7. Verify the gap between carbon skirt and door is even.
8. Repeat for the opposite side.

Care & Maintenance

Wash with pH-neutral shampoo. After track use, wipe the carbon surface with a carbon-safe cleaner. Apply carbon sealant every 6 months.

FAQ

Compatible with CLA C117?
No. C117 and C118 have different side-profile geometry.

Difference between Side Skirt and Side Skirt Add-on?
This is the full replacement that takes the place of the stock skirt. The Add-on is an extension that bonds below the existing stock skirt. Choose the replacement for a more aggressive look, the add-on for a subtle accent.

Compatible with all CLA C118 trims?
Yes, CLA200/CLA220/CLA250/CLA35/CLA45/CLA45 S all fit (confirm AMG-pack vs non-AMG-pack with support).

Compatible with X118 Shooting Brake?
Yes, X118 wagon and C118 sedan share side-profile geometry.

Are left and right sold separately?
No, sold as a pair.

Will rain damage dry carbon?
No, autoclave-cured carbon is waterproof.

Shipping time?
In-stock items ship within 1-3 business days.

Warranty?
BYC Performance offers a 12-month manufacturer warranty.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium carbon fiber parts from leading European manufacturers. Our catalog includes Mercedes AMG carbon parts, CLA C118 carbon side skirts, C63 W205 carbon skirts, BMW M3 carbon skirts, and many more high-quality components.