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Brake Disc

Product number: 4.63991
ART: 4.63991 / EAN: 04057795316584

Price incl. vat.
AED 472,50

Out of stock, Backorder possible
Delivery date: 12-02-2026

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Brake Disc
Manufacturer Productnumber
MERCEDES-BENZ 356 421 0312 , 3564210312
MERCEDES-BENZ 356 421 1012 , 3564211012
MERCEDES-BENZ 356 421 1212 , 3564211212
MERCEDES-BENZ A356 421 0312 , A3564210312
MERCEDES-BENZ A356 421 1012 , A3564211012
MERCEDES-BENZ A356 421 1212 , A3564211212
MERITOR MBR5015
Usage numbers
Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
 MAN
MERCEDES-BENZ MERCEDES-BENZ

Do you have any questions about this product? Please feel free to contact us.

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DT Spare Parts

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Files

Files
db5091-assembly-instruction.pdf pdf 374.16 KB
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FAQ

A brake disc (also called a brake rotor) is a key component of the disc braking system. It rotates with the wheel and is clamped by the brake pads through the brake caliper when the brake pedal is pressed. The resulting friction converts kinetic energy into heat, slowing down or stopping the vehicle efficiently. High-quality discs ensure stable braking, heat dissipation, and long-lasting performance.

There are several types, each designed for specific driving conditions:

  • Solid Discs: Standard design, used in front or rear of smaller vehicles.

  • Vented Discs: Feature internal cooling channels for better heat dissipation.

  • Drilled or Slotted Discs: Provide improved cooling, cleaning, and wet-weather performance (ideal for performance or heavy-duty use).
    Always match the type to your vehicle’s original specifications.

Common symptoms include:

  • Vibration or pulsation in the brake pedal or steering wheel when braking

  • Squealing or grinding noise

  • Blue discoloration or scoring marks on the disc surface

  • Reduced braking efficiency or longer stopping distance

  • Uneven pad wear or grooved surface
    If any signs appear, have your discs inspected and measured — replacement is usually required if disc thickness is below the minimum limit.

To ensure compatibility, confirm the following details:

  • OEM or Part Number

  • Vehicle make, model, year, and engine size

  • Axle position (front or rear)

  • Disc dimensions (diameter, thickness, height, center bore)

  • Type: solid, vented, drilled, or slotted
    If you’re unsure, share your VIN or chassis number with us — our team will verify the correct fitment.

Yes, it’s highly recommended to replace brake pads along with brake discs. Old pads can cause uneven wear or reduced friction on new discs. Replacing both ensures optimal braking performance, smooth bedding-in, and longer component lifespan. Always perform proper run-in (bedding) procedure after installation.

Yes. Our brake discs are manufactured to OEM standards using high-carbon or cast-iron materials for maximum strength and thermal stability. Each disc undergoes balancing, hardness, and runout testing to ensure vibration-free and consistent braking. All discs come with a manufacturer’s warranty and are suitable for professional workshop installation.


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