2020-2026+ Mercedes-AMG GLA45S / GLA35 (H247) Carbon Ceramic Brake Kit
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
2020-2026+ Mercedes-AMG GLA45S / GLA35 (H247) Carbon Ceramic Brake Kit — OEM-Size Replacement
The H247 AMG GLA45S and GLA35 put compact-SUV mass through AMG brakes that see high heat in repeated mountain, autobahn, and track-day stops. This OEM-size StopFlex kit replaces the GLA45S 360mm front / 330mm rear or GLA35 350mm front / 330mm rear iron setup with carbon-ceramic rotors, matched pads, hats, and floating hardware, preserving the factory brake envelope while reducing dust and unsprung rotating mass. Order by exact trim and rotor size, because the GLA45S and GLA35 front packages are not the same.
- Built only for H247 AMG GLA45S 360mm front / 330mm rear and H247 AMG GLA35 350mm front / 330mm rear brake configurations.
- Carbon-ceramic friction rings handle repeated high-temperature stops better than OEM iron rotors and shed far less visible dust on AMG open-spoke wheels.
- Included hats and floating hardware keep the OEM-size rotor position and thermal expansion control matched to the factory AMG caliper layout.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Mercedes-AMG GLA45S / GLA35 (H247) |
| Model years | 2020-2026+ |
| Front rotor reference | GLA45S: 360mm; GLA35: 350mm |
| Rear rotor reference | GLA45S/GLA35: 330mm |
| 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 2020-2026+ GLA AMG?
No. This page is limited to H247 Mercedes-AMG GLA45S with 360mm front and 330mm rear rotors, and H247 Mercedes-AMG GLA35 with 350mm front and 330mm rear rotors. Confirm your trim and current rotor diameters before ordering.
Do I need different wheels or calipers?
The kit is designed as an OEM-size replacement for the listed AMG caliper and rotor package, not a big-brake conversion. Wheel clearance should match the factory brake envelope, but non-OE wheels should still be checked for barrel and spoke clearance.
Will the rear electronic parking brake and auto-hold still work?
Yes, the rear kit is sized around the factory 330mm H247 AMG rear brake layout, so the original rear caliper, electronic parking brake function, and vehicle brake controls remain in use.
Why switch this GLA45S or GLA35 from iron rotors to carbon ceramic?
Carbon-ceramic rotors reduce brake dust, resist heat-related fade in repeated hard stops, and cut rotating unsprung weight versus comparable iron discs. The payoff is most noticeable on a heavy, fast AWD compact AMG used for spirited driving or track days.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
More Contact Information
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