
XYZ Racing Hollow Front Brake Kit — Mercedes Benz ML 350 BLUETEC W166 (2011-2015)
SKU: XYZ-BRK-BKF-ME-10-J-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø380–444 mm
- Caliper pots8 / 12-pot
- Lead time10–15 working days
Fits Mercedes Benz ML 350 BLUETEC W166 (2011-2015)
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Caliper render for this kit:

The W166 ML 350 Bluetec tips the scales at more than 2,000kg in standard trim, and the diesel’s 620Nm torque output means it builds speed with a quietness that catches the brakes off guard. At motorway exit ramps, on Alpine passes, or at the towing limit, the factory front brakes have a defined thermal ceiling, and most W166 owners who drive this way discover it eventually.
The XYZ Racing front big brake kit addresses exactly that load case. Supplied as a matched pair of left and right front calipers and two-piece floating discs, it scales through a choice of pad compound to whatever you actually do in the car, from quiet road use to full track work.
What this brake kit does for your 2011-2015 Mercedes Benz ML 350 BLUETEC W166
On a high-riding SUV like the W166, weight transfer under braking is more pronounced than on a saloon: the elevated centre of gravity ensures that hard stops push significant load onto the front axle. The kit addresses the part of the braking system that takes that punishment first, raising the point at which fade becomes a factor. The hollow-vane rotor draws air through the disc as the wheel turns, the two-piece floating bell lets the friction ring expand cleanly, and the reduced rotating mass sharpens the pedal. That matters whether you are bringing 3.5 tonnes of ML-plus-trailer down a descent or braking late into bends on a fast B-road.
The three pad compounds suit the Bluetec’s braking character. Street is the quiet, low-dust road default; Sport carries more bite and heat range for mixed fast-road work where heat builds across longer runs; Racing is the track compound for repeated high-speed braking events where touring-grade material would soften underfoot. Disc faces are offered drilled or slotted at the same price, presenting cleanly through the open-spoke alloys ML owners typically run.
About the Front Brake Kit
This is XYZ Racing’s front-axle big brake kit, developed for heavier platforms that outgrow the thermal performance of standard hardware in sustained use. The two-piece floating, hollow-vane disc is the heat-management core, and the caliper is hollow-bodied as standard, light and stiff to resist flex under load. For owners taking the car onto circuit there is an optional Hollow Racing upgrade that deletes the dust cover, is rated to 1000C, and carries a two-year warranty. Braided lines firm the pedal, and centre bells can be upgraded to two-tone anodizing in five colours or titanium at checkout. Included painted caliper finishes are Red, Yellow, Gold, Black, and Anodized Black at no extra cost, with a Custom Color in any Pantone for an additional 150 pounds, plus premium polished-forged and candy finishes for owners who want the kit to read aggressively or sit cleanly against a factory exterior.
Fitment for the Mercedes Benz ML 350 BLUETEC W166 (2011-2015)
This kit is confirmed for the Mercedes Benz ML 350 Bluetec on the W166 platform, covering the full 2011 to 2015 production run and supplied as a left-and-right front pair. Front-axle fitment only. Confirm your build date and trim level before ordering, as mid-cycle production changes on the W166 can affect brake package compatibility.
What buyers also search for
- Mercedes Benz ML 350 Bluetec W166 front brake upgrade for towing and sustained load use
- W166 ML-Class big brake kit for repeated high-temperature stops on mountain descents
- Mercedes ML 350 diesel front brake fade solution for fast-road and track use
- XYZ Racing two-piece floating brake kit for Mercedes SUV front axle upgrade
- ML 350 Bluetec W166 caliper colour options to complement open-spoke alloy wheels
Choose your pad compound and caliper colour from the options above when you order.
What’s in the kit
Front axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 380–444 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 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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