XYZ Racing Hollow Rear Brake Kit — Mercedes Benz CLK 240 W209 (2003-2009)

The W209 CLK 240 was built as a relaxed grand tourer, not a circuit weapon. Its M112 2.6-litre V6 and softly damped chassis prioritise comfort over bite, and the standard rear brakes were specified to match. Push one on a fast B-road or a track day and the factory rears are the first component to feel overwhelmed under repeated heavy braking.

The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz CLK 240 W209 addresses that directly, swapping the modest factory rear setup for a larger two-piece floating disc and multi-piston caliper package. It restores rear braking authority on a rear-wheel-drive coupe that leans hard on its back axle for stability when you trail the brakes into a corner.

What this rear brake kit does for your 2003-2009 Mercedes Benz CLK 240 W209

On the road you will notice firmer, more progressive pedal feel and a rear axle that stays composed when you brake late into a roundabout or down into a corner. The two-piece floating disc trims unsprung mass at each rear corner, which helps the W209’s soft rear suspension settle faster over mid-corner bumps. Three pad compounds, Street, Sport and Racing, let you match the kit to how you actually use the car, from daily commuting to back-to-back track sessions where the factory rear pads would glaze. Sharper rear bite also takes heat and workload off the front brakes, so the whole car holds up better when you string several hard stops together.

About the Hollow Rear Brake Kit

The kit centres on a two-piece floating disc whose friction ring rides on an alloy bell and runs internal vanes to remove rotating and unsprung mass without surrendering thermal capacity. The larger swept area and increased vane count help the disc shed heat between stops, which is exactly where an undersized factory rear brake struggles when worked hard. The kit pairs that disc with a hollow-body forged multi-piston caliper as standard, which clamps far more evenly than the sliding single-piston unit Mercedes fitted, giving more consistent pad wear and a firmer bite point. You choose from three pad compounds, Street for refined road use, Sport for spirited fast-road driving and occasional track, and Racing for track work, plus painted caliper finishes 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 or candy options. It is built as a rear-axle upgrade to balance a front kit or to lift overall braking on a Mercedes Benz CLK 240 W209 that sees harder use than its designers intended.

Fitment for the Mercedes Benz CLK 240 W209 (2003-2009)

This kit is built for the W209-chassis Mercedes Benz CLK 240, covering the 2003 to 2009 model years, and mounts to the rear axle. It is designed around the CLK 240’s factory hub and rear mounting geometry. Confirm your exact build year and chassis code against the fitment data before ordering, since the W209 ran several minor revisions across its life.

What buyers also search for

• Mercedes Benz CLK 240 W209 rear brake upgrade for fast-road and occasional track use
• W209 CLK 240 big brake kit with Street, Sport or Racing pad compounds
• Mercedes CLK 240 two-piece floating disc rear brakes that reduce unsprung mass
• Rear-axle brake kit to balance brake bias on the W209 CLK coupe and cabriolet
• CLK 240 caliper colour options including Red, Yellow, Gold, Black and Anodized Black

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