The Build: Vehicle and Parts
| Item | STOPFLEX Spec |
|---|---|
| Vehicle | Mercedes-Benz V-Class (W447), sold as Metris in North America |
| Front calipers | STOPFLEX ES6 6-piston fixed calipers |
| Rear calipers | STOPFLEX EP4 4-piston fixed calipers, factory EPB retained |
| Rotors | STOPFLEX carbon ceramic, 355mm front and rear |
| Pads | STOPFLEX heavy-duty ceramic compound |
| Target wheel size | 19-inch wheels (confirm clearance per wheel design) |
| Axle scope | Full front and rear conversion from floating to fixed calipers |
Read this before you order
This is a full big brake conversion, front and rear, replacing the factory floating calipers with fixed multi-piston units. The key detail on this platform: the rear EP4 caliper is set up to keep your factory electronic parking brake working. If a rear conversion ignores EPB, you've got a problem. This one doesn't.
What the Upgrade Actually Changes
| STOPFLEX feature | Why it matters on a V-Class / Metris | What you notice |
|---|---|---|
| Carbon ceramic rotors, 355mm | A loaded van shoves a lot of energy into the brakes on long descents and fast motorway runs. These rotors hold around 0.3μ surface friction even at 900°C. | Pedal stays firm and predictable through repeated stops instead of going long when things heat up. |
| ES6 6-piston front, EP4 4-piston rear | Fixed multi-piston calipers clamp more evenly than the factory floating units, which matters when you're hauling passengers or conversion weight. | More bite and a more linear feel under hard or sustained braking. |
| Roughly half the rotor weight | Steel rotors this size are heavy, and that weight is unsprung, right at the wheel. | Suspension settles more cleanly over broken pavement; the van feels a little less heavy-footed. |
| Ceramic pads, no-rust rotors | A premium van lives or dies on how clean it looks, and it sits outside in the rain. | Very low brake dust on the wheels, and rotor faces that don't surface-rust between washes. |
| Long-fiber CCB construction | High-mileage passenger duty means you don't want to be back in the shop for brakes constantly. | Street life can reach roughly 250,000–300,000 km when the van never sees a track. |
What gets better
- Bigger heat margin on long grades and fully loaded runs.
- Steadier pedal feel through repeated braking.
- Less unsprung weight at each corner.
- Much cleaner wheels from low-dust ceramic pads.
- Rotors that don't rust after rain.
- Long street service life for high-mileage vans.
What to confirm first
- Wheel clearance against your exact 19-inch design, spoke shape, and offset.
- Any spacers currently fitted, since they change clearance.
- That your van is a W447 / Metris matching this caliper and rotor spec.
- Your typical duty cycle: passenger load, luggage, conversion weight, route profile.
- That the factory EPB function is the version this rear setup supports.
If you're not sure your van matches the spec shown here, send us your details and we'll confirm Mercedes-Benz V-Class (W447) fitment before you order through our Mercedes-Benz CCB collection.
Build Gallery
FAQ
Is a carbon ceramic brake upgrade worth it on a V-Class or Metris?
For a heavy passenger van, the real win is heat. A loaded V-Class or Metris dumps far more energy into the brakes than a light car, so a carbon ceramic setup gives you a bigger heat margin, steadier pedal feel through repeated stops, and less brake-related maintenance over high street mileage.
Does the rear caliper keep the electronic parking brake?
Yes. The STOPFLEX EP4 rear caliper is configured to retain the factory electronic parking brake function while moving the rear axle from a floating caliper to a fixed 4-piston design. Many rear big brake conversions skip this, which is why it matters on this platform.
Will the 355mm setup clear 19-inch wheels?
This 355mm package is built to fit 19-inch wheels. Final clearance still depends on your exact wheel design, spoke shape, offset, and any spacers, so confirm those details before you order.
Does lighter brake hardware change how the van rides?
It can. STOPFLEX carbon ceramic rotors weigh about half what same-size steel rotors do, which cuts unsprung mass at each corner. On a heavy van that can help the suspension settle more cleanly over rough pavement.
How long do STOPFLEX carbon ceramic rotors last on the street?
In normal street use, and not on track, STOPFLEX carbon ceramic rotors can reach roughly 250,000 to 300,000 km. Real-world life depends on how you drive, how much you load the van, your pad choice, and overall maintenance.
