[Sully57]

Thanks Norris, do you happen to have the owners/workshop manual for the 2017 530dx touring? I can’t figure out what oil is needed for a basic service….

[Norris83]

Originally Posted by Sully57

Thanks Norris, do you happen to have the owners/workshop manual for the 2017 530dx touring? I can’t figure out what oil is needed for a basic service….

You’re welcome. I don’t have it but there should be a sticker under the hood saying what oil is needed. Best thing to do is buy the oil from the dealership or online.

[creeking]

hi, Norris83

I got all M sport caliper and rotor set from 2022/840i, the part No. is same as you i think:

34116891303 left
34116891304 right
Front disc part numbers
34116875283 left
34106875284 right

can I install them to my X5 G05? the rotors retaining screws don't match? so How can i fix the rotors to my X5?

thanks so much!

[Norris83]

Originally Posted by creeking

hi, Norris83

I got all M sport caliper and rotor set from 2022/840i, the part No. is same as you i think:

34116891303 left
34116891304 right
Front disc part numbers
34116875283 left
34106875284 right

can I install them to my X5 G05? the rotors retaining screws don't match? so How can i fix the rotors to my X5?

thanks so much!

Everything should match up! When I search on realoem.com the part numbers for the discs, it says that they fit on the G05 X5. Also those calipers should fit.
Do the discs/rotors bolt pattern match the bolt pattern of your current discs?

[creeking]

Originally Posted by Norris83

Everything should match up! When I search on realoem.com the part numbers for the discs, it says that they fit on the G05 X5. Also those calipers should fit.
Do the discs/rotors bolt pattern match the bolt pattern of your current discs?

I am not sure the rotor, I still didnt get them, they are on the way.

thanks so much bro.@Norris83

I just want to double check 34116891303 can be used on G01- G05? right?

but the realoem said no..

[Norris83]

It will fit no problem!

[Marc R]

Originally Posted by Norris83

It will fit no problem!

Hi Norris,

Did you use the dustshields from the 348mm kit with the 374mm brakes?

[Norris83]

Originally Posted by Marc R

Hi Norris,

Did you use the dustshields from the 348mm kit with the 374mm brakes?

I didn’t change the dustshields and they were pretty much lined up with the discs/rotors.

[Marc R]

Originally Posted by Norris83

I didn’t change the dustshields and they were pretty much lined up with the discs/rotors.

Thank you

[Dinan_Rated]

If you already have the M40i with M big brakes this upgrade is not worth it in my opinion. I have my Wife's x3m40i Dinan badged with all they offer, CAI, Turbo Inlet, Springs and handling kit and the DINAN tune for all added and the brakes handle like a dream, DINAN claims HP is at 462 now but who knows. Pulls strong and feels closer to the X3mc. Can't notice a difference between the X3m40i and the X3mc

[Marc R]

Originally Posted by Dinan_Rated

If you already have the M40i with M big brakes this upgrade is not worth it in my opinion. I have my Wife's x3m40i Dinan badged with all they offer, CAI, Turbo Inlet, Springs and handling kit and the DINAN tune for all added and the brakes handle like a dream, DINAN claims HP is at 462 now but who knows. Pulls strong and feels closer to the X3mc. Can't notice a difference between the X3m40i and the X3mc

Well I just sold my M340i with the 374mm brakes and they perform miles better than my X3 M40i with the 348mm brakes....add that the X3 weighs more than 300kgs more... so i'll just upgrade them for peace of mind.

[WindowsStar]

I am having the issue with the front OEM rotors wearing out and having to be replaced every 3 to 4 years on the 2018 and 2020 {hers and his}, then front and rear at 6 years on the 2018. If I upgrade to the brakes as some have done in this thread will these last the life of the vehicle? I have never had this issue before with any other vehicles. I have a 1998 Cobra Mustang {bought new single owner} with 130K miles with some light track time and it has the original OEM rotors {many pad replacements but no rotors replaced}. My BMWs are NOT raced or tracked; just daily driver and trips 2 times a year under 1500 miles. BMW says the brakes and rotors wear out because of all the technology {ABS, Traction Control, Up Hill Assist, Corning Stability, and AWD in Bad Weather Assistance} using the brakes all the time. I understand that but replacing rotors every 3 years? That doesn't seem right. I have installed drilled rotors on my F150 and my daughters Accord and that fixed all the issues with overheating and rotor warp, my F150 is 20 years old and her Accord is 25 years old no rotors replaced. I am wondering if reducing the heat on the BMW rotors will make them last longer. Thoughts?

[Norris83]

Originally Posted by WindowsStar

I am having the issue with the front OEM rotors wearing out and having to be replaced every 3 to 4 years on the 2018 and 2020 {hers and his}, then front and rear at 6 years on the 2018. If I upgrade to the brakes as some have done in this thread will these last the life of the vehicle? I have never had this issue before with any other vehicles. I have a 1998 Cobra Mustang {bought new single owner} with 130K miles with some light track time and it has the original OEM rotors {many pad replacements but no rotors replaced}. My BMWs are NOT raced or tracked; just daily driver and trips 2 times a year under 1500 miles. BMW says the brakes and rotors wear out because of all the technology {ABS, Traction Control, Up Hill Assist, Corning Stability, and AWD in Bad Weather Assistance} using the brakes all the time. I understand that but replacing rotors every 3 years? That doesn't seem right. I have installed drilled rotors on my F150 and my daughters Accord and that fixed all the issues with overheating and rotor warp, my F150 is 20 years old and her Accord is 25 years old no rotors replaced. I am wondering if reducing the heat on the BMW rotors will make them last longer. Thoughts?

Are you having to replace the rotors because they get warped or because they wear down to less than the minimum thickness?
Have you ever machined them?
They’re 36mm thick new and 34mm is the minimum thickness, so you can generally machine them once.
I drove that car over 30,000 miles with those brakes and haven’t had any issues. You can generally get away with just changing pads on the rears they’re 22mm thick rotors. The fronts if they have pulsation/vibration some shops can machine them out but others will only recommend to change them.
I think the larger rotors will take a lot more heat to warp.

[WindowsStar]

@Norris83 Yes, it is because they have become out of tolerance according to BMW. BMW dealership will not machine them they will only replace them. While the vehicle was in warranty I didn't want to do something that would cause an issues where they would not do the work because I did not replace the rotors {something other than brakes, i.e. suspension, etc.}. Now that both are out of warranty, I am free to machine them or replace them or do something to get more life out of them. On my other vehicles I have replaced the solid rotors with drilled and that has fixed many many problems. My thoughts are if I removed more heat and had a better made rotor they would not wear out so quickly. Thoughts?

[Norris83]

Originally Posted by WindowsStar

@Norris83 Yes, it is because they have become out of tolerance according to BMW. BMW dealership will not machine them they will only replace them. While the vehicle was in warranty I didn't want to do something that would cause an issues where they would not do the work because I did not replace the rotors {something other than brakes, i.e. suspension, etc.}. Now that both are out of warranty, I am free to machine them or replace them or do something to get more life out of them. On my other vehicles I have replaced the solid rotors with drilled and that has fixed many many problems. My thoughts are if I removed more heat and had a better made rotor they would not wear out so quickly. Thoughts?

The oem rotors with the aluminum hats are much better quality than aftermarket ones that are one solid piece in the hub area. The oem ones with aluminum hubs are lighter weight and they act almost like a two piece rotors. Cross drilled rotors doesn’t do much to be honest. You’re almost better off upgrading with the larger discs 374x36 in the fronts or even the 395x36 off the x3m, M850I, X5/X6/X7 and 370x22 in the rears. They can take more heat!
Look on eBay for a used set of calipers.
You can pick up a decent pair of front calipers off a 750I G12 that are grey unpainted but take the 374x36 for about $800-$1000.

[WindowsStar]

@Norris83 Thank you for your valuable advice. I wanted to use the X3M calipers and rotors and I found a set on eBay for a great price, however they will not bolt on the vehicle, the vehicles have different knuckles (are there adapters?). If the M850I and/or X5/X6/X7 fit as in direct bolt on I would very much consider that.

[Norris83]

Originally Posted by WindowsStar

@Norris83 Thank you for your valuable advice. I wanted to use the X3M calipers and rotors and I found a set on eBay for a great price, however they will not bolt on the vehicle, the vehicles have different knuckles (are there adapters?). If the M850I and/or X5/X6/X7 fit as in direct bolt on I would very much consider that.

X3M calipers will fit, they’re the same as the X5/X6/X7 calipers. If you go with X3M rotors they would fit too but the retaining screws don’t line up. The caliper and wheels will hold the rotors in place anyways. I put those rotors on my X5 recently.
If you use 395x36mm rotors from X5/X6/X7 M850I, G12 750I they fit perfectly and the retaining screws line up too.

[WindowsStar]

Originally Posted by Norris83

X3M calipers will fit, they’re the same as the X5/X6/X7 calipers. If you go with X3M rotors they would fit too but the retaining screws don’t line up. The caliper and wheels will hold the rotors in place anyways. I put those rotors on my X5 recently.
If you use 395x36mm rotors from X5/X6/X7 M850I, G12 750I they fit perfectly and the retaining screws line up too.

I was reading some of your other posts saying the same thing. This really bothers me that the dealership and 2 independent BMW techs all told me the X3M system would not fit because the knuckles are different. The dealership said that there is a 92% difference between the X3M and X3 M40i. Why would they lie about it. If the car is out of warranty what do they care. I had a sweet deal on a full set of X3M calipers/rotors/pads everything they came off a totaled 2020 X3M with only 2100 miles. I sent them back because I was told they would not fit. Thanks for all your information, very helpful.

[WindowsStar]

Norris83 Do you have all the X3M part numbers needed for a complete set of calipers/rotors/pads for a 2020 X3 M40i?

[WindowsStar]

Norris83
Thanks for all your help - Thoughts on this fitting correctly on the 2020 X3 M40i. Pricey...
https://www.turnermotorsport.com/p-5...t-kit-for-spo/

[jrveron]

Originally Posted by WindowsStar

Norris83
Thanks for all your help - Thoughts on this fitting correctly on the 2020 X3 M40i. Pricey...
https://www.turnermotorsport.com/p-5...t-kit-for-spo/

Take a look here: https://x3.xbimmers.com/forums/showthread.php?t=1852608

Also, good discussion here: https://x3.xbimmers.com/forums/showthread.php?t=2092874

[Norris83]

Originally Posted by WindowsStar

Norris83
Thanks for all your help - Thoughts on this fitting correctly on the 2020 X3 M40i. Pricey...
https://www.turnermotorsport.com/p-5...t-kit-for-spo/

A cheaper option would give you similar results is looking for used set online/ebay or trying to piece it together.

If you can find a set off of G12 M760I, G12 LCI 750I, G14/G15/G16 M850I, G05/G06/G07 X5/X6/X7 any of those would be same size brakes to the X3M. You can use X3m front rotors from rockauto dynamic friction brand is super cheap but so far it’s been great on our X5. I have attached pictures of them.

2020+ M550I slightly smaller front rotors 374mm

Or you can buy individual parts

Rear caliper carriers to accommodate larger discs, using your existing rear calipers I assume they’re blue?
34206891773 left side
34206891774 right side

Rear rotors from X5 370x24mm
34216860927 x 2 pieces
Or Basically X3M size rotors! You can use X3M rotors from rockauto get Dynamic friction discs brand much cheaper!

Front calipers for 395x36mm discs. Look for used ones on ebay!
34106891327 or 34106891335 Left side
34106891328 or 34106891336 right side
Basically X3M size! You can use X3M rotors from rockauto get Dynamic friction discs brand much cheaper!

Another options for the front calipers is for 374x36mm rotors
34116891303 left side
34116891304 right side