
XYZ Racing Hollow Rear Brake Kit — Mercedes Benz E CLASS W212 E 350 (2009-2016)
SKU: XYZ-BRK-BKR-ME-56-D-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 E CLASS W212 E 350 (2009-2016)
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Caliper render for this kit:

The W212 E 350 carries the better part of 1.7 tonnes on a comfort-first brief, and its factory rear brakes were specified to match: untroubled on a long motorway haul, far less happy when a heavy executive saloon is scrubbed off speed again and again. The XYZ Racing Hollow Rear Brake Kit for the Mercedes Benz E Class W212 E 350 (2009-2016) goes straight at that limitation, adding thermal capacity and consistent bite at the axle that does the quieter work of keeping this car settled.
On a front-engined saloon of this mass, the rear axle earns its keep stabilising the car as weight pitches forward under braking. This rear big brake kit pairs lightweight hollow-vane discs with a fixed caliper and a choice of pad compound, so the back end keeps doing its job whether the E 350 is loaded for a continental run or being pressed along a give-and-take B-road.
What this big brake kit does for your 2009-2016 Mercedes Benz E Class W212 E 350
The hollow-vane disc construction trims rotational and unsprung mass at each rear corner, which sharpens how quickly the brakes respond and helps the W212’s softly sprung rear stay composed mid-stop. A fixed-caliper design clamps more evenly than the original sliding setup, so pedal feel stays firm as temperatures climb on a long descent or a heavy braking zone. The three pad compounds let you match the car to its use: Street for everyday driving, Sport for harder fast-road work and the odd track day, and Racing for sustained high-heat sessions. For a saloon this heavy, that extra fade resistance is the difference between a pedal that stays where you put it and one that goes long after repeated stops.
About the Hollow rear big brake kit
XYZ Racing’s Hollow brake kit takes its name from its vented, two-piece floating disc design, which removes material through the vane structure to cut weight and open up surface area for cooling. The discs run inside a fixed caliper that replaces the W212’s standard floating arrangement, giving more even pad contact and a more progressive bite. The caliper is hollow-bodied as standard, with an optional Hollow Racing upgrade for serious track use, rated to 1000C and warranted for two years. Pad compound is specified when you order: Street, Sport or Racing, so the kit can be set up for a daily-driven E 350 or one that sees regular hard use. Caliper finish is offered in the included Red, Yellow, Gold, Black or Anodized Black at no extra cost, with a Custom Color in any Pantone shade and premium polished-forged or candy finishes to suit the car. Supplied as a matched pair, everything is sized to sit behind the factory-fit wheel package, so the upgrade is about braking performance rather than show. It is a bolt-on path to better heat management at the rear axle without re-engineering the rest of the car.
Fitment for the Mercedes Benz E Class W212 E 350 (2009-2016)
This kit is built for the W212-generation E Class in E 350 specification, covering the 2009 to 2016 production run. It fits the rear axle, is supplied as a pair of rear calipers and discs, and comes with your chosen pad compound, disc style and caliper colour. Confirm your exact build year and wheel size before ordering.
What buyers also search for
- Mercedes W212 E 350 rear brake upgrade for a heavy executive saloon
- E Class W212 big brake kit with fixed calipers and hollow-vane discs
- W212 E 350 rear brake fade fix for long descents and sustained driving
- Mercedes E 350 brake pad compound options for road or track use
- W212 caliper colour choices including included finishes and custom Pantone
Pick your disc style, pad compound and caliper colour above and configure your W212 E 350 rear kit when you order.
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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