Brembo Prime Brake Disc offers outstanding performance, reliability, durability, and comfort in al...Brembo Prime Brake Disc offers outstanding performance, reliability, durability, and comfort in all conditions. The UV-coated brake disc range provides excellent quality with low environmental impact, featuring a unique metal finish for an eye-catching appearance. It boasts high resistance to corrosion, chemicals, and humidity, along with zero volatile organic compounds (VOCs) and components not hazardous to health. The intelligent marking allows for easy reading of minimum thickness for replacement, and the disc is ready for installation. The braking surface protective coating ensures complete protection. PVT Ventilation technology improves cooling and resistance to thermal cracking by over 40% through the use of pillars instead of vanes, leading to increased resistance to cracks, greater heat exchange surface area, and enhanced air turbulence. This specific brake disc is perforated/vented, has a thickness of 32mm, 5 bolt holes, and includes bolts/screws. Its height is 52mm, centering diameter is 67mm, and outer diameter is 344mm. It is made of high-carbon material, coated, with a minimum thickness of 30mm, and a tightening torque of 130 Nm. This product is part of the COATED DISC LINE, is drilled, and is designed for the front axle. It is suitable for vehicles with a sports package, specifically for SA codes 950 and P96, and fits MERCEDES-BENZ CLS (C218) and CLS Shooting Brake (X218). Equivalent part numbers include 2184210412 and A2184210412.
The Brembo Prime Brake Disc (09.B855.51) is designed for performance-minded drivers of Mercedes-Benz CLS (C218) and CLS Shooting Brake (X218) models equipped with sports packages. It offers superior thermal management and a high-quality UV-coated finish that provides excellent corrosion resistance and an eye-catching aesthetic. While this high-carbon, drilled, and vented disc delivers exceptional reliability, it is a specialized component that requires exact adherence to vehicle fitment specifications and tightening torque requirements.
All features
Model Part Number
09.B855.51
Brand
Brembo
Extended Product Information
FAQs
Does this package include a pair of discs?
This guide covers the 09.B855.51 unit; please verify if your purchase includes a single disc or a set.
What is the minimum thickness for this disc?
The minimum thickness is 30mm, as indicated by the built-in markings on the disc.
Can I use these on a non-sports package vehicle?
No, these are specifically designed for vehicles with SA codes 950 and P96.
Do I need to wash off the coating before use?
No, the protective coating is designed to be ready for installation and will clear naturally during the first few braking cycles.
What is the bolt hole configuration?
The disc features a 5-bolt hole pattern.
What is the required tightening torque?
The tightening torque for this brake disc is 130 Nm.
Troubleshooting
Brake squeal or noise shortly after installation
Ensure that the pad bedding-in process was followed correctly and that all clips/hardware are properly lubricated and torqued.
Premature corrosion appearing on the disc
While the disc is UV-coated, excessive use of acidic wheel cleaners can degrade the finish. Use pH-neutral cleaning products.
Uneven wear patterns
Check for stuck brake calipers or uneven pressure distribution, and verify the wheel alignment.
Pros and Cons
Pros
Significantly improved cooling efficiency via PVT technology
High resistance to thermal cracking and heat fatigue
Durable anti-corrosion UV-coating
Easy-to-read minimum thickness indicators
Direct fit for specific Mercedes-Benz sports models
Cons
Specific to front axle installation only
Limited compatibility to specific Mercedes-Benz chassis
Higher maintenance requirements associated with drilled performance rotors
Setup, Compatibility & Care
This brake disc is designed specifically for the front axle of the Mercedes-Benz CLS (C218) and CLS Shooting Brake (X218) with sports package SA codes 950 and P96. When installing, it is critical to observe the manufacturer's specified tightening torque of 130 Nm to ensure the longevity of the mounting hardware. Before installation, ensure the wheel hub is clean and free of rust to prevent run-out issues. While the protective coating is designed for durability, avoid using harsh acidic wheel cleaners that can strip the finish over time. Regular visual inspections are recommended using the built-in wear markers; ensure that the thickness never drops below the 30mm safety threshold.