2012-2018 Mercedes-AMG CLS63 S / CLS63 (C218/X218) Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2012-2018 Mercedes-AMG CLS63 S / CLS63 (C218/X218) Carbon Ceramic Brake Kit — OEM-Size Replacement
The C218/X218 CLS63 and CLS63 S put S-Class-level weight and M157 torque through AMG brakes that were sold with 360 mm iron front rotors or the larger 402 mm factory carbon-ceramic front package, with 360 mm rear rotors. This StopFlex OEM-size replacement kit is built for the exact rotor configuration ordered for the car: carbon-ceramic rotors, matched pads, hats, and floating hardware. The reason to move here is specific to this chassis: lower rotating mass at all four corners, cleaner open AMG wheels, and more stable brake behavior during repeated high-speed stops without changing the car’s basic caliper layout.
- Front fitment is limited to the listed CLS63/CLS63 S rotor reference: 360 mm OEM-size replacement or 402 mm factory carbon-ceramic replacement, depending on the car’s original brake package.
- Rear fitment uses the 360 mm CLS63/CLS63 S rotor reference and retains the factory rear brake layout rather than converting the car to a universal big-brake kit.
- The kit includes carbon-ceramic rotors, pads, hats, and floating hardware so the wear components and mounting stack are matched for the C218 coupe and X218 Shooting Brake platform.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Mercedes-AMG CLS63 S / CLS63 (C218/X218) |
| Model years | 2012-2018 |
| Front rotor reference | CLS63S/CLS63: 360mm, 402mm (CCB) |
| Rear rotor reference | CLS63S/CLS63: 360mm |
| Page type | OEM-size carbon ceramic replacement |
| Minimum wheel size | 19" (for the 360 mm rotor) |
For OEM replacement orders, StopFlex builds around the factory rotor specification shown for this vehicle. Front floating-caliper setups require manual review before production. If the car uses aftermarket calipers such as Brembo, AP Racing, Alcon, or Wilwood, the order can still be built, but the exact caliper model, pad shape, and rotor dimensions must be confirmed before production.
This setup uses a 360 mm rotor, so the minimum wheel size is 19". Wheels under 19" will not clear the caliper and rotor, and spoke profile and offset affect clearance too — confirm your exact wheels before ordering.
Why StopFlex CCB
Lower Unsprung Mass
StopFlex carbon-ceramic rotors are engineered to reduce rotor mass versus comparable iron discs, helping the suspension react cleaner and the steering feel more precise.
High-Temperature Stability
The carbon-silicon-carbide matrix is built for stable braking behavior at temperatures that can push iron rotors into heavy fade.
Rust-Free Rotor Surface
Carbon ceramic does not form orange flash rust after rain, washing, or storage, keeping the visible rotor face cleaner behind open wheels.
Long Street-Service Potential
In normal road use with matched pads and proper bedding, StopFlex CCB rotors are designed for far longer service life than typical iron replacement rotors.
Low Visible Dust
When paired with matched StopFlex pads, the system produces very low visible brake dust compared with conventional iron rotor and pad combinations.
Premium Ceramic-Glaze Appearance
StopFlex's proprietary coating creates a bright, high-end ceramic-glaze finish with subtle glaze texture and a more premium visual character behind open wheels.
Street-Usable Cold Bite
Street Spec and Track-Day Spec rotors are designed for normal first-stop road use, including cold-weather operation. Motorsport Spec is the competition-focused exception.
Continuous Fiber Reinforcement
Long-fiber carbon ceramic construction improves structural strength and thermal durability versus chopped-fiber approaches.
Custom Rotor Hat Color
Every StopFlex OEM replacement order can be built with a custom rotor hat color, giving the carbon ceramic rotor package a cleaner match with the wheel, body color, and overall build style.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat can still soak into pads, fluid, seals, calipers, wheels, and nearby components. For long track sessions, mountain descents, or sustained aggressive driving, brake cooling and high-temperature fluid are still recommended.
Street / Track-Day / Motorsport Rotor Options
Street Spec
Ceramic coating, cross-drilled face, and large cooling channels.
Best for daily driving and premium street builds that need clean cold bite, low dust, corrosion-free appearance, and long service life.
Track-Day Spec
Ceramic coating, blank face, and honeycomb cooling channels.
Best for fast-road and track-day use where repeated braking stability matters more than maximum visual drilling style.
Motorsport Spec
Uncoated blank face with honeycomb cooling channels.
Best for race-focused builds that run competition pads, high-temperature fluid, cooling strategy, and a proper warm-up window. Not the default street choice.
Package Scope
| Item | Details |
|---|---|
| CCB rotors | Full-car set by default |
| CCB brake pads | Matched for StopFlex carbon ceramic rotors |
| 7075 aluminum floating rotor hats | Vehicle-specific fitment |
| Stainless floating hardware | Full-car hardware set |
| Rotor hat color | Custom rotor hat colors are available for every OEM replacement order. |
| Order scope | Default listing is full-car set. Front-only or rear-only orders can be arranged after confirmation. |
FAQ
Will this kit fit every 2012-2018 CLS63 or CLS63 S?
No. Compatibility is limited to C218/X218 CLS63 and CLS63 S cars that match the rotor sizes listed on this page: 360 mm or 402 mm front reference and 360 mm rear reference. Confirm the existing front rotor diameter before ordering because Mercedes offered different AMG brake packages on this chassis.
Will my factory wheels clear the 402 mm front carbon-ceramic setup?
Wheel clearance depends on the brake package already on the car. If your CLS63/CLS63 S left the factory with the 402 mm carbon-ceramic front setup, this OEM-size replacement is intended to sit in that same envelope; if the car has 360 mm fronts, do not assume 402 mm clearance without verifying wheel diameter, barrel shape, and caliper clearance.
Does the kit keep the electronic parking brake and normal street functions?
Yes, the kit is an OEM-size replacement for the listed CLS63/CLS63 S rotor configuration and does not change the rear parking-brake system. ABS, stability control, auto-hold behavior, and pedal feel still depend on correct installation, bedding, pad sensors, and brake fluid condition.
Why replace AMG iron rotors or worn OEM carbon-ceramics with this kit?
Compared with iron rotors, carbon-ceramic rotors reduce brake dust and rotating mass while improving repeat-stop temperature stability. Compared with dealer carbon-ceramic replacement parts, this StopFlex kit gives the CLS63/CLS63 S owner a complete rotor, pad, hat, and hardware package for the exact 360 mm or 402 mm front and 360 mm rear setup.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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