11-13-2019, 08:54 PM | #1 |
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Hi all,
Recently purchased a 2013' bmw 335 x-drive sedan m-sport with 54k miles. Just hit 60k miles today and now I'm getting a strong squeaking when I come to a stop. So it's time for some new pads. The stock pads (I assume the car has stock pads on it) leave a ton of brake dust! What are the best options for some low dust pads that have similar stopping power to the oem pads and where's the best place to buy them? Thanks! |
11-13-2019, 09:44 PM | #2 | |
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Highly recommend Zimmermann rotors which are high quality German rotors better than OEM because they are zinc coated against rust. Much less expensive than BMW rotors. Change brake fluid every 2 years. Upgrade brake hoses to stainless steel brake lines like StopTech for $106/set. Much more solid brake pedal feel! See photo for F30 part numbers. You don't say which model car or brakes you have. If they are front grey or blue Brembos I have attached photo for Hawk 5.0 part numbers. Watch excellent YouTube videos from Kies Motorsports to learn a lot about your car. Kies is a great source for products too. Hope this helps! |
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11-13-2019, 10:44 PM | #3 |
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Thanks! I added the car description to my first post (2013 bmw 335 x-drive sedan m-sport package) I assumed I had the m-sport brakes since I had the m-sport trim package. However my calipers are grey. Didn't realize the m-sport brakes were blue. Which makes sense now because the stopping power of my brakes never impressed me.
In the future I may upgrade to those brake lines you suggested. I'm hoping I don't need rotors right now but if I do I'll look into those too. The hawk 5.0 pads sound good, anything with less dust would be great haha. I will look into those and probably place an order tomorrow. |
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11-14-2019, 01:31 AM | #4 | |
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11-14-2019, 03:14 AM | #6 |
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I'm no expert on lease return requirements but the Hawk 5.0 pads look identical to stock. They aren't bright pink or anything like that. And the same for the Zimmermann's unless you install a plain rotor on a car that came with some dimpled/slotted version but Zimmermann often has those rotor variations too
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11-14-2019, 03:32 AM | #7 | ||
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The M3 uses the exact same Brembo 4-piston caliper as the F30 M Sport/M Performance caliper. It's got "370/380" in raised lettering on the back of the caliper. M3 uses 380mm rotors because it has a different mounting point than the F30 which uses a 370mm rotor. So the F30 and F80 would use the exact same front Hawk 5.0 pad. I can't recall the M3 rear brakes off the top of my head. |
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11-14-2019, 04:02 AM | #8 | |
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On the used market you have to be careful because there are lower model F30's that come with blue front calipers that 340, not 370. The 340 and 370 calipers have identical pistons but the castings are stretched out on the 370's to accommodate the larger diameter rotors. See photo. You can tell which brakes an F30 335 came with from the build sheet. If you plug the last 7 digits of the VIN into mdecoder website and look at the listing, the P337A means standard grey brakes and S2NHA means M Sport brakes. My 335 came with standard brakes. For various reasons I first upgraded the rear calipers and rotors and later the front calipers and rotors. There is little difference in the two variations of front brakes. It's the rear M Sport brakes that make all the difference. They cause the car to squat more level under hard braking where the standard brakes tend to nosedive more. It is a big expense to swap calipers and rotors even with used parts. If you have standard grey 340/330 brakes you can still feel a big improvement by just upgrading to Hawk 5.0 pads and the stainless steel brake lines. The StopTech lines are only $106/set and labor isn't much if you do it at the same time as a brake fluid change which should be done every 2 years for safety anyway. Hope this helps! |
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11-14-2019, 01:25 PM | #9 |
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A few things to bear in mind :
Squeaky pads can be caused by a variety of factors, and do not necessarily indicate that they need to be replaced. Repeated light braking can cause a glaze to form on the surface of the pad/disc and can be removed by one or more hard braking runs from decent speed. If you're familiar with how to bedd your brakes, that can be an effective cure for glazing and to improve the pad/disc friction coefficient. If the pads still have plenty of compound, removing them from the calipers and coating the back of the steel backing plates with Disc Brake Quiet or (my preference) ceramic grease can be effective. Also, careful application of ceramic grease to the caliper/pads contact surfaces helps the pad to move smoothly and to contact the pad uniformity. Obviously do not get anything on the pad surfaces. In terms of braking performance I can vouch for the much improved pedal feel through fitting stainless steel braided lines and running a high performance brake fluid. There's a good range of performance pads available, if that's what you're thinking of. My personal preference is Pagid, but you wouldn't like the dust - they dust more than OEM, but they are vastly more effective and for me the trade-off is absolutely worth it.
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11-15-2019, 08:03 AM | #10 | |
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11-15-2019, 08:59 AM | #11 | ||
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11-15-2019, 09:31 AM | #12 | |
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11-15-2019, 10:30 AM | #13 |
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There isn't anything wrong with BMW OEM M Sport brake pads. Aggressive initial bite is much more preferable in daily driving conditions.
Softer pads also preserve rotor life. Brake dust is a fact of life. I got used to it. |
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10-21-2021, 04:54 PM | #16 | |
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FRONT F30 BRAKES 370mm x 30mm 340x30 330x24 312x24 Note: 370&340, and 330&312 front calipers actually take the same size brake pads. REAR F30 BRAKES 345x24 330x20 300x20 IMO Hawk 5.0 are the best street brake pads. |
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