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      04-07-2016, 06:17 PM   #155
alexkyriak
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I had the same issue. Took it back, they bled it, they confirmed that it was still soft and spongey. They then bled it again, then checked the bearings that they replaced in doing the work, turned out the replacement bearings were not right, replaced them, and the brake feel is fixed. Brake travel is a little longer, but allows great progressive feel on braking. Braking power is very good indeed.
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      04-12-2016, 10:28 PM   #156
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Quote:
Originally Posted by microceratops
Hi all, just installed my mperf brake kit yesterday, dealer claims to have bled it 3 times, but it's still soft and spongy.
Is this one of those things that get better with time? Cause I don't like having to drive the pedal in each time I wanna kit the brakes moderately.
I did the install myself and had the same issue I bleed it 15 times myself. I had the dealer bleed it with coding to activate the actuator and get all the air out the system. After this the brake feel how it should
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      04-16-2016, 09:39 PM   #157
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Quote:
Originally Posted by nhinnhuckyduc
Quote:
Originally Posted by microceratops
Hi all, just installed my mperf brake kit yesterday, dealer claims to have bled it 3 times, but it's still soft and spongy.
Is this one of those things that get better with time? Cause I don't like having to drive the pedal in each time I wanna kit the brakes moderately.
I did the install myself and had the same issue I bleed it 15 times myself. I had the dealer bleed it with coding to activate the actuator and get all the air out the system. After this the brake feel how it should
If you bleed your brakes, the DME picks up that it was bled and will release a hissing noise and click a few times once you restart the car and pump the brakes a few times.

Just did them last weekend on the M performance set I've been running at lime rock for a few years and no issues or sponginess.
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      04-20-2016, 10:18 AM   #158
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just installed a set of M-perf brakes onto my 335i.

brake system was bled twice. coding was done after installation. rotors and pads bedded.

still getting mushy brake feel and increased travel of the brake pedal as compared to stock. oh well..

questions:
a) when driving, and coming to a complete stop, i'm still able to depress the brake pedal further, in a slow, squishy manner, all the way to the floor. do you guys experience the same? or do i need to get the system re-bled again?

b) those of you who installed the m perf brake kit, did you guys put in stainless steel brake lines as well?
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      04-20-2016, 01:40 PM   #159
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Quote:
Originally Posted by Roasty View Post
just installed a set of M-perf brakes onto my 335i.

brake system was bled twice. coding was done after installation. rotors and pads bedded.

still getting mushy brake feel and increased travel of the brake pedal as compared to stock. oh well..

questions:
a) when driving, and coming to a complete stop, i'm still able to depress the brake pedal further, in a slow, squishy manner, all the way to the floor. do you guys experience the same? or do i need to get the system re-bled again?

b) those of you who installed the m perf brake kit, did you guys put in stainless steel brake lines as well?

Sorry to hear of your troubles! Very frustrating I'm sure.

To your questions,

a) Absolutely not right. The pedal should react with just a slight touch, and progressively bites as you press down. Even with M Performance pads, it should not possible to compress to the floor. If you can, 100% there is air in the line. As a side note, I DID have significant pedal travel for the first five days I drove the car. I re-bled the following weekend and it took care of any pedal travel. Felt exactly like old M Sport Brakes.

b) I did install stainless steel brake lines - mostly for looks, longevity, and the occasional track day. I would suspect that in everyday street use for such a newer car, the SS lines wouldn't be suspect in your issue - however I would check to see if they are leaking - which is not that uncommon if they aren't installed properly.
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      04-20-2016, 08:58 PM   #160
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Quote:
Originally Posted by daberlin View Post
Sorry to hear of your troubles! Very frustrating I'm sure.

To your questions,

a) Absolutely not right. The pedal should react with just a slight touch, and progressively bites as you press down. Even with M Performance pads, it should not possible to compress to the floor. If you can, 100% there is air in the line. As a side note, I DID have significant pedal travel for the first five days I drove the car. I re-bled the following weekend and it took care of any pedal travel. Felt exactly like old M Sport Brakes.

b) I did install stainless steel brake lines - mostly for looks, longevity, and the occasional track day. I would suspect that in everyday street use for such a newer car, the SS lines wouldn't be suspect in your issue - however I would check to see if they are leaking - which is not that uncommon if they aren't installed properly.
Thank you for chiming in!

Will be headed back to the workshop tomorrow night to attempt a re-bleed.

As for the SS brake lines, i didn't get any installed yet. What lines are you running? Goodridge? I had them on my previous e46 and evo X and they worked fine. will probably get a set of these for my F30 as well.
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      04-20-2016, 10:37 PM   #161
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Quote:
Originally Posted by Roasty View Post
Thank you for chiming in!

Will be headed back to the workshop tomorrow night to attempt a re-bleed.

As for the SS brake lines, i didn't get any installed yet. What lines are you running? Goodridge? I had them on my previous e46 and evo X and they worked fine. will probably get a set of these for my F30 as well.
Bavarian Auto sells 'em for a nice price. I'd go out tomorrow (today) and get some at a local shop before you get the lines bled. You'll need to rebleed after you swap to SS lines, so might as well combine tasks.
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      04-22-2016, 10:58 AM   #162
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just to update...

went back to the workshop. re-bled the system and they found an air bubble.

installed stainless steel brake hoses and re-bled again.

brakes feel great now, similar to the stock brake feel. the brake modulation feels perfect. no more mushy/squishy feeling when depressing the brake pedal.

braking/stopping power definitely feels better than stock.

my recommendations:
- change up to the m-perf bbk if you want to keep the OEM look. the front rotors fill up my 19" wheels nicely. the rears still seem a little small-ish.
- make sure you get the brake system bleeding done right
- code it (although i've read, and my mech says the same, that the coding part is supposedly only necessary when DSC kicks in)
- i'd say ss brake hoses are a +/- i know there is some debate as to whether they are that much better over the stock hoses but i did them anyway as i figured, why not.
- enjoy!
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      04-22-2016, 04:58 PM   #163
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Quote:
Originally Posted by Roasty View Post
just to update...

went back to the workshop. re-bled the system and they found an air bubble.

installed stainless steel brake hoses and re-bled again.

brakes feel great now, similar to the stock brake feel. the brake modulation feels perfect. no more mushy/squishy feeling when depressing the brake pedal.

braking/stopping power definitely feels better than stock.

my recommendations:
- change up to the m-perf bbk if you want to keep the OEM look. the front rotors fill up my 19" wheels nicely. the rears still seem a little small-ish.
- make sure you get the brake system bleeding done right
- code it (although i've read, and my mech says the same, that the coding part is supposedly only necessary when DSC kicks in)
- i'd say ss brake hoses are a +/- i know there is some debate as to whether they are that much better over the stock hoses but i did them anyway as i figured, why not.
- enjoy!
Your experience matches mine, so nice job. I've used both pressure (motive) and air compressor (mityvac) bleeders on many cars over the years, including the current F30 and 997.2, and never had an issue with air in the lines - as long as they were used properly (learning curve on the mityvac was longer than motive).
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      05-04-2016, 11:24 AM   #164
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Installed - Yellow Brakes / Silver body


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      05-04-2016, 02:56 PM   #165
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Quote:
Originally Posted by Jason
Attachment 689448One of the more exciting items from the full BMW M Performance Parts catalog for the F30 3 series are the M Performance Brakes. These are Brembo 4-piston aluminum fixed calipers on the front axle and 2-piston aluminum fixed calipers on the rear axle. They come in red, yellow, or orange and feature the M logo on the calipers.

The internally-vented lightweight sports rotors measure 370 x 30 mm (diameter x thickness) on the front axle and 345 x 24 mm on the rear axle. Unlike the M Sport brake discs, the M Performance brake discs are cross drilled for better grip and grooved to reduce water film build up. The BMW M Performance sports brake system is only approved in combination with at least 18" aluminum wheels and unfortunately do not fit the E9X generation cars (including M3).

The M Performance BBK just became available to the North American market and F30POST member nexusonemeover and Turner Motorsports have fitted a pair on their 328i and 335i, respectively. Here are some photos of the rotors and calipers, installed and uninstalled. Initial impressions are good - providing both aesthetic improvements and some performance gains. They chose the yellow versions.

The BMW M Performance Brakes for the F30 retail at $2,300, but we've already seen them being sold for sub-$2000.


Looks great. Congratz! Im curious about if mperformance brake kit increase the offset due to aluminum head. It looks like little thicker then stock. Thank you
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      06-13-2016, 03:30 PM   #166
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How or where do you guys go to Code your breaks. Are there non BMW shops that can do it or could I buy a tool for it?

I want the break kit as its dirt cheap right now but, not looking to spending $1000 plus to get them installed at the BMW dealer.
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      06-30-2016, 04:15 AM   #167
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Quote:
Originally Posted by lunchbox View Post
How or where do you guys go to Code your breaks. Are there non BMW shops that can do it or could I buy a tool for it?

I want the break kit as its dirt cheap right now but, not looking to spending $1000 plus to get them installed at the BMW dealer.
You don't have to get them installed at the dealer. Any tuner shop that specializes in BMW can most likely code it for you. I had a local BMW forum member code my brakes for me.
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      09-02-2016, 12:36 PM   #168
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Hi just wondering if the M Performance rotors rust up like stock rotors?

I don't see that these come with any type of coating or painted ?
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      09-02-2016, 02:56 PM   #169
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Not noticeable for me after 5 months, the hat might have a little but nothing out of the ordinary, and the disks are perfectly clean
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      09-02-2016, 05:40 PM   #170
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Yea I am wondering before install at dealers if possible to just paint that portion so doesn't show any rust. Since new kit better to do it before they get installed on car.
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      09-02-2016, 11:16 PM   #171
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What was total install time ? I figures 5+ Hours and I am going take it to Non dealer for install as price is way lower.
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      09-06-2016, 12:04 AM   #172
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Quote:
Originally Posted by msdtra
What was total install time ? I figures 5+ Hours and I am going take it to Non dealer for install as price is way lower.
I've been quoted 7hrs by one dealer, 5 hrs by another. Independent shops quoted it between 5-8 hrs depending on whether rear hubs need to be taken apart for dust shield install.
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      09-07-2016, 01:54 AM   #173
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Thanks I got similar types of quotes and sticking with BMW Service Center and Not dealer as price is much better and reliable place that I have dealt with before.

Thanks
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      09-07-2016, 07:41 PM   #174
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Quote:
Originally Posted by msdtra View Post
Hi just wondering if the M Performance rotors rust up like stock rotors?

I don't see that these come with any type of coating or painted ?
Hat is aluminum. Friction surface will rust if driven hard and there is water anywhere near. If sitting for a while or after a wash, they will rust.
They come clean as soon as your drive it.
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      09-22-2016, 09:13 AM   #175
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Quote:
Originally Posted by msdtra View Post
Hi just wondering if the M Performance rotors rust up like stock rotors?

I don't see that these come with any type of coating or painted ?
Mine are full of rust inside the little holes in the surface of the rotors, after only two (hard) track-sessions... It's impossible to remove them
I've just replaced pads (after a wrong experiment with Pagid Yellow RSL1) with M Performance Pads and I noticed that they changed product number at the beginning of 2016: have anybody experinced these new pads?
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      09-22-2016, 09:51 AM   #176
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Hey guys,

I originally purchased the M performance brake kit for my 328i but now have a 335i. I was told by the service adviser that the only thing I need to switch out is the rear rotors to a bigger size. Is that all I need to switch? I was reading somewhere that I may need to change the dust shield as well.
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