[Bozman52]

Going back to the caliper thing for a second, let me clarify a bit further. I was previously going from memory, but I just opened my "brake upgrade" spreadsheet that I made a while back. The 550i and 750i share the same front calipers (part #34116786817 and 34116786818). If the manufacturer of the wheels say they will fit on a 550i, then you'll be fine with the caliper upgrade. The 760i calipers are identical to the 550i/750i in overall dimensions, but they accept a slightly larger brake pad. That's the only difference.

Regarding your question on cross drilled rotors, finding these for a 550/750/760 off the shelf is very elusive. Zimmerman makes them for the REAR, which is what I have on my own car now, but not for the front, which I find odd. There is a company in the US called Brakenetic that buys solid rotors off the shelf and then cross drills/slots/paints them i-house and resells them (https://www.brakenetic.com/product/f...bnp34127-cd-3/).

I spoke with these guys when I was doing my brake upgrade and they seemed very knowledgeable. For the application we're discussing, they said they used solid Brembo rotors as the base ahead of modifying, so the quality of the rotor is good. Had I not been able to source all the X5M parts for my desired upgrade, I probably would have ordered a set of the 550/750 rotors from Brakenetic instead. Unfortunately, if you live outside the US (like me), the shipping and importing fees are what will make this option less desireable for you. Otherwise, I don't know of anyone who has found cross drilled rotors off the shelf for a 550/750/760.

I've not heard of the Mtech place you mentioned, but they could possibly be doing the same thing as Brakenetic. It may be worth calling them and asking some questions.

[Flying_Squad]

Agreed, from my research too (funnily enough, much like yourself, I also created a spreadsheet about 6 months ago, to decipher this upgrade and all the components), the caliper size and part numbers are identical between the 550i and 750i, as are the carriers. It's the latter, which are ever so slightly larger/shaped different and in turn, differentiates them from lesser engine 5 and 7 series models e.g. 535D here in the UK.

Very odd that Zimmerman make rear drilled but not front, considering these are rear wheeled cars with bigger front brakes!

I've found these, but again, not sure on the quality, as you can see, prices vary significantly, depending on brand:

https://www.ebay.co.uk/itm/FOR-BMW-5...Cclp%3A2334524

https://www.ebay.co.uk/itm/BMW-750i-...EAAOSw6X1cWq9l

Showing out of stock at this time, but the same site you used to find the Zimmerman discs:
https://www.buycarparts.co.uk/vaico/7656517


Also, is it necessary to change the brake pad wear sensors, or are these interchangeable from what's currently on the 520D?

[Bozman52]

I'd contact the ebay sellers and see if they will tell you what manufacturer makes the rotors they're selling and ask if they did the cross drilling themselves. It's too important of a component to be left to chance. Any reputable place should be willing to share info with you. As I said, Brakenetic was happy to speak with me and did not hide the fact they used Brembo OEM rotors as their base.

Regarding the link to the rotor on buycarparts.uk, I saw that too when I looked. There were actually a few option that had pictures of cross drilled rotors, but in the description it just said "vented" or "internally vented." This implies they're solid rotors with just the usual internal fins. The Zimmerman ones that are cross drilled say "internally vented, cross drilled" in the description. As such, I'm skeptical as to whether or not the rotors in your link are actually cross drilled. I'd say call and ask, but I know it will patch you through to the main supplier in Germany called Autodoc, and they won't have a clue if that specific rotor is cross drilled or not.

Instead, you could take the Vaico part number (V20-80100) and call Vaico directly to ask about the rotor. You'll probably get much better info this way. I just had a look on their website and managed to get to their parts catalog, but it does not show the same part number from your link. There are a few cross drilled rotors in their catalog, but for the 1 and 3 series. It may be that the V20-80100 part is actually cross drilled, but it looks like you'll have to enquire over the phone with Vaico to be certain.

[Flying_Squad]

Did Brakenetic say they deliver to the UK when you had discussions with them? Can’t be cheap even if they did.

As for everything else you’ve mentioned, I totally agree. Will keep you posted on what I discover.

[Bozman52]

Yes, Brakenetic was happy to ship to the UK, but obviously I would have had to pay the shipping and import fees. The shipping is a function of weight (HEAVY!) and the import fees a function of price (about 20% on top of sales price), so this added to my decision to do the X5M caliper upgrade.

[Tevzadze2.0]

Finally got around to this . F01 calipers and 374mm rotors for my 535

[Flying_Squad]

Originally Posted by Tevzadze2.0

Finally got around to this . F01 calipers and 374mm rotors for my 535

Did you need to replace the wear sensors?

Any after pics of the new rotor caliper combo?

[Tevzadze2.0]

Originally Posted by Flying_Squad

Did you need to replace the wear sensors?

Any after pics of the new rotor caliper combo?

Originally Posted by Flying_Squad

Did you need to replace the wear sensors?

Any after pics of the new rotor caliper combo?

I ordered the sensors should be done by next week

[550iFreak]

I did the x5M front brake upgrade about 2 years ago and it works fantastic on my 550i. Night and day difference and it looks phenomenal on my 20inch wheels.

With that said, I wanted to upgrade the rears to accommodate the fronts. I reread this post and noticed a potential fit of using 370mm rotors from a F01 7 series and the 550i GT.

In order to use the rotors, the stock 550i caliper/carrier setup won’t accept it so I went ahead and bought a set of M5 rear calipers/carriers from a reputable European salvage yard. It had low miles from a 2014 M5 which is good since my rear calipers are 130k miles old. Still works flawlessly since I performed a professional flush the past couple of months.

Anyways, I do like to report and fully verify that the 370mm rotors WILL FIT with the M5/M6 carriers and the corresponding brake calipers(550i or the Ms) without modifications or extra brackets. Fully bolt on and go.

It also further fill the wheel up nicely

Now the pictures are as followed:

Parts acquired.
Dry fit
Old setup vs new setup
View of the car with new setup(dry fit)
View of the massive front brakes

It will be completed this weekend after I choose what color brakes and doing one of the major overhaul of the belt driven system including the engine driven water pump.

[ramman434]

So I'm trying to read all of this but it's a lot of gibberish to me. I need to replace my rear brakes on my '16 535, so I figure that I might as well do a full upgrade at all 4 wheels to 550 brakes. My understanding is that everything will bolt right up, without modification. Is that correct?

If so, would anyone happen to have a cheat sheet full list of part#s I would need for each wheel to make this work? I need to get off my ass and start ordering parts, as stopping the car is more important than the go fast parts that I'd like to buy.

[550iFreak]

Finally decided on the paint color and did it.

Driver side was very easy and bolts right up no issues.

Passenger side gave me a small fight since I had to modify and cut the dust shield to clear the bracket. I wonder if they sent me two driver side units even though it was written as left and right side caliper set.

I also had to clock the EPB motor 180 degrees for the passenger side as well.

But man they came out good

[Flying_Squad]

I need some help on the possibility of mixing/utilising a combination of both F01 750i and 760i parts for this brake upgrade.

Situation is this...

If I have F01 750i calipers and carriers (34116786817/18 and 34116786829 respectively), am I able to use them with F01 760i rotors?

I understand the F01 760i rotors have a smaller hat (172mm diameter I believe) and thus a larger surface area compared to the F01 750i.

I also understand the F01 760i uses a larger brake pad (although, how the caliper sizes of the 750i and 760i are the same, still baffles me, considering the latter accepts a larger/taller pad).

Reason I'm wanting to use 750i calipers with 760i rotors; for now I'm intending on using the F01 750i caliper, but would like to future proof my setup, in case I decide/get hold of some G30 5 Series 374mm calipers in the future.

My thinking is that I could decide to swap the calipers over, knowing the F01 760i rotors would be able to take the bigger pads that the G30 374mm calipers use.

Tried searching, but doesn't look as though anyone is using the 750i caliper with the 760i rotor., as there would be no need, unless you wish to future proof like I said.

But hoping someone out there can put me out of my misery and confirm my theory?

[Bozman52]

Originally Posted by ramman434

So I'm trying to read all of this but it's a lot of gibberish to me. I need to replace my rear brakes on my '16 535, so I figure that I might as well do a full upgrade at all 4 wheels to 550 brakes. My understanding is that everything will bolt right up, without modification. Is that correct?

If so, would anyone happen to have a cheat sheet full list of part#s I would need for each wheel to make this work? I need to get off my ass and start ordering parts, as stopping the car is more important than the go fast parts that I'd like to buy.

I have a spreadsheet for all the part numbers for all the various permutations of these brake upgrades. Here is the list for a 550i set up:

Front Rotors: 34116785675, 34116785676
Front Calipers: 34116786817, 34116786818
Front Caliper Carrier: 34116786829 (need two, same # for each side)
Front Pads: 34116851269

Rear Rotors: 34216775289 (need two, same # for each side)
Rear Calipers: 34216793047, 34216793048
Rear Caliper Carrier: 34216793053, 34216793054
Rear Pads: 34216775346

Brake Pad Wear Sensors: Rear (34356791962), Front (34356791958)

Hope it helps!

[Bozman52]

Originally Posted by 550iFreak

Finally decided on the paint color and did it.

Driver side was very easy and bolts right up no issues.

Passenger side gave me a small fight since I had to modify and cut the dust shield to clear the bracket. I wonder if they sent me two driver side units even though it was written as left and right side caliper set.

I also had to clock the EPB motor 180 degrees for the passenger side as well.

But man they came out good

It's great to see that someone else has done the X5M upgrade! They look great. Now you just need an "M" or "Brembo" decal on the caliper

[Bozman52]

Originally Posted by Flying_Squad

I need some help on the possibility of mixing/utilising a combination of both F01 750i and 760i parts for this brake upgrade.

Situation is this...

If I have F01 750i calipers and carriers (34116786817/18 and 34116786829 respectively), am I able to use them with F01 760i rotors?

I understand the F01 760i rotors have a smaller hat (172mm diameter I believe) and thus a larger surface area compared to the F01 750i.

I also understand the F01 760i uses a larger brake pad (although, how the caliper sizes of the 750i and 760i are the same, still baffles me, considering the latter accepts a larger/taller pad).

Reason I'm wanting to use 750i calipers with 760i rotors; for now I'm intending on using the F01 750i caliper, but would like to future proof my setup, in case I decide/get hold of some G30 5 Series 374mm calipers in the future.

My thinking is that I could decide to swap the calipers over, knowing the F01 760i rotors would be able to take the bigger pads that the G30 374mm calipers use.

Tried searching, but doesn't look as though anyone is using the 750i caliper with the 760i rotor., as there would be no need, unless you wish to future proof like I said.

But hoping someone out there can put me out of my misery and confirm my theory?

Hmmm, interesting dilemma. I would definitely say that you could NOT do it the other way around and use 760i calipers on 750i rotors. However, like you say the hat on the 760i rotor is slightly smaller than that on 750i rotors, so I don't see any reason why there would be an issue with 750i calipers on 760i rotors. It should technically work . . . but it's easy for me to say that when I'm not the one trying it!

[ramman434]

Originally Posted by Bozman52

I have a spreadsheet for all the part numbers for all the various permutations of these brake upgrades. Here is the list for a 550i set up:

Front Rotors: 34116785675, 34116785676
Front Calipers: 34116786817, 34116786818
Front Caliper Carrier: 34116786829 (need two, same # for each side)
Front Pads: 34116851269

Rear Rotors: 34216775289 (need two, same # for each side)
Rear Calipers: 34216793047, 34216793048
Rear Caliper Carrier: 34216793053, 34216793054
Rear Pads: 34216775346

Brake Pad Wear Sensors: Rear (34356791962), Front (34356791958)

Hope it helps!

You're amazing. Thank you!!!

[ramman434]

Bozman52 , quick question on the brake pad sensors: Do I need to get 2 for the front & 2 for the back? Or do I just need 1 for front & 1 for back?

I'm making up my own spreadsheet now w/a cost analysis of sticking with stock or doing the upgrade.

[Bozman52]

Originally Posted by ramman434

Bozman52 , quick question on the brake pad sensors: Do I need to get 2 for the front & 2 for the back? Or do I just need 1 for front & 1 for back?

I'm making up my own spreadsheet now w/a cost analysis of sticking with stock or doing the upgrade.

You just need one sensor for the front and one for the back, as they're only connected to one caliper on each end of the car.

[Flying_Squad]

Originally Posted by Bozman52

Hmmm, interesting dilemma. I would definitely say that you could NOT do it the other way around and use 760i calipers on 750i rotors. However, like you say the hat on the 760i rotor is slightly smaller than that on 750i rotors, so I don't see any reason why there would be an issue with 750i calipers on 760i rotors. It should technically work . . . but it's easy for me to say that when I'm not the one trying it!

Thanks for chipping in with your knowledge Bozman, much appreciated as ever. Agreed and what I was also logically thinking in my head.

[ptrkp]

Originally Posted by Bozman52

I have a spreadsheet for all the part numbers for all the various permutations of these brake upgrades. Here is the list for a 550i set up:

Front Rotors: 34116785675, 34116785676
Front Calipers: 34116786817, 34116786818
Front Caliper Carrier: 34116786829 (need two, same # for each side)

Or with the 760i calipers
Front Calipers: 34116786827, 34116786828
Front Caliper Carrier: 34116786829 (need two, same # for each side)
Pads: 34116794464

[ramman434]

ptrkp Do the 760i caliper bolt right up to the 535i like the 550i's do? Are they better in some way, or have better gripping power, or whatever?

[Bozman52]

Originally Posted by ramman434

ptrkp Do the 760i caliper bolt right up to the 535i like the 550i's do? Are they better in some way, or have better gripping power, or whatever?

Generally speaking, the 760 calipers are identical to the 750, and both will bolt directly to the front of an F10 with no modification. They're both still single piston calipers and have identical dimensions. The difference with the 750/760 is that the 760 accepts a brake pad with a slightly larger surface area. The difference is so subtle that I don't personally think there's any difference, so I would recommend you go with whatever the cheapest option is. I don't even understand why BMW has two different options here.

If you find some cheap 760 calipers, then go that route. If you find cheap 750 calipers, then go that route. IIRC, there is a post in the first few pages of this thread that has pictures showing the difference in the brake pads of each option.

One VERY important thing to note is that if you use 760 calipers, you MUST use 760 rotors. The hat on the 760 rotor is slightly smaller to provide clearance for the larger brake pad. As far as I am aware, a 750 rotor will not work with a 760 caliper (but the opposite should be fine).

Also note that all of the above is for front rotors/calipers only. 7-series rear brakes will not bolt to an F10.