XYZ Racing Hollow Rear Brake Kit — Mercedes Benz CL 280K W209 (2005-2009)

The W209 was conceived as a refined coupe and cabriolet first and a driver’s car second, so its factory rear brakes are sized for relaxed motorway stops rather than committed back-road or circuit use. The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz CL 280K W209 (2005-2009) targets exactly that shortfall at the rear axle, where a heavy, front-engined grand tourer dumps heat every time you haul it down from a cruise.

Treat this as the rear half of a balanced brake upgrade. Bigger two-piece floating discs and a fixed caliper resist the long, soft pedal you feel after a fast descent or a string of hard stops, keeping the back of the car settled under trail-braking instead of going light and nervous.

What this brake kit does for your 2005-2009 Mercedes Benz CL 280K W209

The first thing you notice is pedal feel: a fixed caliper flexes far less than the sliding factory item, so bite arrives early and stays consistent through a session rather than going vague as temperatures climb. The two-piece floating disc design sheds heat faster and trims rotating and unsprung mass at the rear, which helps the W209’s comfort-biased back axle stay composed over mid-corner bumps. Three pad compounds, Street, Sport and Racing, let you match the rear bite to how you actually drive, from refined daily use to repeated heavy stops on a spirited run. The net result is a more confident, more predictable car the harder you lean on it.

About the Hollow Rear Brake Kit

The kit pairs an enlarged two-piece floating disc with a multi-piston fixed caliper engineered to hold its shape under thermal and mechanical load. The disc’s friction ring floats on an alloy bell so it can grow with heat without warping, while internal vaning moves air through the rotor and pulls heat out of the friction surface, which is what keeps performance repeatable when a conventional disc would start to fade. Caliper pistons clamp evenly across the pad for a firmer, shorter pedal and more progressive modulation. Pad material is your choice of Street, Sport or Racing compound, so the same hardware suits anything from quiet road manners to track-day heat. Painted caliper finishes come in Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone for a small upcharge and premium polished-forged and candy options on the list as well. As a rear-specific kit, it is designed to complement a front upgrade and restore front-to-rear brake balance on a heavy coupe.

Fitment for the Mercedes Benz CL 280K W209 (2005-2009)

This kit is built for the rear axle of the W209-chassis Mercedes Benz CL 280K across the 2005-2009 model years. It fits the rear position only, as confirmed by the supplied specification, and is intended to work alongside a matching front brake setup. Confirm your exact chassis code and year before you order.

What buyers also search for

• Mercedes Benz CL 280K W209 rear big brake kit for road and track use
• W209 rear brake upgrade with two-piece floating discs to cut fade on long descents
• CL 280K rear caliper options in Red, Yellow, Gold, Black or Anodized Black
• Mercedes Benz W209 rear brake kit with Street, Sport or Racing pad compounds
• 2005-2009 CL 280K brake balance upgrade to pair with a front big brake kit

Choose your pad compound, disc style and caliper finish from the options above to build your rear brake kit.