[jedi-knight83]

I might have an opportunity to strip a set of blue Msport brakes from a 320d F30.

I have a 330d F31.

Other than the obvious parts, callipers, carriers, disks, stone guards etc.... what else will I need?

Was the brake servo and master cylinder the same between the standard brakes and Msport brakes?

Will I need to code the car?

Thanks in advance.

[draggy]

Originally Posted by jedi-knight83

I might have an opportunity to strip a set of blue Msport brakes from a 320d F30.

I have a 330d F31.

Other than the obvious parts, callipers, carriers, disks, stone guards etc.... what else will I need?

Was the brake servo and master cylinder the same between the standard brakes and Msport brakes?

Will I need to code the car?

Thanks in advance.

You may want to think about different pads that dust less or going with stainless steel lines but other than that it's just swap, bleed, then go.

[5mall5nail5]

Coding, most importantly....

[jedi-knight83]

Originally Posted by 5mall5nail5

Coding, most importantly....

can you elaborate on this please?

What needs coding?

[5mall5nail5]

Originally Posted by jedi-knight83

can you elaborate on this please?

What needs coding?

What brake setup do you currently have on the car? Are they the single piston units all around?

[jedi-knight83]

Originally Posted by 5mall5nail5

What brake setup do you currently have on the car? Are they the single piston units all around?

Yes. In the UK there are 2 options.

Standard brakes - single piston, unpainted. 340mm front

Msport brakes - 4 bot, painted blue, 370mm front for 330d or 340mm front for lower models

[5mall5nail5]

Originally Posted by jedi-knight83

Yes. In the UK there are 2 options.

Standard brakes - single piston, unpainted. 340mm front

Msport brakes - 4 bot, painted blue, 370mm front

Right - so given that you have standard brakes you will need to code for S2NHA or "SPBR" in E-SYS. If you just install 4 piston front and 2 piston rear calipers on your car without having SPBR coded, the brake pedal nearly goes to the floor.

[johnung]

Originally Posted by jedi-knight83

Yes. In the UK there are 2 options.

Standard brakes - single piston, unpainted. 340mm front

Msport brakes - 4 bot, painted blue, 370mm front

Are you aware that the M Sport brakes with the 370mm front rotors and the 345mm rear rotors will only fit under 18 inch and larger road wheels? You cannot use 17 inch wheels with these brakes.

A friend of mine in Europe went through a similar brake upgrade. There can be a compatibility issue with the rear parking brakes. The rear parking brakes are a drum brake design. The "drum" is actually the inside of the rotor hat of the rear brake rotor.

The F30 models actually use two parking brake sizes. Most use 185mm diameter parking brakes which is what the M Sport 345mm x 24mm rear rotors have. But some of the lower F30 models use smaller 160mm diameter parking brakes. It's a very subtle difference to the eye because the rotor hats themselves are just 25mm less in diameter.

If you happen to have the smaller 160mm parking brake there is a solution. Don't even think about swapping rear hubs and parking brake components. It's way too expensive and labor intensive. But there are available aftermarket rotors in 345mm x 24mm with the smaller rotor hats to contain a 160mm parking brake. If you run into that problem let me know and I can try to get you a source and part number from my friend.

Hope this helps!

[jedi-knight83]

Originally Posted by 5mall5nail5

Right - so given that you have standard brakes you will need to code for S2NHA or "SPBR" in E-SYS. If you just install 4 piston front and 2 piston rear calipers on your car without having SPBR coded, the brake pedal nearly goes to the floor.

Thanks for the info. Can you code this with the bimmercode app?

[jedi-knight83]

Originally Posted by johnung

Are you aware that the M Sport brakes with the 370mm front rotors and the 345mm rear rotors will only fit under 18 inch and larger road wheels? You cannot use 17 inch wheels with these brakes.

A friend of mine in Europe went through a similar brake upgrade. There can be a compatibility issue with the rear parking brakes. The rear parking brakes are a drum brake design. The "drum" is actually the inside of the rotor hat of the rear brake rotor.

The F30 models actually use two parking brake sizes. Most use 185mm diameter parking brakes which is what the M Sport 345mm x 24mm rear rotors have. But some of the lower F30 models use smaller 160mm diameter parking brakes. It's a very subtle difference to the eye because the rotor hats themselves are just 25mm less in diameter.

If you happen to have the smaller 160mm parking brake there is a solution. Don't even think about swapping rear hubs and parking brake components. It's way too expensive and labor intensive. But there are available aftermarket rotors in 345mm x 24mm with the smaller rotor hats to contain a 160mm parking brake. If you run into that problem let me know and I can try to get you a source and part number from my friend.

Hope this helps!

Thanks for the info.

Starting to sound like a pain of an upgrade. I've already decided to take a miss on the 320d brakes as they will only be 340mm.

But now it sounds like I will have the wrong parking brake set up as well as mine just has the small brakes as standard. How would I check which parking brake set up I have?

Oh but at least I already have the 19" wheels. I think all Msport models in the UK came with 18" minimum size

[5mall5nail5]

Originally Posted by jedi-knight83

Thanks for the info.

Starting to sound like a pain of an upgrade. I've already decided to take a miss on the 320d brakes as they will only be 340mm.

But now it sounds like I will have the wrong parking brake set up as well as mine just has the small brakes as standard. How would I check which parking brake set up I have?

Oh but at least I already have the 19" wheels. I think all Msport models in the UK came with 18" minimum size

If you take a picture of your rear rotor/shield area we could tell you. It's not an issue with the parking brake, its an issue with which rotor you need and what shields you need. My 2015 328 (RWD) had the "large hub" rotors, despite everything saying 328's have small hub. BMW started using all large-hub stuff like 4/15 or something. I think I documented it some where.

That, and some cars have a small rear rotor shield that won't fit over the 345mm rear rotors in the M perf/M sport kit. Its not as bad as it sounds. Easy to sort out once you know the caveats.

[johnung]

Originally Posted by jedi-knight83

Thanks for the info.

Starting to sound like a pain of an upgrade. I've already decided to take a miss on the 320d brakes as they will only be 340mm.

But now it sounds like I will have the wrong parking brake set up as well as mine just has the small brakes as standard. How would I check which parking brake set up I have?

Oh but at least I already have the 19" wheels. I think all Msport models in the UK came with 18" minimum size

Please don't be discouraged. This is a tremendously worthwhile upgrade to end up with 4-piston Brembo fronts and 2-piston Brembo rears, either in 370/345 or 340/345 flavors. The full Brembos are so much better than what you have.

Odds are that you have the larger parking brake. I just wanted you to know what the issues were if you ran into it. See the attached photo. With your VIN you can quickly look up which of the two brake shoe sizes your car has.

Definitely upgrade to stainless steel brake lines at the same time. StopTech set is only $106. Much better brake pedal feel.

[jedi-knight83]

Ok it says mine is 185mm. So that's one less thing to worry about at least.

[5mall5nail5]

Originally Posted by jedi-knight83

Ok it says mine is 185mm. So that's one less thing to worry about at least.

yep and even if it was the smaller size there is a BMW rear dimple slotted rotor for that. I was sent it by mistake. either way though it's not horrible. no, it can't be coded via Bimmercode unfortunately.

[draggy]

Originally Posted by 5mall5nail5

Right - so given that you have standard brakes you will need to code for S2NHA or "SPBR" in E-SYS. If you just install 4 piston front and 2 piston rear calipers on your car without having SPBR coded, the brake pedal nearly goes to the floor.

I was under the impression only the 370mm upgrade needed coding - there's even a coding option for the 340mm upgrade from standard brakes?

[jedi-knight83]

Originally Posted by 5mall5nail5

yep and even if it was the smaller size there is a BMW rear dimple slotted rotor for that. I was sent it by mistake. either way though it's not horrible. no, it can't be coded via Bimmercode unfortunately.

Balls. Even I expert mode on Bimmercode?

Whats the other program I need then please?

[johnung]

Originally Posted by draggy

I was under the impression only the 370mm upgrade needed coding - there's even a coding option for the 340mm upgrade from standard brakes?

The coding is the same for the 340 and 370 calipers. They are exactly the same 4-piston Brembo calipers. The piston diameters are identical in both of them. So for instance if your car came with grey front Brembos in 340, you can upgrade to 370 without having to code.

The only difference is in the length of the casting since the bolt holes in the 370 calipers are 15mm further out from center to fit the rotors than are 15mm greater radius (30mm greater diameter. You would have to have a great eye to spot the difference.

But if you flip the front caliper over the 340 has a raised "340" on it. The 370 front caliper has a raised "370/380" on it. (The same caliper mounts on an M car and fits a 380mm rotor, and NO you can't fit a 380mm rotor on an F30!) See attached photos.

[Chris_ks]

Originally Posted by johnung

Are you aware that the M Sport brakes with the 370mm front rotors and the 345mm rear rotors will only fit under 18 inch and larger road wheels? You cannot use 17 inch wheels with these brakes.

A friend of mine in Europe went through a similar brake upgrade. There can be a compatibility issue with the rear parking brakes. The rear parking brakes are a drum brake design. The "drum" is actually the inside of the rotor hat of the rear brake rotor.

The F30 models actually use two parking brake sizes. Most use 185mm diameter parking brakes which is what the M Sport 345mm x 24mm rear rotors have. But some of the lower F30 models use smaller 160mm diameter parking brakes. It's a very subtle difference to the eye because the rotor hats themselves are just 25mm less in diameter.

If you happen to have the smaller 160mm parking brake there is a solution. Don't even think about swapping rear hubs and parking brake components. It's way too expensive and labor intensive. But there are available aftermarket rotors in 345mm x 24mm with the smaller rotor hats to contain a 160mm parking brake. If you run into that problem let me know and I can try to get you a source and part number from my friend.

Hope this helps!

Hi, i am planning to fit blue m sport brakes on my F20.. I saw on real oem and my “Supporting ring brake shoe” is D=160MM.

Then i checked about rear discs, Ate and Zimmerman(150.2921.20) rear 345mm discs described as internal drum’s diameter —> 161mm.

Is this the “problem” which you described? And if they say internal 161mm, does it mean that these rear discs are suitable for my 160mm drums ?

Thanks for your help..

[johnung]

Originally Posted by Chris_ks

Hi, i am planning to fit blue m sport brakes on my F20.. I saw on real oem and my “Supporting ring brake shoe” is D=160MM.

Then i checked about rear discs, Ate and Zimmerman(150.2921.20) rear 345mm discs described as internal drum’s diameter —> 161mm.

Is this the “problem” which you described? And if they say internal 161mm, does it mean that these rear discs are suitable for my 160mm drums ?

Thanks for your help..

The Zimmermann part number that you mentioned, according to my notes, is a rear 345mm x 24mm rotor with a internal handbrake diameter of 160mm. If you found something that happens to list it as being 161mm, I'm sure that it's the same part. With the F3x there are only two sized handbrakes: 160mm and 185mm.

You say that you have an F20 which is a 1-Series. It sounds like from your statements and questions that the F30 and F20 may use some of the same parts. You said that you are going to upgrade to blue M Sport Brakes.

BMW throws around the "M Sport" marketing label so it means different things on different F3x models. I don't really know what "M Sport" means on whatever F20 model that you have.

Sorry, I have experience with F3x brakes but I don't know much about F20 brakes.

[Chris_ks]

Hi, it’s exactly same brakes on F20 and F30 that’s why i asked you.
The blue brakes “M sport” will be front with 340mm discs and rear with 345mm discs.
Blue calipers are as mentioned four piston front ones and 2 pistons rear ones.

So My only question is about the “problem” you said for rear ones where i can confirm that I have 160mm drums as real oem says..

So the solution is to fit the above discs as i explained or is anything else that i need ?

[Boostedphil698]

Jeasus christ, just buy the M Performance BBK and you'll have all the hardware except rear rotors. Piecing together a kit is tedious. Coding needs to be done, it changes how fluid travels to the two piston caliper in the rears as opposed to the singles you have now.

[Chris_ks]

I didn’t ask about coding, I know that it needs coding.

M performance needs 18” wheels at least, I want to use 17” wheels and there is no need for me to spend the amount M performance BBK costs!!

If you have any help about my question it would be helpful, otherwise your comment is completely off topic!