XYZ Racing Hollow Front Brake Kit — Mercedes Benz S CLASS W221 S 350 (2005-2013)

The W221 S-Class carries close to two tonnes into every braking zone, and the S350’s V6 has enough performance to expose the standard front brakes on a long fast-road descent or during a track-day session. The XYZ Racing front big brake kit for the Mercedes Benz S CLASS W221 S 350 replaces the front-axle components with a matched pair of left and right calipers and two-piece floating discs that manage heat more aggressively than the OEM hardware.

At this weight, sustained hard braking is more demanding than it appears from the driver’s seat. The W221’s AIRMATIC system keeps the car feeling planted right up to the point where the brakes begin to fade, which means the first sign of thermal strain is often longer pedal travel rather than the car feeling unsettled. The hollow-vane disc addresses that by extracting heat from the rotor more efficiently, keeping the friction interface consistent across repeated stops.

What this brake kit does for your 2005-2013 Mercedes Benz S CLASS W221 S 350

The W221’s front axle carries the bulk of its mass under braking, and that is where this kit makes the most tangible difference. Improved heat dissipation from the hollow-vane disc keeps the pedal firm and progressive where a standard rotor would begin to glaze under sustained load, the two-piece floating bell lets the friction ring expand without coning, and reduced rotating mass sharpens response. The three pad compounds let you match the friction material to how the car is actually used: Street is the quiet, low-dust road default and Sport adds bite and heat range for a W221 that sees occasional spirited driving, while Racing is the track compound for an S350 that pulls circuit duty. Disc faces are offered drilled or slotted at the same price, letting owners dress the kit to suit the wheel design visible through the W221’s larger alloy sizes.

About the Front Brake Kit

The two-piece floating, hollow-vane disc is the defining specification. Unlike a conventional vented rotor, it uses internal vane geometry to move heat out of the braking surface faster, extending the window before pad or rotor temperatures begin to compromise pedal feel, and the floating bell lets the friction ring grow without distortion. This is a front-axle kit, targeting the end of the car that does the heavy lifting under deceleration on a heavy luxury saloon. The caliper is hollow-bodied as standard, light and stiff to resist flex, with an optional Hollow Racing upgrade for circuit sessions 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. Pad selection spans Street, Sport, and Racing, so the system can move from motorway use to circuit sessions without a pad swap, and caliper colour runs from the included painted finishes (Red, Yellow, Gold, Black, Anodized Black) at no extra cost, through a Custom Color in any Pantone for 150 pounds, to premium polished-forged and candy options.

Fitment for the Mercedes Benz S CLASS W221 S 350 (2005-2013)

This front brake kit is confirmed for the Mercedes Benz S CLASS W221 S 350, covering the full production window from 2005 to 2013 and supplied as a left-and-right front pair. The SKU covers the 3.5-litre variants built across that span, both pre- and post-facelift. Confirm your exact build year and specification when selecting your pad compound.

What buyers also search for

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Choose your pad compound and caliper finish from the options above to configure the front kit for your W221 S350.