XYZ Racing Hollow Rear Brake Kit — Mercedes Benz GLK X204 (2008-2015)

The GLK X204 carries its mass high and tall, sitting on W204 C-Class underpinnings but with a heavier kerb weight and a taller centre of gravity that loads the rear axle hard under braking. On a long descent with the family aboard, or hauling a trailer down a motorway slip road, the factory rear discs heat-soak and the pedal goes long. This XYZ Racing Rear Big Brake Kit for the Mercedes Benz GLK X204 (2008-2015) addresses exactly that: more thermal capacity at the back axle, where an SUV this heavy needs it most.

The two-piece floating disc trims rotating and unsprung mass at each rear corner, so the brakes shed heat faster and recover quicker between stops. Supplied as a matched pair of rear calipers and rear discs, and paired with a fixed caliper and a pad compound matched to how you actually drive, it turns the GLK’s weakest braking trait into a strength.

What this brake kit does for your 2008-2015 Mercedes Benz GLK X204

After fitting, the first thing you feel is a firmer, more consistent rear bite that doesn’t soften as the discs warm through a series of stops. The two-piece floating disc lowers unsprung weight at the rear hubs, which sharpens the way the GLK settles under trail-braking and keeps the back end composed rather than wallowing. Repeated heavy stops, fully loaded or towing, no longer push the pedal towards the floor, and front-and-rear balance stays predictable. With three pad compounds on offer, you choose where on the road-to-track scale this kit sits, from quiet Street pads for daily use, through a Sport compound with more bite and heat range, to a Racing compound for sustained hard work.

About the rear big brake kit

The kit centres on a lightened two-piece floating disc, which reduces rotating mass and improves heat dissipation compared with a solid factory rotor; the ring can be specified drilled or slotted at the same price. It is a fixed-caliper big brake kit designed to bolt to the rear axle of the GLK X204 and run with your choice of pad material. The caliper is hollow-bodied as standard, with a Hollow Racing upgrade available (no dust cover, rated to 1000C, two-year warranty) for hard track work. Three compounds are available: Street for everyday, low-dust driving, Sport for spirited road use with a wider heat range, and Racing for track or heavy-load duty. Painted caliper colours come at no cost in Red, Yellow, Gold, Black or Anodized Black, with a Custom Color in any Pantone for GBP 150 more; premium polished-forged finishes (Titanium, Polished Gold, Polished Silver), candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange) and two-tone or titanium centre bells are also available. The focus throughout is rear-axle thermal capacity and pedal consistency on a vehicle that asks a lot of its brakes.

Fitment for the Mercedes Benz GLK X204 (2008-2015)

This kit is specified for the Mercedes Benz GLK X204 across the full 2008 to 2015 model run, mounting at the rear axle. Confirm your exact build year and wheel clearance against the spec shown before ordering.

What buyers also search for

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Choose your pad compound and caliper colour, then build your GLK X204 rear brake kit using the options above.