Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Mercedes Benz C CLASS W205 C 300 4MATIC (2015-2021)
SKU: XYZ-BRK-BKF-ME-78-A-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø356–444 mm
- Caliper pots6 / 8 / 12-pot
- Lead time10–15 working days
Fits Mercedes Benz C CLASS W205 C 300 4MATIC (2015-2021)
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Caliper render for this kit:
The W205 C 300 4MATIC carries a kerb weight north of 1,600kg and an all-wheel-drive system that distributes torque confidently, yet the front axle still shoulders the lion’s share of deceleration. On track or during a sustained run on open roads, the stock front brakes communicate their limits clearly: a softening pedal, heat soak building through the compound, and a fade that arrives sooner than the road demands. This XYZ Racing front big brake kit is the direct response.
It is a front-axle kit, a matched pair of left and right calipers and two-piece floating discs. Three pad compounds, Street, Sport and Racing, allow the spec to match the actual use case rather than defaulting to a single compromise. Street or Sport suits a W205 that divides its time between motorway commutes and weekend driving; the Racing grade is there for a C 300 4MATIC running regular track sessions where sustained braking loads are part of the day.
What this brake kit does for your 2015-2021 Mercedes Benz C CLASS W205 C 300 4MATIC
The W205 C 300 4MATIC’s AWD system distributes braking load across all four corners, but the front axle accounts for the majority of deceleration force under hard stops. This kit raises the thermal threshold at that axle significantly, the hollow-vane disc drawing heat from the swept face faster than a solid rotor and reducing the pedal softening that stock hardware develops after repeated hard events. Reduced rotating and unsprung mass sharpens bite, the two-piece floating disc controls expansion, and braided lines keep the pedal firm, so the W205’s ABS and stability programmes have a more responsive brake surface to work with when the electronics intervene. The three-compound choice keeps the friction matched to use, from quiet, low-dust Street to track-focused Racing.
About the Hollow Front Brake Kit
This XYZ Racing front big brake kit is developed to address the thermal management shortcomings of standard fitment hardware under sustained use. The caliper is hollow-bodied as standard, paired with a hollow-vane disc that accelerates heat dissipation. The kit centres on three selectable compounds: Street for quiet, low-dust mixed-condition road use, Sport for drivers pushing harder on fast roads and occasional track visits, and Racing for circuit-focused sessions where high-temperature performance and consistent bite are the primary requirements. Discs come drilled or slotted at the same price, and an optional Hollow Racing caliper upgrade for serious track work drops the dust cover, is rated to 1000C and carries a two-year warranty. Concentrated on the front axle, the kit targets the most deceleration-loaded corners on the W205, the point where any C 300 4MATIC, regardless of surface condition, asks the most of its brake hardware.
Caliper finish is chosen when you order. Five painted colours are included at no extra cost: Red, Yellow, Gold, Black and Anodized Black. A Custom Color in any Pantone is £150, with premium polished-forged finishes in Titanium, Polished Gold and Polished Silver, plus candy finishes in Teal, Blue, Red and Orange. Two-tone centre bells in five anodized colours, or titanium, are selectable at checkout, giving the installation a visual character the factory caliper, often invisible behind the wheel, cannot match.
Fitment for the Mercedes Benz C CLASS W205 C 300 4MATIC (2015-2021)
This front brake kit is developed for the W205-generation Mercedes-Benz C-Class in C 300 4MATIC specification, covering the 2015 to 2021 production run. The 4MATIC designation is fitment-critical; the C 300 was also sold in rear-wheel-drive configuration, and front hub geometry and caliper clearances differ between the two drivetrain variants. Confirm your drivetrain specification before ordering.
What buyers also search for
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- Mercedes Benz C Class W205 front caliper upgrade with selectable pad compound options
- C 300 4MATIC big brake kit front axle 2015 to 2021
Select your pad compound, disc style and caliper finish when you order to complete the kit.
What’s in the kit
Front axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 356–444 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 6 / 8 / 12-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
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 286–380mm (front). 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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More XYZ products for the Mercedes Benz C CLASS W205 C 300 4MATIC appear here as the rest of the range publishes.