XYZ Racing Hollow Rear Brake Kit — Mercedes Benz A CLASS W176 A45 4WD (2013-2018)

The W176 A45’s 4MATIC layout sends drive rearward the moment you load the chassis, and that means the back axle does far more braking work than most hot-hatch owners expect, especially trail-braking into a corner with the M133 turbo still spooling. This XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz A Class W176 A45 4WD is built to give that rear axle the bite and heat tolerance the standard setup runs short of on a hard track day.

It is a rear-specific kit, a pair of left and right rear calipers with matched discs, so it is about balance as much as outright stopping power: more consistent rear retardation to settle a nose-led AWD platform under braking and help the car turn rather than push wide. You choose the pad compound and caliper finish to match how the car is actually used.

What this brake kit does for your 2013-2018 Mercedes Benz A Class W176 A45 4WD

On a 360bhp-plus hatch that weighs over 1.5 tonnes with the 4MATIC hardware aboard, the rear brakes fade before the driver does on repeat stops, and a fading rear axle on an understeer-biased car feels like the whole thing washing out. Adding heat capacity at the back restores a firmer, more predictable pedal deep into a braking zone. The hollow disc design sheds heat faster and trims unsprung and rotating mass, which the W176’s stiff-riding chassis rewards with sharper response. Pick the Racing compound for circuit use, the Sport compound for fast-road work with a wider heat range, or the Street pad if you want a quieter daily setup. The result is a rear end you can lean on rather than nurse.

About the Hollow Rear Brake Kit

The Hollow Rear Brake Kit replaces the standard rear discs and calipers with XYZ Racing’s hollow-vane, two-piece floating rotor design, engineered to move heat out of the disc face quickly and resist the fade that kills pedal feel under sustained load. The hollow construction also cuts rotating mass at the rear hub, which helps the suspension stay composed over kerbs and broken surfaces. Discs are offered drilled or slotted at the same price, with two-tone anodized centre bells in five colours or titanium selectable at checkout. Three pad compounds are offered, Street, Sport and Racing, so the kit can be specified anywhere from road manners to circuit aggression without changing the hardware. The hollow-body caliper is standard, with an optional Hollow Racing upgrade rated to 1000C, no dust cover and a two-year warranty for serious track use. Calipers come in the included painted colours (Red, Yellow, Gold, Black and Anodized Black), a Custom Color, or the premium polished and candy ranges, so the look behind the wheel matches the build. It is a bolt-on rear upgrade aimed at owners who track or fast-road their A45 and have found the factory rear brakes the limiting factor.

Fitment for the Mercedes Benz A CLASS W176 A45 4WD (2013-2018)

This kit is specified for the Mercedes Benz A Class W176 A45 4WD across the 2013 to 2018 model years and ships as a matched pair of rear calipers and discs. It fits the 4MATIC A45 specifically; confirm your chassis code reads W176 before ordering, as the wider A-Class range uses different rear hub and disc hardware.

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Choose your pad compound, disc style and caliper colour and configure your kit using the options above when you order.