[kemiksiz]

Originally Posted by Dejan_

Ah sorry I misunderstood. Whats the verdict so far?

Let's Try Once Again


Ceramic 6 Pots Calipers with 370mm M Performance Discs? Possible? Anyone DONE?

Using these calipers with M Performance 370mm discs on F30

http://cdn3.volusion.com/ofeb6.fdp3x...jpg?1484327020

Cheers

[rwalker]

Originally Posted by kemiksiz

Let's Try Once Again


Ceramic 6 Pots Calipers with 370mm M Performance Discs? Possible? Anyone DONE?

Using these calipers with M Performance 370mm discs on F30

http://cdn3.volusion.com/ofeb6.fdp3x...jpg?1484327020

Cheers

Not possible. Ceramic 6 pots are sized for 400mm discs on the F8x, so figure 20mm too far out, radially, from the hub on an F30 when using a 370mm disc.

[kemiksiz]

Originally Posted by rwalker

Not possible. Ceramic 6 pots are sized for 400mm discs on the F8x, so figure 20mm too far out, radially, from the hub on an F30 when using a 370mm disc.

I see, thnk u so much

[devil84]

Originally Posted by Jadar

You have a 435i that already comes with the bigger dust shield. That dust shield is designed for cars that are sub 35i lines i.e. 320i, 328i since they have smaller brakes and a smaller hub.
If you replace your dust shields, you will just be putting on the same size again.

And yes the hubs must be pressed off. Not an easy DIY job.

does anyone know if the 430d x drive F36 comes with the bigger dust shield?

[Maxwagen]

So if I have a 2017 F31 X-drive with M-sport package, regardless of the packages, I should have the standard X-drive brakes which are the 312mm/300mm right? If the car had the optional M-sport brake package, it would have the 340mm/345mm rotors with the M-sport calipers?

I took a glance at realoem.com So first question is- to upgrade to the M-sport brakes on an X-drive, it seems all you would need would be the rotors, calipers and pads? Is the mounting the same?

Second question is, can the M-performance brakes (340mm/345mm) be fitted to the X-drive cars?

[Jim E.]

Originally Posted by Maxwagen

So if I have a 2017 F31 X-drive with M-sport package, regardless of the packages, I should have the standard X-drive brakes which are the 312mm/300mm right? If the car had the optional M-sport brake package, it would have the 340mm/345mm rotors with the M-sport calipers?

I took a glance at realoem.com So first question is- to upgrade to the M-sport brakes on an X-drive, it seems all you would need would be the rotors, calipers and pads? Is the mounting the same?

Second question is, can the M-performance brakes (340mm/345mm) be fitted to the X-drive cars?

Yes both M-sport and M-Performance brakes can be fitted. Front dust shield will be different. Rear should be ok.

Since you know how to use Realoem you should do a side-by-side comparison of parts to see if there are any other hardware differences.

M-performance = 370/345.

Choose your pads wisely. Especially if you have a particular aversion to excessive brake dust.

Look at the attached instructions for the M-performance kit for reference.

M-performance calipers = Red, Yellow or Orange.
M-sport caliper = blue.

[Maxwagen]

Originally Posted by Jim E.

Yes both M-sport and M-Performance brakes can be fitted. Front dust shield will be different. Rear should be ok.

Since you know how to use Realoem you should do a side-by-side comparison of parts to see if there are any other hardware differences.

M-performance = 370/345.

Choose your pads wisely. Especially if you have a particular aversion to excessive brake dust.

Look at the attached instructions for the M-performance kit for reference.

M-performance calipers = Red, Yellow or Orange.
M-sport caliper = blue.

That document is super helpful, thanks!

[OTN55]

just to clarify... the 370mm m performance driller and slotted rotors... are they lighter than the blank ones or the same weight?

[oceanview]

Originally Posted by OTN55

just to clarify... the 370mm m performance driller and slotted rotors... are they lighter than the blank ones or the same weight?

They are lighter! About 3.5 ounces per rotor

[Supafish]

Hi. I have read all the posts so far, other posts and websites about the brake upgrade. Just one more clarification.

I have 2018 440i LCI that has grey 4 piston front and 1 piston rear setup with 19 inch wheels.
If i ever considered upgrading brake, can i do folllowing?

Option 1. Upgrade front rotor only to 370mm since the front 4 piston is same as blue m sport brake and leave rear rotor as it is.
Option 2. Upgrade rear brake to 2 piston M sport brake and rotor, and upgrade the front rotor only to 370mm.
Option 3. Upgrade rear brake to m sport 2 piston brake and rotor and leave front brake as it is. I.e. stock grey 4 piston with 340mm.

What would be the most value for money upgrade?

Or if all the options arent safe or can't be done, change all of them to msport front and rear?

Thanks in advance guys.

[FaRKle!]

Originally Posted by Supafish

Hi. I have read all the posts so far, other posts and websites about the brake upgrade. Just one more clarification.

I have 2018 440i LCI that has grey 4 piston front and 1 piston rear setup with 19 inch wheels.
If i ever considered upgrading brake, can i do folllowing?

Option 1. Upgrade front rotor only to 370mm since the front 4 piston is same as blue m sport brake and leave rear rotor as it is.
Option 2. Upgrade rear brake to 2 piston M sport brake and rotor, and upgrade the front rotor only to 370mm.
Option 3. Upgrade rear brake to m sport 2 piston brake and rotor and leave front brake as it is. I.e. stock grey 4 piston with 340mm.

What would be the most value for money upgrade?

Or if all the options arent safe or can't be done, change all of them to msport front and rear?

Thanks in advance guys.

You can't upgrade the front rotor to 370mm without changing the caliper too. The pistons/pad area are the same between the calipers for 340 and 370mm rotors, but the mounts are different.

The cheapest option for you is to go with your "option 3" of just upgrading the rear caliper and rotor to 345mm/two-pistons. You'll probably still need to code that configuration into the car.

Unless you're tracking the car, you're not going to see a difference between the 340 and 370mm front rotors, and there's really not much functional value in upgrading either the front or rear. If you're doing it just for cosmetics, then I'd just upgrade the rear and paint the front caliper (but then again I'd go all the way if it was for cosmetics and get M-Perf rotors and the 370mm front caliper too).

[Supafish]

Originally Posted by FaRKle!

You can't upgrade the front rotor to 370mm without changing the caliper too. The pistons/pad area are the same between the calipers for 340 and 370mm rotors, but the mounts are different.

The cheapest option for you is to go with your "option 3" of just upgrading the rear caliper and rotor to 345mm/two-pistons. You'll probably still need to code that configuration into the car.

Unless you're tracking the car, you're not going to see a difference between the 340 and 370mm front rotors, and there's really not much functional value in upgrading either the front or rear. If you're doing it just for cosmetics, then I'd just upgrade the rear and paint the front caliper (but then again I'd go all the way if it was for cosmetics and get M-Perf rotors and the 370mm front caliper too).

Thanks for the advice. This clarified my dilemma v. easily!! Thanks.

[Johnny250]

Does anyone know if switching from the 370 m performance calipers to the 340 m sport calipers would create more wheel clearance? My current 370 m performance brakes rub a little on the barrel of my new wheels.

[FaRKle!]

Originally Posted by Johnny250

Does anyone know if switching from the 370 m performance calipers to the 340 m sport calipers would create more wheel clearance? My current 370 m performance brakes rub a little on the barrel of my new wheels.

It would have to since the rotor edge is 15mm closer to the center.

You'd also get the benefit of lighter rotors (go with the new ECS ones!).

[Johnny250]

Originally Posted by FaRKle!

It would have to since the rotor edge is 15mm closer to the center.

You'd also get the benefit of lighter rotors (go with the new ECS ones!).

ok i guess second part of my question.. can i use my yellow m performance brakes with a 340 mm front rotor? i'm guessing there might be a different bracket, and i just gotta buy that bracket.

[FaRKle!]

Originally Posted by Johnny250

ok i guess second part of my question.. can i use my yellow m performance brakes with a 340 mm front rotor? i'm guessing there might be a different bracket, and i just gotta buy that bracket.

Nope, since the mounts from the caliper to the hub are built into the caliper itself. There's no intermediate bracket between the hub and caliper like other designs. If you wanted to keep the yellow color you'd have to get a pair of 335/340i base front calipers and paint them the same yellow.

[Johnny250]

Originally Posted by FaRKle!

Nope, since the mounts from the caliper to the hub are built into the caliper itself. There's no intermediate bracket between the hub and caliper like other designs. If you wanted to keep the yellow color you'd have to get a pair of 335/340i base front calipers and paint them the same yellow.

damn. guess i'll try to trade my performance brakes for some m-sport option ones

[FaRKle!]

Originally Posted by Johnny250

damn. guess i'll try to trade my performance brakes for some m-sport option ones

You'll need to find M-Sport brakes from a 328ix, 330i/ix, or a 2-series (328i has smaller rear inner hub than the xDrive, and 335/340 use the 370mm front rotor/caliper on their M-Sport brake kits).

[Revoltos]

I've read all these posts and cant see that anyone has referenced the number stamped on the back of the Brembo four pots. The standard unfinished Brembo 4 pot has 340 stamped on the rear. The majority of the blue Brembo four pot (M sport) also have 340 stamped on the back. Then if you look hard enough there are Brembo blue calipers that have 370 stamped on the back. the radius between the the two mounting holes is clearly larger lending itself to fit a larger disc. From this I question the posts that say the standard grey Brembo and the blue brembos can take a 370mm disc. It would appear you actually need the blue brembo 4 pot that has 370mm stamped on the rear.

You then go into the m performance brakes and M3-M4 370/380mm calipers.

[FaRKle!]

Originally Posted by Revoltos

From this I question the posts that say the standard grey Brembo and the blue brembos can take a 370mm disc.

Grey = definitely can't take a 370/80mm rotor.

Blue = may or may not depending on if it was a blue caliper from a 328i/30i car (can't take 370/80mm rotor), or 335i/40i car (can take 370/80mm rotor).

[Anastomose]

Hi

I have a BMW F32 420d Coupe Europe B47 with 19’ inches wheels model 442M with M Sport kit.
The original brakes are:
Front rotor disk - 312x24mm
Rear rotor disk - 300x20mm

Last week i bought a second hand m sport calipers but I don’t have the rotors yet. My doubt is if is it possible to install with this calipers the m performance rotors?

I’m thinking to buy this parts:
34206797600 - 345x24mm _ rear disks
34106797603 - 370x30mm _front disks

Thanks in advance

[oceanview]

Originally Posted by Anastomose

Hi

I have a BMW F32 420d Coupe Europe B47 with 19’ inches wheels model 442M with M Sport kit.
The original brakes are:
Front rotor disk - 312x24mm
Rear rotor disk - 300x20mm

Last week i bought a second hand m sport calipers but I don’t have the rotors yet. My doubt is if is it possible to install with this calipers the m performance rotors?

I’m thinking to buy this parts:
34206797600 - 345x24mm _ rear disks
34106797603 - 370x30mm _front disks

Thanks in advance

Hi

Just that you know, both of the numbers you have listed are for the dimpled and slotted version (not flat rotor surface).

1. There are two types of front calipers for M Sport brakes. One will fit for the 340mm rotor, one will fit for the 370mm front rotor. So if you have the blue calipers, you need to make sure, for which front rotor size your caliper is made.
(If you have a red, yellow or orange caliper, they are only available for 370mm front rotor)

2. 34106797603 would be fine if your calipers are for 370mm rotors

3. Rear rotor: I checked realoem.com and as far as I can see, for the 420d with B47 engine the 345mm rear rotor is 34206797600.
(This is important as the emergency brakes are different. If you have the wrong rotor part number, it will not fit to your rear emgergency brake!)
The 420d with the N47N engine would need 34206797598 as rear rotor.

http://www.realoem.com/bmw/enUS/show...diagId=34_2313


The best would be you ask your dealer to verify the needed parts based on the VIN Code of your car.