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Technical Topics Suspension / Chassis / Brakes Are the optional M Sport brakes on the 330i the same size as those on the M340i?

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      11-04-2018, 10:30 PM   #1
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Are the optional M Sport brakes on the 330i the same size as those on the M340i?

Does anyone know if the M sport brakes on a 330 and a M340 will have the same brake disc dimensions? Thanks.
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      11-06-2018, 11:13 AM   #2
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I believe they are the same..I have them on my 320i. Only downfall is that they squeal like hell in the winter!!
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      11-06-2018, 12:03 PM   #3
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Originally Posted by beemerlover13 View Post
I believe they are the same..I have them on my 320i. Only downfall is that they squeal like hell in the winter!!
Yes I believe you are right. And ya mine sqeaked like crazy too lol
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      11-06-2018, 12:11 PM   #4
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Originally Posted by Prissy View Post
Yes I believe you are right. And ya mine sqeaked like crazy too lol
It's terrible, I brought it is because of the noise and my car does has this loud clunk when in reverse only when it's cold out, in took it in 5 times and they don't know what it is.. I gave up but almost positive that it has something to do with the brakes and locking up in the cold..
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      11-06-2018, 01:17 PM   #5
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Quote:
Originally Posted by Prissy View Post
Does anyone know if the M sport brakes on a 330 and a M340 will have the same brake disc dimensions? Thanks.
On the F3X the 330 msport brakes (blue caliper) = standard 340
340 msport brakes (blue caliper) are bigger than standard

However with no standard model m340 the blue caliper msport upgrade for the 330 could be the same. I think more likely is there will be an intermediate size for the 330 but still smaller than the M340
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      11-07-2018, 07:29 AM   #6
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All of the blue calipers are the same (Brembo) they are used in the M2,M3, M4 and as an option on most other BMW models. The squeaking discussed above is because of the pads not the calipers, basically the moisture creates a rust layer and you have to generate heat to work that layer off. Not a big issue. There are some very good aftermarket pad options that not only resolve this issue but also reduce brake dust.
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      11-15-2018, 07:06 PM   #7
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Quote:
Originally Posted by pruettfan View Post
All of the blue calipers are the same (Brembo) they are used in the M2,M3, M4 and as an option on most other BMW models. The squeaking discussed above is because of the pads not the calipers, basically the moisture creates a rust layer and you have to generate heat to work that layer off. Not a big issue. There are some very good aftermarket pad options that not only resolve this issue but also reduce brake dust.
+1
The only difference is the size of the rotor paired with that caliper is different between the applications. I.e. the rotors on a F30 340i with the blue M-Sport brakes are smaller than the rotors on an M3. Same calipers though.
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      11-16-2018, 04:32 AM   #8
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Quote:
Originally Posted by beemerlover13 View Post
Quote:
Originally Posted by Prissy View Post
Yes I believe you are right. And ya mine sqeaked like crazy too lol
It's terrible, I brought it is because of the noise and my car does has this loud clunk when in reverse only when it's cold out, in took it in 5 times and they don't know what it is.. I gave up but almost positive that it has something to do with the brakes and locking up in the cold..
Sounds like you're describing the brake pads shifting. Nothing to worry about. This is not unusual in fixed caliper braking systems.
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      11-16-2018, 08:28 AM   #9
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Quote:
Originally Posted by xlover View Post
On the F3X the 330 msport brakes (blue caliper) = standard 340
340 msport brakes (blue caliper) are bigger than standard

However with no standard model m340 the blue caliper msport upgrade for the 330 could be the same. I think more likely is there will be an intermediate size for the 330 but still smaller than the M340
on mine f30 330i dimensions of msport brakes are: front rotor 370 mm with 4 pistons caliper, rear rotor 345 mm with 2 pistons caliper.
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