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      04-02-2016, 09:45 PM   #67
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i was @ 56k miles on the original fronts so ended up replacing front rotors with the F85 rotors and used E70 x5m pads.

Still have about 11k left on the rears so i'll be doing those next.

I also had them measure the rotor thickness and it was right at the minimum 34mm .

I looked around and found south atlanta bmw to have the cheapest price on rotors.
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      04-19-2017, 08:09 AM   #68
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Time for some new brakes and I would like to go with these new rotors for my X6M. For you guys that have swapped these from the older rotors how are they holding up against corrosion and pitting? I ask because I was over at my local dealer and looked at a couple 2017 MY on the lot and the rotors were a mess. The rotor hats/hubs looked all corroded and rusted. If I am going to fork out this kind of dough I don't want these to corrode and look like crap in a year. Thanks for your feedback.
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      04-20-2017, 03:44 AM   #69
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The discs on my F85 rotors have rusted and the hats are starting to pitt. I haven't used the X5 much these last 4-5 months and its been sat, little open to the elements but it's little disheartening to see corrosion on the hats.
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      04-20-2017, 04:48 AM   #70
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Thanks for they reply. I was told by my local shop that BMW changed their alloy and it's a real problem. Many customers are complaining about rusted rotors and they advised me to stay away from the F85 rotors and look for a quality aftermarket solution. Problem is there is not many aftermarket choices that I have have found. May have to just go with the original factory rotors.
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      04-20-2017, 05:43 AM   #71
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Agree, they certainly perform well but the corrosion is off putting. I'm sure I can make them look like new again but that's beside the point... The original hats are less complicated and do not create much of problem to maintain. No denying the F85 cross drills though
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      04-20-2017, 10:37 AM   #72
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Maybe caliper paint on the hats?
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      04-20-2017, 02:08 PM   #73
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I ordered some EBC Rotors front and rear. Back ordered until May. GD series black zinc coated slotted and dimpled. I will pair with Carbotech pads being made now.
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      04-20-2017, 03:38 PM   #74
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Where did you find them? Some link maybe?
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      04-20-2017, 04:51 PM   #75
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Quote:
Originally Posted by X Driver View Post
Where did you find them? Some link maybe?
same here, interested on details if these are for X5M/X6M.

Thank you!
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      04-20-2017, 06:27 PM   #76
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Quote:
Originally Posted by boneca View Post
same here, interested on details if these are for X5M/X6M.

Thank you!
I had to order from online dealer in USA ( live in Canada) Was told they were on their way from UK to USA and would arrive by May 5. Placed order...then received a message half our later they were back ordered and they did not have an ETA. Now I am pissed. I called the online rep and they said EBC has not given an ETA nor a manufacture date. I was told by one retailer here in Canada 3 month wait. Cannot find any available in the USA. I have spoken to several distributors and there are no parts in any US warehouse or EBC's warehouse. If you search and can find them let me in on the secret so I can order too

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USR1813 front
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      04-20-2017, 06:28 PM   #77
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Quote:
Originally Posted by X Driver View Post
Where did you find them? Some link maybe?
see my post...maybe you will have better luck being in Europe.
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      04-21-2017, 09:47 PM   #78
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anyone have Adam's Rotors on their M? Looking at this as an option.
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      04-22-2017, 04:47 AM   #79
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Quote:
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see my post...maybe you will have better luck being in Europe.
Same here don't find anything in Europe
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      04-22-2017, 10:26 PM   #80
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For those who did it, is it worth putting the new rotors on knowing about the rust? Also, did you put the new pads from the F85?
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      04-23-2017, 07:54 AM   #81
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Quote:
Originally Posted by gan23 View Post
For those who did it, is it worth putting the new rotors on knowing about the rust? Also, did you put the new pads from the F85?
It may be just from the rotors those hubs are aluminum so they should not rust. Maybe what you saw was iron runoff after a wash staining the hubs. But if they changed alloys then who knows, if they have impurities in the aluminum that's no good.

I did see a used X5M in the lot and it's rotors looked fine just normal aluminum oxidation so who knows.

One idea is to have the rotor hats clear powder coated and that way you keep the elements off of them, the brake dust is acidic so it will affect the aluminum over time. Same reason if you don't clean your rims the brake dust will damage your wheel finish.
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      04-23-2017, 08:24 AM   #82
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Quote:
Originally Posted by -c- View Post
It may be just from the rotors those hubs are aluminum so they should not rust. Maybe what you saw was iron runoff after a wash staining the hubs. But if they changed alloys then who knows, if they have impurities in the aluminum that's no good.

I did see a used X5M in the lot and it's rotors looked fine just normal aluminum oxidation so who knows.

One idea is to have the rotor hats clear powder coated and that way you keep the elements off of them, the brake dust is acidic so it will affect the aluminum over time. Same reason if you don't clean your rims the brake dust will damage your wheel finish.
Could be, but that is not what I saw. these were brand new 2017's sitting in the lot and all the rotors and hats were rusted, discolored and corrosion build up. I also put a magnet on the rotor hat and it was magnetic (aluminum alloy with high iron content I suppose). I hope I am wrong....just have to wait until some one with these chimes in here.
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      04-23-2017, 10:51 AM   #83
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Its more like an accumulation of iron and grime that's sitting on the ally surface. We all know what happens when steel and aluminum mixes... usually white powdery residue
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      04-23-2017, 12:35 PM   #84
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Quote:
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Its more like an accumulation of iron and grime that's sitting on the ally surface. We all know what happens when steel and aluminum mixes... usually white powdery residue
That's my thought. I think when I get mine I'll take it over to the shop that does coatings by me and have the hats coated with high temp clear.
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      04-23-2017, 02:53 PM   #85
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I have these on my '13X5M and no issues whatsoever. If I had a complaint, it's does seem that when they are parked wet overnight (evening car wash or rain) there is some squeal backing out of the garage - rust in the holes I suppose. But once I travel forward the noise is gone, also mine is a daily driver so there is little chance of rust build up. The hats are aluminum and do not rust.

I installed them with the pads specific for a '13X5M.
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      04-25-2017, 09:51 AM   #86
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I'm getting close on my pads/rotors. Will probably move towards this solution as well.

Did anyone pair the F85 rotors with a lower dust aftermarket pad? The brake dust on these beasts is unbearable
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      04-25-2017, 11:01 AM   #87
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I haven't done the F85 rotors yet since I still had another brake change on mine, but I did throw some stoptech ceramic/cf pads on. They have very little dust and by the time you start to notice the dust your car should have already been washed. I'm not too happy with the braking though. They have to warm up to bite like the original pads...just a few stops though, not super terrible.

Next time I'll do the F85 rotors and a different pad composition, does hawk make pads for this truck? I'm a fan of stoptech so I'll look there first.
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      04-25-2017, 11:43 AM   #88
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I haven't done the F85 rotors yet since I still had another brake change on mine, but I did throw some stoptech ceramic/cf pads on. They have very little dust and by the time you start to notice the dust your car should have already been washed. I'm not too happy with the braking though. They have to warm up to bite like the original pads...just a few stops though, not super terrible.

Next time I'll do the F85 rotors and a different pad composition, does hawk make pads for this truck? I'm a fan of stoptech so I'll look there first.
can you provide link where u ordered stoptech ceramic/cf pads, I might be due to change my rotors/pads/sensors next month...
is the bmwofsouthatlanta is still cheapest place to get the rotors?
than you
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