Mercedes-Benz CLS C257 Rear Trunk Spoiler, Carbon Fiber / FRP, 2018–2020

Rear Trunk Spoiler for Mercedes-Benz CLS C257

Add a defined styling accent along the rear trunk contour of your listed CLS C257. Choose the existing Glossy Carbon Fiber or Matte Black FRP option to suit your preferred finish. These are alternative material options, not two spoilers supplied together. This is an exterior trunk spoiler, not a complete trunk lid or roof spoiler.

Listed Vehicle Applications

• Mercedes-Benz CLS-Class C257, described as Sedan in the source.
• Petrol models named: CLS300, CLS350 and CLS450.
• Diesel models named: CLS220d, CLS300d, CLS350d and CLS400d.
• Source-listed configurations: Base/Sport and CLS53 AMG.
• Main source range: 2018, 2019 and 2020.

Confirm VIN, production date, regional model year, C257 chassis, exact trim and actual trunk-lid contour before ordering. The combined engine names, configurations and years are not a verified model-by-year compatibility table. In particular, verify the source-listed CLS220d designation and its C257 application before relying on it.

2021 requires separate verification. The detailed fitment adds “(2021)” and hidden filter entries include that year, while the title and introduction specify 2018–2020. The parenthesized entry does not establish all 2021 configurations or facelift compatibility. The public title and SEO retain the narrower 2018–2020 range.

Specific 4MATIC and special-edition applications are not independently confirmed by filter entries. A hidden CLS53 AMG S entry does not establish that designation or compatibility. Other CLS generations, Shooting Brake/wagon and modified trunk lids are not confirmed applications.

Material Options

• Glossy Carbon Fiber: the source describes molded 3×3 weave carbon fiber. The gloss option corresponds to the source's shiny finish and double-layer UV-protected clear-coat description. A dry-carbon process, full laminate composition and curing method are not supplied.
• Matte Black FRP: fiberglass-reinforced plastic with the matte black finish named by the existing option. This is not represented as carbon fiber, visible 3×3 carbon weave or a gloss-clear-coated finish. Do not apply the generic shiny carbon-fiber wording to this option.

Original material option names are retained. Dimensions, measured component weights and comparative weight savings are not supplied. Permanent resistance to fading is not established for either option. Surface preparation or refinishing requirements for FRP are not documented; confirm them if a custom finish is planned.

Trunk Profile and Existing Spoilers

Compare the full mounting footprint with the actual trunk surface. Fit over an existing factory or aftermarket spoiler, removal procedures and coverage of old mounting holes are not established. Confirm the mounting arrangement before disturbing original trim. A model badge alone does not confirm compatibility with a changed trunk lid or existing spoiler.

Package and Attachment

The selected spoiler option and installation tape are listed. Exact molded piece count and tape quantity are not itemized, and the source does not separately allocate tape quantities by material. Screws, brackets, clips, replacement trunk hardware and additional adhesive products are not listed as included.

The source describes no-drill double-sided-tape fitting. Confirm suitable contact area and secure retention for the selected material and actual mounting surface. Included tape does not establish secure attachment on every painted, wrapped, repaired or altered surface.

Installation Guidance

Test-fit before removing adhesive backing or disturbing existing trim. Professional installation is recommended if the contour, material-specific attachment needs or surface condition is uncertain. Do not drill or force a mismatched part into position.

Prepare clean, dry adhesive contact surfaces and follow the adhesive manufacturer's application-temperature, pressure and curing instructions. Check full trunk opening and closing clearance, normal latch operation, rear visibility and unobstructed lights, camera and release controls where fitted. The original general visibility claim must be checked on the actual vehicle.

Verify secure attachment before driving and recheck according to the installer's guidance. Do not use the spoiler as a trunk handle or lifting point.

Performance Scope

This listing describes an exterior styling upgrade. No measured drag, downforce or vehicle-stability results are supplied, so reduced drag, increased rear downforce and improved handling are not promised.

Frequently Asked Questions

Are Carbon Fiber and FRP supplied together?
No. Select one of the existing material options; the listing does not describe both options supplied together.

Does Matte Black FRP have visible carbon weave?
It is the matte black fiberglass-reinforced-plastic option, not the Glossy Carbon Fiber option.

Is 2021 fitment confirmed?
The source includes a parenthesized 2021 entry but otherwise specifies 2018–2020. Verify the exact 2021 vehicle and trunk profile separately.

Is tape included?
Tape is listed. Correct fit, surface preparation, curing and secure attachment still need checking for the selected option.

Is the carbon option dry carbon?
The source describes molded 3×3 carbon fiber without confirming a dry-carbon process.