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BMW 3-Series (E90 E92) Forum
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new rotors/pads
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05-04-2015, 09:11 AM | #1 |
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new rotors/pads
Hi all,
My rotors and pads will need to be replaced soon and I was wondering what everybody else was going with. Here is one option that I was leaning towards: http://www.jcwhitney.com/p3089496/sk...18998y2011g2j7 |
05-04-2015, 10:12 AM | #3 |
Colonel
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I highly suggest not getting drilled rotors, especially not low cost ones. You definitely don't need them, and they will just end up cracking like all cheap drilled rotors do
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05-04-2015, 10:38 AM | #5 | |
Jumping Jack Flash
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Drives: 2021 X3 M40i
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What gives?
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2021 X3 M40i: M Sport Differential, Adaptive M Suspension.
Previous BMWs: 1971 BMW 2002, 1973 BMW R75/5, and 2011 BMW 335d Previous Other Vehicles: '67 Cougar, '70 911e, '86 Jetta Diesel, '05 and '12 Foresters, et al. |
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05-04-2015, 10:38 AM | #6 | ||
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05-04-2015, 11:17 AM | #7 | |
Colonel
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05-04-2015, 11:43 AM | #8 | |
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05-04-2015, 12:52 PM | #9 | |
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05-04-2015, 07:02 PM | #10 |
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These guys have good prices
http://www.partsgeek.com/catalog/201...ake_rotor.html http://www.partsgeek.com/catalog/201...e_pad_set.html |
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05-04-2015, 08:24 PM | #11 |
Jumping Jack Flash
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Drives: 2021 X3 M40i
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Speaking of rotors
I noticed something unusual today after my 2 hour drive into the Oregon countryside. My RR, LR, and LF rotors have a coating of rust. Understandable since it's wet here and I don't drive the car much. But the right front rotor is nice and shiny. What could cause the difference? No obvious symptoms in braking that I can recall, although I haven't had to stand on the brakes recently. Depending somewhat on the opinions I get from my forum buds, I may ask the local SA the same question.
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2021 X3 M40i: M Sport Differential, Adaptive M Suspension.
Previous BMWs: 1971 BMW 2002, 1973 BMW R75/5, and 2011 BMW 335d Previous Other Vehicles: '67 Cougar, '70 911e, '86 Jetta Diesel, '05 and '12 Foresters, et al. |
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05-05-2015, 12:31 AM | #12 | |
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PL |
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05-05-2015, 05:46 AM | #13 | |
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05-05-2015, 07:40 AM | #14 |
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Drives: Montego Blue 335d
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Stoptech cross drilled rotors w Hawks HPS with OEM calipers work for me
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Enkei Rajin 18"/Execuhitch Hitch/Koni FSD Soft Ride Bike Rack/Brava Synthetic Motor Oil(Made in Puerto Rico)/Meth(in the works)/CBU done w Andrew EGR Race Pipe (whoa! what an animal it is now) |
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05-05-2015, 07:59 AM | #15 | |
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The coating is just a surface coating, once you use the brakes a couple times it wears off the pad contact area and you will start getting rust in that area after the car sits. The coating is to keep the rest of the disc from rusting. |
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05-05-2015, 09:20 AM | #16 |
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Not to turn this into a debate, but I have coated Zimmerman rotors that are drilled and slotted with no adverse affects. My Porsche had drilled rotors from the factory.
It may pose a problem for a track day but they seem to hold up fine for street use. |
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05-05-2015, 09:40 AM | #17 |
Colonel
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Zimmerman are also high quality rotors. You can get away with drilled rotors if you buy from a company that does it right, but the cheap ones dont do it right and they quickly crack. Even the high quality ones are of course more likely to crack than blanks are, but they are a lot more likely to last for a long time than cheap ones. I have no issue with buying drilled rotors, even cheap ones, as long as the buyer goes in knowing they are doing it only for looks and that they are more likely to need to be replaced early.
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05-05-2015, 01:28 PM | #19 |
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Just an FYI to anyone who was considering using Brembo pads: I picked up a set of them to try out and they are more dusty than the factory pads if that bothers anyone. I'm also noticing slightly more noise as well.
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05-05-2015, 02:49 PM | #20 |
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I work in the auto aftermarket industry and here are my personal recommendations, also, what I use on my car.
Centric/Stoptech 125 series high carbon rotors F/R For pads, I would go one of 2 ways. More OEM: Centric Posi-Quiet semi Metallic pads: 104 series More aggressive: Stoptech street performance pads: 309 series Centric also makes a OE formula pad. In regards to cross drilled/slotted, its a waste of money. 99.9999% of you with a 335D will never get your brakes to an operating temperature near where that would become useful. Cross drilled are such a waste and so prone to cracking. Even slotted are overkill, the built in cooling on vented rotors is more than enough. But who am I, just another dude on the forum. |
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05-05-2015, 04:18 PM | #21 |
Jumping Jack Flash
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Drives: 2021 X3 M40i
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In my limited track experience, which consists of eight 15-20 minute sessions at a couple of the Summit Point circuits, our stock brakes are just fine. Toward the end of a couple of the sessions you could kinda feel the pedal getting a little mushy at the end of a straight, for lack of a better word. But I never felt they were going to not stop me. All I have is stainless steel brake lines and better fluid. However, this is just one amateur's observation.
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2021 X3 M40i: M Sport Differential, Adaptive M Suspension.
Previous BMWs: 1971 BMW 2002, 1973 BMW R75/5, and 2011 BMW 335d Previous Other Vehicles: '67 Cougar, '70 911e, '86 Jetta Diesel, '05 and '12 Foresters, et al. |
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05-06-2015, 01:44 PM | #22 |
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My new front rotors and pads just arrived. I went with the rotors from the Z4 35is and Hawk HP+ pads.
"From the Z4 35is, these rotors are an upgrade for 335 & xDrive35i models, offering a rust-free aluminum hat and weight savings of 2lbs each!" 2 piece construction I'm a little disappointed with the customer service at ECS. The shipment took extra time and when I inquired about it I never got a human response back. No big deal, but other companies that I've ordered from seem to have taken better care to render customer service. My car is out getting wheels refinished and a new powder coating. I'll report back on the brakes after I get the wrenching done in the next couple days. I'm particularly excited for the pad performance.
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2011 335d M-Sport, 123k Miles, CBU cleaning done at 100k
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