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    Product number: 4.63991 | EAN: 04057795316584
    Properties
    Alles weergeven
    Thread size m14 x 1,5
    Height (mm) 135
    Outer diameter (mm) 438
    Brake disc type internally vented
    Brake disc thickness (mm) 45
    Num. of holes 10
    Bolt hole circle Ø (mm) 235
    Min. thickness (mm) 41
    Centering diameter (mm) 195
    Guarantee 2 years guarantee
    Net weight (g) 32500
    Fitting position rear axle

    Brake Disc

    AED 472,50 Price incl. vat. 5%
    Shipping method Delivery time Stock
    Shipping ~03-11-2025 1998

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    Applicability / OE numbers
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     MAN
    MERCEDES-BENZ MERCEDES-BENZ
    Manufacturer Productnumber
    MERCEDES-BENZ 356 421 0312 , 3564210312
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    MERCEDES-BENZ 356 421 1212 , 3564211212
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    MERCEDES-BENZ A356 421 1012 , A3564211012
    MERCEDES-BENZ A356 421 1212 , A3564211212
    MERITOR MBR5015
    Usage numbers

    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.


    Files
    db5091-assembly-instruction.pdf pdf 374.16 KB

    Brake Disc