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Discussion Starter · #1 ·
Time to replace brake rotors and pads / wear sensors.

So I've decided that OEM rotors are best, seems other rotors just aren't worth it (based on reviews on this forum).

Brake pads on the other hand are a touchy subject. OEMs have so much dust and thus I'd rather not get them. However from what I gather from reviews, it seems that other pads have issues with "initial grip".

I'd rather not sacrifice safety for less dust.

Can anyone chime in here?
 

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I just ordered a set of the Centric premium rotors (I did research and they have good reviews) and stoptech pads. Can't go wrong with OEM rotors though. From what I've heard the stoptech pads have great cold bite but dust slightly less than OEM.

When you search you'll also see recomendations for Performance Friction Z-rated pads and a few others.

Just be sure you dont go getting a race pad, they will have bad initial bite and I would not recommend for street use since they'll rarely if ever get up to proper temps for them to grip well.
 

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I did brakes about a month ago. I went with Brembo blanks for rotors which are pretty much OEM. For pads I went with Pagid which are more or less the same as the OEM Textar (semi metallic). Very happy with my choice so far!

I was actually going to get the Stoptech pads but when I was ordering, the rears were out of stock and I did not want to wait any longer. I did do a lot of research and the Stoptech pads, as mentioned above, are good stuff. If you want to go ceramic, go for the Akebono pads. But remember ceramic pads will have noticeably less initial bite compared to the semi metallics. So it's a trade off of good braking performance but having to clean your rims once a week or reduced performance and having clean rims. I think it's a no brainer. :idea:

As far as rotors go, Zimmerman or Brembo blanks are your best bet. Stay away from drilled rotors as they are just blanks drilled by the seller which creates stress fractures and makes the rotor weaker. If you want "drilled" rotors they have to be cast with the holes and they are going to be expensive. Plus, it's not worth it unless you are tracking the car hard. For street use all they do is reduce contact area and eat up your pads faster.

Good luck! :thumbup:
 

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Good choice to stick with oem rotors

Go to Turner Motorsports site to learn that many of the staff drive BMW's personally in addition to racing and winning races.
The staff all reccommend and use Axxis Metal Masters that they sell for reasonable money.
I've had them for 45K miles now. They wear well, don't make noise, have great initial bite, and leave my M68's much cleaner than oem pads.
 

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First, you know that you can usually use rotors for two sets of pads, right? Measure their thickness with a $10 micrometer...if above the minimum, you probably don't need rotors...

Also, my front pads went 60K miles and my rear pads were only halfway worn. Just saying. I'd be surprised if you needed pads and rotors in all four corners...but, of course, you might. Put your money where you need it.

Pads? Stopping is highly overrated. You have to set priorities. Who cares if you kill a random beagle or two in the life of a pad...what matters is how often you have to rub your wheels to get the dust off. These guys that recommend pads for stopping seem like big Herbs to me...know what I mean?

Textars/pagid/jurid all use OE compound. Textars are the ones you'll get from dealer...probably slight difference in the rest of the pad between the three.
 

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EBC green stuff pads and, if you want to upgrade rotors that bad, ATE grooved discs.
not too expensive and works fukin amazingly in ALL conditions temperatures whatever. consistent feel, no dust, no noise, always the same consistent feel.
 

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Although I've learned to mostly trust Snik, I'll just say this.

If you don't like headaches, go OE, and your car will stop like a BMW is designed to stop.

Also, jpr's thread that's been bumped recently here is great. Read it thoroughly. One interesting point he noted is that if you reuse rotors that are above minimum thickness with a different pad, you might get a faster rate of wear where the rotor might become too thin before the pad sensor goes off and lose braking power; i.e., may create an unsafe condition.

Something has to give to stop. It's either the pads, the rotors, or both. Change one wily nily, and you'll affect something else--stopping distance, wear on either pad or rotor, or both.

If you don't like headaches, go OE, and you'll be as safe as the BMW engineers engineered.

(I am not arguing with Snik, for the record; just presenting my views...which he probably knew I would! lol)
 

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the recommendation ive made performs better than OEM on ALL counts. i will swear to that.
The pads...
bites better
more resistant to fade
works in all temps
lasts longer
no dust
make no noise

The ate rotors are zinc plated, things never rust, unlike my OEM rear rotors
dont make noise
dont warp
dont vibrate

trust me. its OEM 10x better.
Ate is also a OEM supplier for a LOT of BMW components, and EBC has been doing brakes for decades.
 

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I'm about to have to do a brake job as well, and I've been doing some research.

I'm just going to get my rotors turned, as long as I can. Like it was said above, there is no reason to just replace them, unless they are warped too bad or have been turned too many times before.

For pads, I'm going to go with the PFC Z-rated pads. I was between those and the StopTech. Either seemed like a good choice. Since I've had the car for 50k miles and never changed the brakes, I'm going to go ahead and do the front and rear brakes, just because it will make me feel better.

Also replace all 4 sensors and flush the brake fluid. I also need to adjust the parking brake.
 

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You should read a little more Drewfus. You don't need to turn your rotors unless there's a reason to, and honestly, if there's a reason to, you should probably just get new rotors. It's not worth it to toss money away on turning.

At 50K miles, if you needed turning, then in all likelihood you'll reduce the rotors to below minimum thickness. Maybe not, but certainly it'll shave miles off of them.

You also only have 2 sensors, not four.

Rotors don't really warp.

Finally, read jpr's thread on brakes--good stuff from a great Fanatic. Take his word to the bank!
 

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Personally I just did my brakes, and ordered everything off pelican. Went with OE pads (which are Textar I believe) and Zimmerman z-coat rotors.. They are coated and do not rust, at least they never did for my friend who had em for years. So far I am very satisfied and it was a decent price.
 

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Well now I am even more unsure. Everyone has different opinions!

so far thinking performance friction z rated and EBC Green Stuff
I think it's a simple interpretation; everyone's solution is correct. You could follow what anyone here has done and end up with a solid set of brakes.
Pick one and do it.
 

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Well now I am even more unsure. Everyone has different opinions!

so far thinking performance friction z rated and EBC Green Stuff
My brake components are all OEM except front pads where I have the Z-rated! They bite, they do dust and they are a bit pricey! Don't get me wrong, I like them a lot especially now that I drive 70+ miles daily. I hated them when my commute was short, < 12miles and they tended to be noisy then too. I know what the manufacturer says but trust me these are a track pad first then street not the other way round. But they last, had them for over 60k miles.

Rotors, you can't go wrong with Zimmermans'.
 

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OP:

There are many choices of pads/rotors out there. The sky's the limit. Your car will work perfectly fine with aftermarket quality rotors and OEM pads.

You are to purchase the following without questioning:

www.bmaparts.com

Front Brembo blank (plain) rotors: $38.70 for pair
Part Number:BMW018591
Manufacturer:Brembo
Weight:13.240lbs.

Front Textar (OEM) pad set: $40.74
Part Number:BMW080530
Manufacturer:Textar
Weight:3.500lbs

Rear Brembo blank rotor set: $46.86
Part Number:BMW062934
Manufacturer:Brembo
Weight:11.530lbs.

Rear Textar (OEM) pad set: $47.16
Part Number:BMW066185
Manufacturer:Textar
Weight:2.300lbs.

Grand total: $173.46 (and yes, these are for your 2000 323i.)

That is the highest quality, lowest-priced set you can get for your car and is what I am personally running.
 

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Stay away from drilled rotors as they are just blanks drilled by the seller which creates stress fractures and makes the rotor weaker. If you want "drilled" rotors they have to be cast with the holes and they are going to be expensive. Plus, it's not worth it unless you are tracking the car hard. For street use all they do is reduce contact area and eat up your pads faster.

Good luck! :thumbup:
Nitpicking, but they don't create stress fractures, they create stress concentrations, which can eventually create fractures through fatigue.

Cast holes have the same stress concentrations, but better material capability due to being cast.

I suppose its just semantics, but as a mechanical structural engineer, I couldn't help but correct. :thumbsup:
 

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the recommendation ive made performs better than OEM on ALL counts. i will swear to that.
The pads...
bites better
more resistant to fade
works in all temps
lasts longer
no dust
make no noise

The ate rotors are zinc plated, things never rust, unlike my OEM rear rotors
dont make noise
dont warp
dont vibrate

trust me. its OEM 10x better.
Ate is also a OEM supplier for a LOT of BMW components, and EBC has been doing brakes for decades.
You know that feeling you get when cruising on the highway in wet / rainy conditions and you start to tap the brakes for an off ramp... and NOTHING happens for the first second or two?!? :yikes: Does this combination of pad and rotor eliminate that?

Also, what series Greenstuff pad did you go with?

The 2 (well, 3 really) things I want to change about my brakes when I replace rotors and pads:

1.) The WBPF (Wet Brakes Pucker Factor)... OEM brakes I would rate at an 8.5, would like to see that reduced to a 4 or below.
2.) The absurd amount of rust on my rotors whenever it rains.
3.) Brake noise in general... I think that my rotors are rusting more since they are getting worn down and starting to get minor grooves, hence causing more noise than normal. I'd assume new rotors and pads would essentially get rid of brake noise under normal conditions.
 

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You know that feeling you get when cruising on the highway in wet / rainy conditions and you start to tap the brakes for an off ramp... and NOTHING happens for the first second or two?!? :yikes: Does this combination of pad and rotor eliminate that?

Also, what series Greenstuff pad did you go with?

The 2 (well, 3 really) things I want to change about my brakes when I replace rotors and pads:

1.) The WBPF (Wet Brakes Pucker Factor)... OEM brakes I would rate at an 8.5, would like to see that reduced to a 4 or below.
2.) The absurd amount of rust on my rotors whenever it rains.
3.) Brake noise in general... I think that my rotors are rusting more since they are getting worn down and starting to get minor grooves, hence causing more noise than normal. I'd assume new rotors and pads would essentially get rid of brake noise under normal conditions.
No combination of pad and rotor will eliminate that. It's simply physics.

E9X models incorporate brake drying where the pads and rotors are momentarily grazed against one another periodically in rain to eliminate this delay.
 

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OP:

There are many choices of pads/rotors out there. The sky's the limit. Your car will work perfectly fine with aftermarket quality rotors and OEM pads.

You are to purchase the following without questioning:

www.bmaparts.com

Front Brembo blank (plain) rotors: $38.70 for pair
Part Number:BMW018591
Manufacturer:Brembo
Weight:13.240lbs.

Front Textar (OEM) pad set: $40.74
Part Number:BMW080530
Manufacturer:Textar
Weight:3.500lbs

Rear Brembo blank rotor set: $46.86
Part Number:BMW062934
Manufacturer:Brembo
Weight:11.530lbs.

Rear Textar (OEM) pad set: $47.16
Part Number:BMW066185
Manufacturer:Textar
Weight:2.300lbs.

Grand total: $173.46 (and yes, these are for your 2000 323i.)

That is the highest quality, lowest-priced set you can get for your car and is what I am personally running.
Mango, is that the price for 2 rotators or 1? I can't see the Brembo brand for $46.86 for a set of rotators.
 
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