
Bosch QuietCast BC946 Ceramic Front Brake Pad Set for BMW E46 Z4 E85
by Bosch
Key Features
- Fits E46 330i, 330Ci, 330xi and E85 Z4 front axle
- Ceramic compound - noticeably less wheel dust than stock semi-metallic
- Includes hardware kit - replace corroded E46 retaining clips while you are in there
- QuietCast multi-layer shim reduces pad noise on cold morning stops
- OE-style fitment, no caliper modifications needed
- Not suited for track use - compound goes off quickly above street temps
Product Details
- Brand
- Bosch
- Category
- Brake Pads
- ASIN
- B013KCGX32
Check if it fits your BMW
Bosch QuietCast BC946 Ceramic Front Brake Pad Set for BMW E46 Z4 E85 — Overview
The Bosch QuietCast BC946 is a ceramic front brake pad designed as a direct OE-style replacement for the E46 330i, 330Ci, and 330xi, plus the E85 Z4. Ceramic compound means lower brake dust than the semi-metallic pads BMW fitted from the factory, and the QuietCast shim setup does a solid job of keeping noise down on daily driven cars. If your E46 is a street car that sees occasional spirited driving but no track days, these make sense - they bed in easily and work well across the full range of normal street temperatures.
For track use or aggressive street driving, I'd push you toward a performance compound like Hawk HPS or Pagid RS. The BC946 is not that pad - it is built for comfort, low dust, and quiet operation, and it delivers on all three. Fitment is straightforward on the E46 platform; just confirm your front rotor diameter matches the 330-spec setup, since the base 325 cars used a smaller rotor and a different pad. Hardware kit is included, which matters because the E46 pad retaining hardware corrodes and is worth replacing whenever you pull the calipers.
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