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      03-07-2021, 04:30 AM   #45
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Originally Posted by KushPatel View Post
UPDATE! It took me a while to get ISTA+ finally working on my laptop, but once I did, I used it to activate this pump by the master cylinder and bled the brakes and now they're working perfectly once again! At first they felt nearly the same, but after a few days of use, they kept increasing and are now better than ever!

Thank you Jadar for saving my life!
I need your help..... I have the same issue with my f30 I purchased the blue 2 pistons calipers for the rear and I'm feeling my breaks mushi And it sinks in how can I fix this issue your help would be greatly appreciated.... I bleed the system twice and can't fix the issue.
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      04-02-2021, 02:24 PM   #46
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Rear caliper upgrade

Hey guys!

So om doing this soon also, but i didnt know the upgrade needed coding. I have never coded anything on my car before. What i know is this:

Rear rotors need to be 345 in order for the calipers to fit. I also know you have to bleed the calipers, but what i didnt know was that the car has to be in "bleeding mode"? Do i have to hook the car up to a pc for bleeding the calipers? How can i find what to do in the software when i code the upgrade?

Im new to this forum, joined today. I really need help, bmw dealers in sweden take shitloads of money to do this kind of stuff, so im all DIY. [IMG][/IMG]
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      04-07-2021, 07:32 AM   #47
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Hi all,

Completely in the other direction for my dilemma.
I have single piston all round, and I only want to upgrade the fronts to 340mm Brembo and leave the single piston at the back as the OP had.

Question - apart from the calipers and disks, do I need to code my car? Do I need any other additional hardware?

Thank you
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      04-10-2021, 09:34 PM   #48
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Quote:
Originally Posted by Nimana View Post
Hey guys!

So om doing this soon also, but i didnt know the upgrade needed coding. I have never coded anything on my car before. What i know is this:

Rear rotors need to be 345 in order for the calipers to fit. I also know you have to bleed the calipers, but what i didnt know was that the car has to be in "bleeding mode"? Do i have to hook the car up to a pc for bleeding the calipers? How can i find what to do in the software when i code the upgrade?

Im new to this forum, joined today. I really need help, bmw dealers in sweden take shitloads of money to do this kind of stuff, so im all DIY. [IMG][/IMG]
There was never any bleed mode required for bleeding calipers or changing brake fluid. You just had to code for the appropriate brake size change. The only bleeding mode is actually a setting you put the car in when you let air into the brake system and or change out the brake booster pump. It's a setting the csr is placed in and usually sits for over 24 hours and cavitates the booster to clear the air.

As far as getting ISTA for your car do a search on here there are people that can send you the program to download via email. It's changed quite a lot and evolved since I've messed with BMW cars but there are people on here ther can send it to you.
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      04-10-2021, 09:39 PM   #49
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Quote:
Originally Posted by hulksta View Post
Hi all,

Completely in the other direction for my dilemma.
I have single piston all round, and I only want to upgrade the fronts to 340mm Brembo and leave the single piston at the back as the OP had.

Question - apart from the calipers and disks, do I need to code my car? Do I need any other additional hardware?

Thank you
Yes you have to code for the 340mm I'm assuming you're using. It's a totally different clamping pressure and you need to have the ecu understand that due to the brake caliper and rotor size change. Coding you need ISTA and the cable. Do a search on the forum there are Memebers that can send you the ISTA program free and the cable is like $30-$40 bucks if I remember correct. I don't know anymore I'm not on these forums that much anymore.
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      04-12-2021, 06:43 AM   #50
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Quote:
Originally Posted by Jadar View Post
Yes you have to code for the 340mm I'm assuming you're using. It's a totally different clamping pressure and you need to have the ecu understand that due to the brake caliper and rotor size change. Coding you need ISTA and the cable. Do a search on the forum there are Memebers that can send you the ISTA program free and the cable is like $30-$40 bucks if I remember correct. I don't know anymore I'm not on these forums that much anymore.
Thank you.
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      04-27-2021, 02:32 AM   #51
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Quote:
Originally Posted by Jadar View Post
Yes you have to code for the 340mm I'm assuming you're using. It's a totally different clamping pressure and you need to have the ecu understand that due to the brake caliper and rotor size change. Coding you need ISTA and the cable. Do a search on the forum there are Memebers that can send you the ISTA program free and the cable is like $30-$40 bucks if I remember correct. I don't know anymore I'm not on these forums that much anymore.
I guess you'll probably need to install the upgraded Master Cylinder too. All cars that have the 340/370mm 4-piston front calipers from the factory have the larger MC. I've read in other threads that some people, who went your way, had a very mushy pedal afterwards when they didn't change the MC.

Go for one from a 335i/d, which have at least the 340 front caliper. I think it's the same with the ones on M3/M4. Of course, do your homework first.
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      04-27-2021, 02:36 AM   #52
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Quote:
Originally Posted by hulksta View Post
Hi all,

Completely in the other direction for my dilemma.
I have single piston all round, and I only want to upgrade the fronts to 340mm Brembo and leave the single piston at the back as the OP had.

Question - apart from the calipers and disks, do I need to code my car? Do I need any other additional hardware?

Thank you
Apart from the upgraded MC as I wrote above, I also forgot that you'll need the larger rotor shields.
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      04-27-2021, 08:28 AM   #53
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Quote:
Originally Posted by Tommi_Mav View Post
Apart from the upgraded MC as I wrote above, I also forgot that you'll need the larger rotor shields.
The existing one work fine, I didn't have to change mine for the new 345mm rotors. I had the 340mm/330mm brakes from the factory with the grey M-Sport 4 piston caliper in the front. I guess the cars with base brakes might need new shields. I didn't have to do any coding either.
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      05-03-2021, 03:32 AM   #54
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Originally Posted by thatBimmerBloke View Post
The existing one work fine, I didn't have to change mine for the new 345mm rotors. I had the 340mm/330mm brakes from the factory with the grey M-Sport 4 piston caliper in the front. I guess the cars with base brakes might need new shields. I didn't have to do any coding either.
Yes, but you already had the 340 4-pots in front. The member asking has single pots all round, so he definitely gonna need upgraded MC and coding.
Regarding the shields, he probably won't need them, but I pointed them out in case he wants to have a complete stock look.
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      07-07-2021, 05:31 AM   #55
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Really helpful, thanks for posting!
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      07-08-2021, 01:16 PM   #56
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Quote:
Originally Posted by Tommi_Mav View Post
Quote:
Originally Posted by Jadar View Post
Yes you have to code for the 340mm I'm assuming you're using. It's a totally different clamping pressure and you need to have the ecu understand that due to the brake caliper and rotor size change. Coding you need ISTA and the cable. Do a search on the forum there are Memebers that can send you the ISTA program free and the cable is like $30-$40 bucks if I remember correct. I don't know anymore I'm not on these forums that much anymore.
I guess you'll probably need to install the upgraded Master Cylinder too. All cars that have the 340/370mm 4-piston front calipers from the factory have the larger MC. I've read in other threads that some people, who went your way, had a very mushy pedal afterwards when they didn't change the MC.

Go for one from a 335i/d, which have at least the 340 front caliper. I think it's the same with the ones on M3/M4. Of course, do your homework first.
I have never seen BMW call for an upgraded MC tbh, they always had the complete bbk in the catalogs. It may be the case if you have like a 28i or 30i car as everything is smaller on those cars including the rear axles so that's why the dust plate is such a pita to change on those when swapping to bbk. It could be the case but for 35i or 40i cars coding properly always worked from what I saw. Also to note different type of pads also made world of difference in pedal mush feel.
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      07-08-2021, 01:18 PM   #57
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Quote:
Originally Posted by Tommi_Mav View Post
Quote:
Originally Posted by hulksta View Post
Hi all,

Completely in the other direction for my dilemma.
I have single piston all round, and I only want to upgrade the fronts to 340mm Brembo and leave the single piston at the back as the OP had.

Question - apart from the calipers and disks, do I need to code my car? Do I need any other additional hardware?

Thank you
Apart from the upgraded MC as I wrote above, I also forgot that you'll need the larger rotor shields.
Only on the sub 35i cars you'll need the dust shields. 35i and up the shields are the same that bmw bbk comes with so it's a waste of time. They're just throw away or paperweights.
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      07-08-2021, 11:47 PM   #58
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Quote:
Originally Posted by Jadar View Post
I have never seen BMW call for an upgraded MC tbh, they always had the complete bbk in the catalogs. It may be the case if you have like a 28i or 30i car as everything is smaller on those cars including the rear axles so that's why the dust plate is such a pita to change on those when swapping to bbk. It could be the case but for 35i or 40i cars coding properly always worked from what I saw. Also to note different type of pads also made world of difference in pedal mush feel.
Well, Hulksta has a 30d. Best thing is to check via his VIN on realoem.com if his MC is the same with more powerful versions. If he's ok with that, then he's done just with coding.
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      07-09-2021, 07:28 AM   #59
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Quote:
Originally Posted by Tommi_Mav View Post
Quote:
Originally Posted by Jadar View Post
I have never seen BMW call for an upgraded MC tbh, they always had the complete bbk in the catalogs. It may be the case if you have like a 28i or 30i car as everything is smaller on those cars including the rear axles so that's why the dust plate is such a pita to change on those when swapping to bbk. It could be the case but for 35i or 40i cars coding properly always worked from what I saw. Also to note different type of pads also made world of difference in pedal mush feel.
Well, Hulksta has a 30d. Best thing is to check via his VIN on realoem.com if his MC is the same with more powerful versions. If he's ok with that, then he's done just with coding.
Yeah true real oem is a great recourse for sure. He should post and update here when he sorts it all out
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      07-21-2021, 11:24 AM   #60
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I need to do this
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      08-17-2021, 10:17 AM   #61
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I’m sure this question has been asked 20 times but what are we painting these with? I ordered some blue rear m240 brake calipers for my f30 335i and want th all to match. I’m ok doing it myself also. Thanks for advice!
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      08-17-2021, 12:27 PM   #62
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What kind or brand of paint did you spray? Thanks!

Quote:
Originally Posted by Nimana View Post
Hey guys!

So om doing this soon also, but i didnt know the upgrade needed coding. I have never coded anything on my car before. What i know is this:

Rear rotors need to be 345 in order for the calipers to fit. I also know you have to bleed the calipers, but what i didnt know was that the car has to be in "bleeding mode"? Do i have to hook the car up to a pc for bleeding the calipers? How can i find what to do in the software when i code the upgrade?

Im new to this forum, joined today. I really need help, bmw dealers in sweden take shitloads of money to do this kind of stuff, so im all DIY. [IMG][/IMG]
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      08-17-2021, 02:05 PM   #63
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Great write-up for an "easy" upgrade. However, in shopping for the calipers, seems that because they have an ///M on the side of them, they are quite overpriced! My question is this: Is there a Brembo part number for the rear 2 piston caliper that is compatible with the mounting on the BMW's?
Thanks in advance - Any help would be appreciated!
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      08-20-2021, 09:03 AM   #64
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Quote:
Originally Posted by Jungatron View Post
I’m sure this question has been asked 20 times but what are we painting these with? I ordered some blue rear m240 brake calipers for my f30 335i and want th all to match. I’m ok doing it myself also. Thanks for advice!
I got mine painted at a shop but I've read some good feedback on G2 caliper paint, it needs to be brushed on the calipers and evens out itself while drying. https://www.g2usa.com
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      08-25-2021, 01:24 PM   #65
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Quote:
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Quote:
Originally Posted by Jungatron View Post
I’m sure this question has been asked 20 times but what are we painting these with? I ordered some blue rear m240 brake calipers for my f30 335i and want th all to match. I’m ok doing it myself also. Thanks for advice!
I got mine painted at a shop but I've read some good feedback on G2 caliper paint, it needs to be brushed on the calipers and evens out itself while drying. https://www.g2usa.com
Thanks. Went a different route. If it fails I'll just have them blasted and powder coated :-)
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      01-22-2023, 08:39 PM   #66
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Originally Posted by Jadar View Post
After much controversy I found out that the M235i runs this setup from the factory. 340mm front (blue) 345mm rear (blue).
Sorry for necro but...

Do you or anyone else know if a M235i caliper will fit on an F30?

Having trouble procuring the 2 piston rear brembos at a reasonable price.
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