XYZ Racing Hollow Rear Brake Kit — Mercedes Benz C CLASS W203 C 350 (2005-2007)

The facelift W203 C 350 paired Mercedes’ 272 bhp M272 V6 with a chassis tuned first for executive refinement, and the factory rear brakes were specified for that brief rather than for back-to-back hard stops. This XYZ Racing Hollow Rear Brake Kit reworks the back axle of the car – the end that settles the C 350 as weight pitches forward and the rears go light under heavy braking.

On a rear-drive saloon this matters more than the spec sheet suggests: a rear axle that keeps biting under load is what holds the C 350 straight and composed when you stand on the middle pedal from speed. Supplied as a matched pair of rear calipers and discs, and built for fast-road use and the occasional track day, this kit gives the W203 a back end that recovers heat between stops instead of cooking its pads on a long descent or a busy B-road.

What this brake kit does for your 2005-2007 Mercedes Benz C Class W203 C 350

The two-piece floating discs use hollow vanes to strip rotating and unsprung mass from the rear corners, which the W203 feels as slightly sharper response over mid-corner bumps and quicker pad bite. You get a firmer, more linear pedal that does not go long after a few committed stops, and a rear axle that resists the fade the standard discs show under repeat braking. Three pad compounds – Street for quiet, low-dust daily running, Sport for fast road and the odd track day, and Racing for sustained circuit work – let you match the rear bite to how you actually drive the C 350. The result is more braking confidence from the back of the car and a more planted, less nervous stop when you brake deep into a corner.

About the Hollow rear brake kit

The kit centres on XYZ Racing’s two-piece floating rear discs, with hollow vanes that shed heat faster and cut weight at the wheel rather than relying on disc thickness alone. The matched calipers, hollow-body as standard, clamp a larger effective pad area than the original rear setup, raising thermal capacity so the rears hold their bite through a sequence of hard stops; a Hollow Racing upgrade – no dust cover, rated to 1000C, with a two-year warranty – is offered for cars that see real track time. Pad compound is a real choice here: Street suits road use and cold-brake response, Sport trades a little cold bite for higher fade resistance, and Racing is built for sustained track temperatures. Included caliper finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone for £150, plus premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange. Discs come drilled or slotted at the same price, with two-tone centre bells in five anodized colours or titanium selectable at checkout. Everything is sized to the rear axle of the C 350 specifically, not adapted from a generic rear kit.

Fitment for the Mercedes Benz C CLASS W203 C 350 (2005-2007)

This kit fits the W203 C 350 from the 2005 facelift through to the end of W203 production in 2007. It is a rear-axle kit, designed around that chassis and model-year span. Confirm your car is the C 350 variant, then set your pad compound, caliper finish and disc style from the options above before checkout.

What buyers also search for

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Pick your pad compound, caliper finish and disc style from the options above to configure the rear brake kit for your W203 C 350.