[E90Fleet]

Confirmed:
US M Sport models will not get the regular low dust, less bite US brake pads but will be fitted with Euro spec pads on the standard rotors.

US cars with the optional M Sport brakes fitted models will also receive the same Euro pads as their European counterparts.

[Maz335i]

As always man, great stuff!

Can't believe you don't work for BMW. Or are you fooling us? Lol

[sleedawg]

Now the bigger question is... which rotor? Standard rotor meaning 340mm or 370mm non-drilled. I assume 340mm.

[E90Fleet]

Originally Posted by sleedawg

Now the bigger question is... which rotor?

M Sport pack does not change the rotor with standard brakes.


Optional M Sport brakes will get a solid rotor (unlike what some initial info said, but confirmed at motor shows and latest documents).
The slotted/partially drilled rotor from the M Performance retrofit kit is available from the dealer for retrofit ( Also in standard sizes).


With M Sport brakes US and Euro 335i and Euro 328i get the same solid M Sport rotors (370x30).
With M Sport brakes US 328i get the standard US/Euro 335i rotor and standard 335i calipers, but painted blue, fitted with Euro pads (340x30).

[clarence]

Do u know wht is the weight difference between Euro standard 328i brakes & Euro 328i M-sport brakes? Also wht is the size of the rear discs on the standard Euro 328i brakes?

[jbres79]

what i am goign to have to figure out is if getting the M sport brakes pkg + M Perf drilled rotors will be less or more than not getting M sport brakes pkg and just going with the entire M Performance brake pkg.

[bmrm396]

Is this the case? Now that these msports r rolling in has anyone confirmed or felt this change?

[justinnum1]

wait a second...what does this mean exactly?

The msport cars(not the 2,000 brakes) will have different brakes than the sportline?...how so?

what will be the difference in brakes between the 35sportline and the 335 msport?

edit-just noticed this was created months ago

[jpoet]

The brakes on my M Sport are definitely not what I would call low dust. I've only had my car for 3 days and the wheels are already filthy!

[verbs]

Originally Posted by justinnum1

wait a second...what does this mean exactly?

The msport cars(not the 2,000 brakes) will have different brakes than the sportline?...how so?

what will be the difference in brakes between the 35sportline and the 335 msport?

edit-just noticed this was created months ago

Different brake pads, not brakes. The brake pads on the M-sport supposedly are a bit more performance oriented, and performance oriented brake pads tend to create more brake dust and not last as long. It's a trade off. The sport line and other 335i models supposedly have a lower dust/lower performance oriented brake pad.

[justinnum1]

i'm all for better brakes

[bmrm396]

^^^ me too but i keep holding out HOPING and WAITING for msport blue brakes to come to the US ... pleeeeeeeeeeeeease BMW, for the love of god

[justinnum1]

yea, those blue breaks would match my estoril blue paint

[RPM90]

I missed this originally.
Interesting.

I wonder how they'll feel?
My last test drive was at the drive event with a 335i sport line.
Wonder if I'll feel anything different.

Day one when I get my Msport is to do a bedding session on the way home.
Must be done.
Don't forget to bed the new brakes for all new 3's.

[justinnum1]

Originally Posted by RPM90

I missed this originally.
Interesting.

I wonder how they'll feel?
My last test drive was at the drive event with a 335i sport line.
Wonder if I'll feel anything different.

Day one when I get my Msport is to do a bedding session on the way home.
Must be done.
Don't forget to bed the new brakes for all new 3's.

what are you going to do to bed your brakes?

[Elk]

One of many descriptions of brake pad bedding: http://zeckhausen.com/bedding_in_brakes.htm

It is amusing with some aggressive race pads as they smoke when first truly heated.

Take the advice not to use greater speeds seriously. The F30 is a street car with street car brake cooling. It is quite easy to melt piston seals, etc.

[RPM90]

Originally Posted by justinnum1

what are you going to do to bed your brakes?

Elks link shows a good procedure.

Here is another one:
http://www.american-performance-auto...procedure.html

The idea is the same though some show different speeds, number of times, etc...

I use a method closer to the link Elk posted.
And, as Elk said, DON'T heat them to the point of smoking.

I start with the low speed method and progress to higher speeds, then a decent length highway speed drive to let things cool nicely without applying the brakes hard

I wonder if the Msport cars will get something in the manual telling us about the different pads, along with BMW's bedding recommendation.

[Elk]

I'm sure BMW will merely suggest no hard braking for ___ miles, typical manufacturer break-in procedure.

[bcl0328]

Originally Posted by bmrm396

^^^ me too but i keep holding out HOPING and WAITING for msport blue brakes to come to the US ... pleeeeeeeeeeeeease BMW, for the love of god

paint em? lol

[Elk]

It is, in fact, easy to paint calipers if the color is important. You just need high temperature paint and a little patience.

[Maz335i]

Originally Posted by bcl0328

paint em? lol

Exactly!

I did mine in red!

...and I love them!

[bmrm396]

Originally Posted by bcl0328

paint em? lol

If someone wants to hand me their single fixed piston rear setup from tht package I'll swap out the r bum US sliding calipers fair and square haha