M550i (G30) Brakes on F31 (18)

newbeach · 05-23-2021, 06:36 AM

Hey guys,

So I came over a set of unused blue M performance brakes that came from factory on a M550i 2018, G30 model. I thought it would be cool to put them on my F31 320d touring.

I know the bolt pattern is 5x120 on the G30 so I realise the discs will have to be replaced. I will need some sort of adapter, I tried the front caliper on but the mounting holes are different, does anyone know if there is an adapter to be bought somewhere?

I also suspect there will be a fair bit of coding required, any tips there?
The new brakes have electronic parking brake, the F30 does not.

Now, I got these really cheap so before you say it was a dumb thing to buy, I can probably sell them and easily make a buck if the project becomes to hard or expensive

Thanks in advance

alohasurftoad · 05-23-2021, 08:04 AM

I thought the bolt pattern for G30 is 5x112?

I would sell sell them and get the m-sport or m-perf brakes for our F3x series.

Tommi_Mav · 05-24-2021, 04:20 AM

5x120 is the bolt pattern for the F3x.

cfm56d7b · 05-27-2021, 12:14 PM

My suggestion is to never install brakes not specifically designed for your vehicle.

Logicoeur · 05-28-2021, 12:26 PM

Quote:

Originally Posted by cfm56d7b

My suggestion is to never install brakes not specifically designed for your vehicle.

That cuts out a lot of the aftermarket bbks which reuse popular oem calipers and some generics. Boring

FrankDK · 05-29-2021, 01:39 AM

I fitted M6 brakes, on my F36. That`s an improvement.

Watsey · 05-29-2021, 06:50 AM

Your biggest issue is, obviously, how you are going to achieve a working parking brake when the F3X uses cable-operated brake shoes.

It'll be a world of pain. I'd just stop now and buy F3X components.

FrankDK · 05-29-2021, 07:08 AM

Exactly. I am still on the standard 330mm rear brakes, debating on buying a 4 piston setup. Just because of the handbrake issue.

Logicoeur · 05-29-2021, 10:50 AM

Quote:

Originally Posted by FrankDK

I fitted M6 brakes, on my F36. That`s an improvement.

The problem with this is having to go 19/20 inch wheels. If it's a show car and just sitting around to look pretty, ok. If you want to drive the car like it's supposed to be driven, then it's a no from me dawg.

The 370/345 is more than enough for spirited driving and with good pads and fluid enough for a hardcore HPDE too.

FrankDK · 05-29-2021, 11:30 AM

Quote:

Originally Posted by Logicoeur

Quote:

Originally Posted by FrankDK

I fitted M6 brakes, on my F36. That`s an improvement.

The problem with this is having to go 19/20 inch wheels. If it's a show car and just sitting around to look pretty, ok. If you want to drive the car like it's supposed to be driven, then it's a no from me dawg.

The 370/345 is more than enough for spirited driving and with good pads and fluid enough for a hardcore HPDE too.

The 370/345 is more than enough for spirited driving and with good pads and fluid enough for a hardcore HPDE too.[/QUOTE]

You are so right. But I got these very cheap.I did the 370/345 conversion on my f31. They are more than enough.

05-23-2021, 06:36 AM	#1
newbeach Registered 0 Rep 2 Posts Drives: 320d -18 Join Date: May 2021 Location: Sweden iTrader: (0)	M550i (G30) Brakes on F31 (18) Hey guys, So I came over a set of unused blue M performance brakes that came from factory on a M550i 2018, G30 model. I thought it would be cool to put them on my F31 320d touring. I know the bolt pattern is 5x120 on the G30 so I realise the discs will have to be replaced. I will need some sort of adapter, I tried the front caliper on but the mounting holes are different, does anyone know if there is an adapter to be bought somewhere? I also suspect there will be a fair bit of coding required, any tips there? The new brakes have electronic parking brake, the F30 does not. Now, I got these really cheap so before you say it was a dumb thing to buy, I can probably sell them and easily make a buck if the project becomes to hard or expensive Thanks in advance
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05-23-2021, 08:04 AM	#2
alohasurftoad Brigadier General 3077 Rep 4,325 Posts Drives: 440i gran coupe w/mppsk Join Date: Apr 2015 Location: hawaii iTrader: (0)	I thought the bolt pattern for G30 is 5x112? I would sell sell them and get the m-sport or m-perf brakes for our F3x series.
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05-24-2021, 04:20 AM	#3
Tommi_Mav Private First Class 66 Rep 133 Posts Drives: F32 435dx Join Date: Mar 2020 Location: Greece iTrader: (0) Garage List 2014 F32 435d X-drive [0.00]	5x120 is the bolt pattern for the F3x.
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05-27-2021, 12:14 PM	#4
cfm56d7b Lieutenant General 5886 Rep 10,256 Posts Drives: 2017 440i Gran Coupe & 2015 X5 Join Date: Nov 2012 Location: Orange County, CA iTrader: (2)	My suggestion is to never install brakes not specifically designed for your vehicle.
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05-29-2021, 01:39 AM	#6
FrankDK Private First Class 170 Rep 139 Posts Drives: f36 435i Join Date: Jul 2019 Location: Silkeborg Denmark iTrader: (0) Garage List 2015 435i gran coupé [0.00]	I fitted M6 brakes, on my F36. That`s an improvement. Attached Images
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05-29-2021, 06:50 AM	#7
Watsey Major General 6404 Rep 8,493 Posts Drives: F31 330D sDrive M Sport Join Date: Jun 2015 Location: On sabbatical. iTrader: (1)	Your biggest issue is, obviously, how you are going to achieve a working parking brake when the F3X uses cable-operated brake shoes. It'll be a world of pain. I'd just stop now and buy F3X components. __________________ Current : F31 330sD, remapped, Ohlins Road & Track, Millway camber plates, Quaife LSD, Stoptech brakes + Pagid RSL1 pads all round, Weichers front strut brace, Eibach front & rear anti-roll bars, Michelin MP4S.
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05-29-2021, 07:08 AM	#8
FrankDK Private First Class 170 Rep 139 Posts Drives: f36 435i Join Date: Jul 2019 Location: Silkeborg Denmark iTrader: (0) Garage List 2015 435i gran coupé [0.00]	Exactly. I am still on the standard 330mm rear brakes, debating on buying a 4 piston setup. Just because of the handbrake issue.
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