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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Alignment problem, any ever expierence this?



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      07-07-2009, 03:57 PM   #1
dragazn
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Alignment problem, any ever expierence this?

16k miles and the car pull to the right and it does wear the tire out unevenly. Install a new set of tire and got an alignment from FireStone they said they were able to fix the uneven wear on tire, however they can't adjust the car bc bmw doesn't have any way to adjust that, even ask what if I bring to thea dealer can they do it, he said no.

I have never hit any curb or hard pothole.
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      07-07-2009, 04:08 PM   #2
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Let us know the make and model of your tires and the specs of your alignment.

This vehicle offers a wide range of alignment adjustments, which may fix the issue.
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      07-07-2009, 04:55 PM   #3
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Quote:
Originally Posted by Ray View Post
Let us know the make and model of your tires and the specs of your alignment.

This vehicle offers a wide range of alignment adjustments, which may fix the issue.
2008 e92, on OEM 230 style with F: 235/35/19 R: 265/30/19, tire are General Exclaim UHP. The car stock to the bone except for JB3. Will post alignment specs after I pick the car up
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      07-07-2009, 06:39 PM   #4
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The car was never in an accident or ran over any curb. The car still pull to the right, the tech from Firestone said its b/c of the rear tire pushes to the right and they can't adjust it. Below are the specs of the rear:

Driver Rear: Camber -1.8degree Toe .11degree
Passenger Rear: Camber -1.2degree Toe .13degree
Total Toe: .25degree
Thrust Angle: .01degree

Rear tire pressure is 39psi and front is 36psi.

Anything I can do to help the uneven wear on tire later and stop the car from pulling to the right?
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      07-07-2009, 08:36 PM   #5
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The "tech" from firestone doesn't know what he's talking about. Please take it to a reputable shop.
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      07-07-2009, 09:28 PM   #6
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Originally Posted by SoCalTech View Post
The "tech" from firestone doesn't know what he's talking about. Please take it to a reputable shop.
So from the data above we can align and get the car proper again?
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      07-07-2009, 09:54 PM   #7
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Your thrust angle is dead on, and that wouldn't cause a pull, it would cause you to dog track. Need to know the front angles to know what's going on.
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      07-07-2009, 11:07 PM   #8
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Quote:
Originally Posted by SoCalTech View Post
Your thrust angle is dead on, and that wouldn't cause a pull, it would cause you to dog track. Need to know the front angles to know what's going on.
Here are the Front specs
Driver Front:
Camber: -.3degree, Caster: 6.6degree, Toe .1degree
Passenger Front:
Camber: .1degree, Caster: 6.5degree, Toe .11degree
Total Toe: .21degree
Steer Ahead: -.01degree

Also could you let me know what number need to be change in order for the car to go straight by looking at the specs?
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      07-08-2009, 02:39 PM   #9
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The difference between the driver and passenger side cambers (both front and rear) are too great. Even though they are all within spec, the variables are too distant.

Your shop is correct. This car does not offer a true front camber adjustment, but they can adjust the rear.

Alignment settings aside, I suspect you are experiencing a radial pull. I recommend that rotate the front driver and passenger tires. If symptoms continue, consult with your alignment shop for a further inspection.
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      07-08-2009, 04:40 PM   #10
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Quote:
Originally Posted by Ray View Post
The difference between the driver and passenger side cambers (both front and rear) are too great. Even though they are all within spec, the variables are too distant.

Your shop is correct. This car does not offer a true front camber adjustment, but they can adjust the rear.

Alignment settings aside, I suspect you are experiencing a radial pull. I recommend that rotate the front driver and passenger tires. If symptoms continue, consult with your alignment shop for a further inspection.
Are you saying to rotate the front driver with the front apssenger? If tht is so I have to dismount and mount and also rebalance as well, since I got a directional tire
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      07-08-2009, 05:10 PM   #11
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Quote:
Originally Posted by dragazn View Post
Are you saying to rotate the front driver with the front apssenger? If tht is so I have to dismount and mount and also rebalance as well, since I got a directional tire
you are correct, passenger to driver (front).

You don't have to dismount the tires for this test. You may experience excessive road noise and I do not recommend you try this in the rain, but all you want to find out is if the car still pulls.
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