XYZ Racing Hollow Rear Brake Kit — Mercedes Benz CLK 320 W209 (2003-2009)

The W209 CLK is a heavy rear-drive grand tourer, and on the standard car the rear axle does comparatively little of the stopping work. The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz CLK 320 W209 addresses that directly, adding rear braking torque and pulling the front-to-rear bias back into balance, exactly what a circa 1.5-tonne coupe wants once you start leaning on the pedal.

Built around two-piece floating discs that keep rotating and unsprung mass in check, this rear kit suits owners who drive their CLK 320 with intent: committed fast-road use, the odd track day, or simply a firmer and more reassuring pedal on a long sweep of B-road. Pad compound runs Street, Sport and Racing, so the setup scales to how the car is genuinely used.

What this brake kit does for your 2003-2009 Mercedes Benz CLK 320 W209

The W209 hides its mass well until you brake from speed repeatedly, at which point the soft factory rear setup starts to feel vague. Upgrading the rear with this kit restores torque to an axle that the standard car under-uses, sharpening pedal response and steadying the chassis under hard, trailing-brake entry. The two-piece floating disc sheds rotating mass and feeds air through its vanes, which helps the rear recover heat between stops and keeps bite consistent across a session. Choosing the Racing pad compound lifts fade resistance for track work, the Sport compound suits harder road and occasional circuit use, and the Street compound keeps things quiet and clean for daily driving. The result is a CLK that stops shorter, feels more planted, and inspires more confidence into a corner.

About the Hollow rear brake kit

This is a direct-fit rear performance brake assembly for the W209 CLK, replacing the standard rear disc and caliper with a higher-capacity setup. The two-piece floating disc is the headline feature: its friction ring rides on an alloy bell to grow with heat without warping, and the internal vanes lower rotating and unsprung mass without sacrificing thermal capacity, which sharpens response and aids heat management on a heavy GT. The performance caliper is a hollow-body forged unit as standard, offered in Red, Yellow, Gold, Black or Anodized Black at no extra cost, with a Custom Color in any Pantone for a small upcharge and premium polished-forged or candy finishes, so the kit can be specified to match or contrast the car. Three pad compounds are available: Street for road comfort, Sport for harder fast-road driving and occasional track, and Racing for sustained track abuse. It is engineered to balance the rear of a nose-heavy rear-drive coupe rather than simply bolt on bigger hardware.

Fitment for the Mercedes Benz CLK 320 W209 (2003-2009)

This kit is specified for the W209-generation Mercedes Benz CLK 320, covering the 2003 to 2009 model years, and fits the rear axle. Confirm your exact chassis code and build year against the listing before ordering, then choose your pad compound, disc style and caliper colour when you order.

What buyers also search for

• Mercedes CLK 320 W209 rear brake upgrade for fast road and occasional track use
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• CLK 320 Racing brake pads for repeat heavy stops without early fade
• Mercedes Benz CLK 320 rear caliper kit in red, yellow, gold, black or custom Pantone
• W209 rear brake balance upgrade for a heavy rear-drive coupe

Pick your pad compound, disc style and caliper colour from the options above to build your CLK 320 rear kit.