
XYZ Racing Hollow Rear Brake Kit — Mercedes Benz CLS 500 C219 (2004-2010)
SKU: XYZ-BRK-BKR-ME-061-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 CLS 500 C219 (2004-2010)
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Caliper render for this kit:

The C219 CLS 500 carries the better part of 1.8 tonnes and was built to hold three-figure cruising speeds across a continent, which is exactly the duty that bakes the heat out of a standard rear brake. The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz CLS 500 C219 (2004-2010) swaps that softening factory rear end for a two-piece floating disc and fixed-caliper setup sized for repeated hard stops from speed.
This is the rear half of the braking equation, the axle that settles a heavy four-door coupe and keeps the balance honest as you wash off pace. Paired with the right pad, it brings the rear of the car up to the standard the front already needs on a GT this fast and this heavy.
What this brake kit does for your 2004-2010 Mercedes Benz CLS 500 C219
The two-piece floating disc cuts rotating and unsprung mass at the rear hub, so the axle reacts faster and the brake responds with less lag the moment you lean on the pedal. A fixed caliper clamps the pad evenly across its face, which holds a firmer, more repeatable pedal than the sliding factory unit once temperatures climb. Three pad compounds let you match the car to its job: Street for ordinary road use, Sport for harder fast-road driving and the odd track day, and Racing for track sessions where the rear needs to take real heat without fading. On a car as heavy as the CLS 500, that thermal headroom is what stops the second and third hard stop feeling longer than the first.
About the Hollow rear brake kit
The kit is named for its construction: a two-piece floating disc whose friction ring rides on an alloy bell, machined to shed weight from the disc itself while keeping the swept area needed to scrub speed off a heavy saloon-coupe, and to grow with heat without warping. It runs a hollow-body forged multi-piston caliper as standard in place of the factory single-piston slider, giving more even clamping and a stiffer assembly under load. Painted calipers ship in a choice of 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 rear hardware can be set off against the wheel or kept discreet behind it. Pad selection is the tuning lever here: the Street, Sport and Racing compounds change bite and heat tolerance without altering the rest of the kit. Built as a direct fit for the C219 rear axle, it is engineered to lift braking consistency on a chassis that spends its life carrying weight at speed.
Fitment for the Mercedes Benz CLS 500 C219 (2004-2010)
This kit is built for the rear axle of the C219-generation Mercedes Benz CLS 500, covering the 2004 to 2010 model years. It fits the CLS 500 specifically rather than the wider CLS range, so confirm your chassis code reads C219 before you order. Caliper colour, disc style and pad compound are selected when you order.
What buyers also search for
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Choose your pad compound, disc style and caliper colour from the options above to build your C219 rear brake kit.
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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Front & rear brake kits, coilovers and more for this car
