
XYZ Racing Hollow Rear Brake Kit — Mercedes Benz C CLASS W203 C 230 (2000-2007)
SKU: XYZ-BRK-BKR-ME-018-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø330–421 mm
- Caliper pots6 / 8-pot
- Lead time10–15 working days
Fits Mercedes Benz C CLASS W203 C 230 (2000-2007)
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Caliper render for this kit:

Rear brake heat is the W203’s quiet limiter on a circuit. The C 230 Kompressor was built as a quick saloon rather than a track car, and its standard rear discs run out of thermal headroom long before a committed driver runs out of ambition. This XYZ Racing rear big brake kit for the Mercedes Benz C-Class W203 C 230 puts that right.
Being rear-wheel drive, the W203 leans on its back axle for stability under heavy braking, so rear capacity is not an afterthought on this chassis. Supplied as a matched pair of rear calipers and discs, the kit adds disc area and a fresh caliper to a corner the factory left modest, giving you a brake balance that holds its shape as the pace climbs.
What this brake kit does for your 2000-2007 Mercedes Benz C Class W203 C 230
On the road you will notice a firmer, more reassuring pedal and shorter recovery between hard stops, which matters on a car now well into its second or third decade with tired original hardware. The two-piece floating discs use hollow vanes to trim rotating mass at the rear axle, so the back end settles faster and is less inclined to lock under trail-braking. Three pad compounds let you match the kit to how you drive: Street for quiet, low-dust daily use, Sport for fast-road bite and a wider heat range, and Racing for repeated heavy stops. Because the rear works harder and fades later, the front brakes stay inside their window for longer and the whole car feels more planted into a corner.
About the Hollow Rear Brake Kit
The Hollow Rear Brake Kit takes its name from the lightened disc, where the vanes are hollowed to cut rotating and unsprung mass without surrendering swept area. Less weight spinning at the rear axle means the discs shed heat more quickly and the suspension has less inertia to manage over kerbs and mid-corner bumps. The kit pairs a two-piece floating disc with an upgraded caliper that is hollow-body as standard; a Hollow Racing upgrade – no dust cover, rated to 1000C, with a two-year warranty – is offered for cars run hard on track. 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. Pad material is selectable across three compounds, Street, Sport and Racing, so the same hardware covers a comfortable commuter or a hard track day depending on what you fit. Discs come drilled or slotted at the same price, with two-tone centre bells in five anodized colours or titanium selectable at checkout. It is a bolt-on rear upgrade for owners who want real thermal capacity, not just a colour change behind the wheel.
Fitment for the Mercedes Benz C CLASS W203 C 230 (2000-2007)
This kit is built specifically for the W203-generation Mercedes Benz C-Class in C 230 specification, covering the 2000 to 2007 production run. It fits the rear axle of that chassis as a direct application. Confirm your exact build year and trim before ordering so the rear disc and caliper match your car.
What buyers also search for
- Mercedes C-Class W203 C 230 rear brake upgrade for road and track use
- W203 C 230 rear big brake kit with Street, Sport or Racing pad options
- Mercedes Benz C-Class rear disc upgrade to add braking heat capacity
- C 230 Kompressor rear brake kit with painted and premium caliper finishes
- RWD W203 rear brake balance upgrade for harder driving
Choose your pad compound, caliper finish and disc style, and the configurator above will build your rear kit for the W203 C 230.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 330–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 6 / 8-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
Parking brake: Retains your original (OE) handbrake.
Choosing your spec
Every kit is built to order around the choices you make above. Here is what each option actually changes, so you can spec yours with confidence.
Brake pads — Street, Sport or Racing
Every kit ships with a full set of high-performance pads; the compound is your call.
Street is the right default for fast-road driving — a strong, progressive cold bite with low noise, low dust and long disc life. Sport raises the working temperature and adds bite and fade resistance for hard road use and the occasional track day, while still behaving on a cold morning. Racing is a track compound built for sustained abuse: huge fade resistance and bite once heat is in it, at the cost of more noise and dust when cold. Match the pad to how hard you actually use the brakes — there is no benefit to a race pad that never gets up to temperature.
Caliper grade — Hollow vs Hollow Racing
Hollow is the standard caliper on every kit: a hollow-body forged caliper, lighter than a solid one, fitted with a dust cover and backed by a 5-year oil-leak warranty. For most fast-road and spirited track use it is all the caliper you need.
Hollow Racing is the track-grade upgrade. It runs the same hollow body but without a dust cover (so there is nothing to melt at sustained high temperature), uses a twin-metal piston that isolates heat travelling from the disc to the oil seal, and is rated to 1000°C. Available 330–356mm (rear). Warranty is 2 years on oil leaks and 10 years on appearance. Built for professional racing and repeated track days.

Caliper colour & finish
Painted colours (Red, Yellow, Gold, Black, Anodized Black) are included at no cost. Want an exact match to your car? Custom Color (+£150) paints the calipers to any Pantone code you supply (15–20 day lead time).
Polished Forged finishes are the flagship: a forged caliper given a mirror-polished surface treatment that shifts colour with the viewing angle. Beyond the looks, the polished surface dissipates heat better, resists rust and stands up to the weather. Choose Titanium (neochrome, +£350), Polished Gold (+£300) or Polished Silver (+£250). They look their best paired with a titanium centre bell. Care: clean only with a dilute neutral cleaner or water.
Candy colours (+£200) use a deep candy-paint and polishing process for a mirror-reflection, boutique finish — pick Teal, Blue, Red or Orange (shown below right).


Centre bells
The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. The standard anodized centre bell is included. The Two-tone bell (+£200) adds an anodized accent ring — choose Red, Yellow, Orange, Purple or Silver right here at checkout. The Titanium centre bell (+£500) is a forged titanium bell (bolts not included) that finishes off the polished-forged look.

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