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Old 01-12-2005, 04:23 PM   #1
vmwerks
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Alignment angles

Exactly what is adjustable in terms of alignment for the front and rear on the E46 chassis?
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Old 01-12-2005, 05:14 PM   #2
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I can send you the alignment specs out of the Bentley manual if you like, that should tell you everything that is adjustable.
Shoot me an E-mail if you're interested.
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Old 01-26-2005, 03:43 PM   #3
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Talking some answers:

FRONT: Only toe-in is adjustable easily. Many alignment shops will charge you a "2 wheel alignment" when they only set the front toe.
The camber actually is a teeeny bit adjustable, but only by unlocking the upper mount. The upper mount is unlocked by drilling out the little nubbie that is up through the body with the three mounting bolts. When you remove this nubbie, you never know which way you can slide the upper mount, but you can now slide it and adjust the camber.
Caster is NOT adjustable on an e46, and there actually should be no need for adjusting the caster unless you wreck the car. Adjusting, or actually correcting, caster should NOT be done with the upper mount because 99.999999% of the time, the caster error is from the bottom of the strut being bent, not the top.

REAR: Rear toe is adjustable on all e36 and e46 cars. This is also where error can accumulate to make the car steer to one side or the other (as opposed to "Pull" to one side or the other, but its the same result) A good alignment shop can use this to your advantage (thrust angle)
Rear camber is also adjustable on ALL e36 and e46, but I don't know why many shops say it is not, and try to weasel out of it. There must be some industry spec book or something that lists it as being non adjustable, but that would be incorrect.

Hope this helps, Jay Morris
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Old 01-26-2006, 09:49 PM   #4
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bolts

Can camber bolts be used on the M3 to get more neg dailed into the front end? I know the thread is only a year old but why not
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Old 01-27-2006, 01:25 AM   #5
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Quote:
Originally Posted by vmwerks
Exactly what is adjustable in terms of alignment for the front and rear on the E46 chassis?
Camber, Castor, and Toe are all you need to worry about... here is a useful chart, and instructions:
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Old 01-29-2006, 12:00 PM   #6
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Great stuff! How much adjustment do you think there is? 0.5 degrees?
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Old 01-29-2006, 12:04 PM   #7
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Alignment Kit

I have heard about camber bolts that you can get to make camber adjustments for the fronts. Don't know if they make them for E46. I think that these are for cars that have been lowered a lot or been in accidents and need to be adjusted.

Any one know more?
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Old 01-31-2006, 03:29 PM   #8
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Quote:
Originally Posted by gbn
Great stuff! How much adjustment do you think there is? 0.5 degrees?
For camber, you can probably go up to 1.5 degrees neg. camber in front, and up to 2.5 degrees neg. camber in rear with the stock components.

If you add camber plates up front, you can go up to 3.5 degrees neg. camber.
If you add camber arms in rear, you can go up to 3.5 degrees neg. camber.
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