Help quiet front brake noise with the Bosch QuietCast Disc Brake Pad Set BC946 — a BOSCH brake pad set built as a direct-fit front replacement for the listed applications. It fits many vehicles, among them the 2004-2010 BMW X3, 2006-2008 BMW Z4 and 2001-2006 BMW 330Ci. Built on Bosch's OE braking heritage, this QuietCast set services the front axle; replace both sides together as a matched set for even, balanced braking.
A protective transfer layer is intended to extend pad and rotor life, and synthetic lubricant is included in all applications to help reduce resistance on sliding contact points. See the Buyer's Guide tab for the full engine-level fitment list.
This part cross-references / interchanges with the following part numbers:
Is this the right brake pad for a 2004-2010 BMW X3?
Yes — it's a direct-fit front brake pad set for the 2004-2010 BMW X3. Check the Buyer's Guide tab to confirm the full list for your vehicle.
Is this a front or rear brake pad set?
Front. This QuietCast set is cataloged for the front axle of the listed BMW applications.
What affects brake pad replacement cost?
This listing is for the front pad set itself. Your total replacement cost depends on labor rates and whether rotors, hardware, or other brake parts also need to be replaced.
Are these BOSCH quietcast ceramic brake pads?
They're from the Bosch QuietCast line, built with a patented copper-free ceramic and semi-metallic friction formula that is compliant with 2025 Copper Free legislation.
What are signs my brake pads may need replacing?
Squealing, grinding, longer stopping distances, or a pulsing pedal can indicate worn pads. Diagnose the cause first, since rotors and other brake components can produce similar symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
