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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Scrape problem ! HELP !



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      07-27-2014, 12:22 PM   #1
ron_001
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Scrape problem ! HELP !

Hi everybody,
sorry for my English but I will try my best to do.
I have a BMW E90 (2008).

My wheel setup is:

Front: 9J ET 48 with 25mm spacer makes ET 23 -> 215/35R19
Back: 10J ET 45 with 25mm spacer makes ET 20 -> 235/35R19

Tires are stretch, and fender ar original (and wanne keep them original).

Now the problem is in the back, that the tire not scrape, but the wheels (little scratches)
Provisionally solution: So now i put a 30mm spacer so the weel comes a litte out of the car, and now scrape the tire.
They scrape not much, but if it scrape is it bether the tire than the weel.

What can i do? And i'm the only one with this problem?
Pictures can help me !!!
Here you see the wheels with 25mm spacer, so the wheel whil scrape (not much).



Thx for help...
Greetings from Belgium
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      07-27-2014, 01:21 PM   #2
MonacoBlueE90
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You basically have 4 different possibilities.
Add little bit negative camber, so the wheel doesn't hit the fender.
Add FK bumpstops, so it limits the suspension travel. http://www.fk-shop.de/en/Suspension-...ter-21-mm.html.
Get stiffer springs for coils, so it doesn't compress that easily/much, when hitting bumps.
Get 1-2mm narrower spacer.
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      07-27-2014, 01:25 PM   #3
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How much camber do you have? Do you have any pictures with the 30mm spacers?
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      07-27-2014, 01:30 PM   #4
ron_001
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Thx, how much camber? I dunno...
Everything is positive.
The problem is, if i put 15mm spacers on it it look like the wheel will scrape also...
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      07-28-2014, 03:44 AM   #5
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Quote:
Originally Posted by ron_001 View Post
Thx, how much camber? I dunno...
Everything is positive.
I assume your alignment is within specs, so you don't have that much camber, maybe somewhere around -1-(-1.5). definitely not positive. If you add camber it should go past the fender and not hit it. How much is needed that's something that needs to be tested. Those Fk bumpstops could be also good solution it limits the suspension movement so, when hitting bigger bumps etc it stops the movement and the wheel wont hit the fender.
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      07-28-2014, 08:35 AM   #6
ron_001
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Thx, it's help me a lot.
But why i hit the fender with 25mm spacer AND ALSO with 15mm spacer?
Becouse the fender is 10mm?
I try to do my best but i cant without help.
I will try it with the FK bumpstops.
But i don't wanne roll the fenders.
And preferably not much camber becouse it's not good for the tire's and it's a dailly car and every day i transport 2 children so i wanne keep it safe.
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      07-28-2014, 08:52 AM   #7
Marshall878
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Try and find where its scraping. I recon a bit off the lip would solve the issues.

Usually you can spot the point with a build up of rubber/paint.
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      07-28-2014, 06:53 PM   #8
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Quote:
Originally Posted by MonacoBlueE90 View Post
You basically have 4 different possibilities.
Add little bit negative camber, so the wheel doesn't hit the fender.
Add FK bumpstops, so it limits the suspension travel. http://www.fk-shop.de/en/Suspension-...ter-21-mm.html.
Get stiffer springs for coils, so it doesn't compress that easily/much, when hitting bumps.
Get 1-2mm narrower spacer.
+ 1
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      07-31-2014, 12:54 PM   #9
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You should not scrape with 15mm spacer. If you do, try 12mm spacer since you have 10" rim.
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      08-02-2014, 03:44 AM   #10
ron_001
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Now i have 30mm spacers, en the same problem.
If i ride the car, I can not hear any noise of rubbin', scrapin', ...
After i came back from a ride i look to my rim and i see rubber on the lip of te rim (stretch)
I have the problem with 30mm spacers, 25mm spacers, and 15mm spacers.
Where is the problem????
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      08-02-2014, 02:00 PM   #11
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Sow, i mounted some red tape on the wheels. (All around)
I drive 20km on verry bad roads, and the tape is 100% in good condition, so i think now i don't scrape...
After few weeks research and work, it looks like i found the problem.
The stance is good for me, but i don't have pictures yet.
Thank you all for help.
I have 2 kids so it's also a family car and i want some comfort.
The kids are now 6 months and the other 2 years, but are the kids grow up maybe the car wil scrape again.
On the 12th of august i will roll my fenders for security.
Problem solved.
This is a good forum.
Sorry for the bad English.
Gr Aaron

Last edited by ron_001; 08-02-2014 at 02:06 PM.
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