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Old 08-13-2008, 05:55 PM   #10
jpr
Registered User
 
Join Date: Aug 2005
Location: San Diego, CA
Posts: 3,005
My Ride: '99 323i
I think you'll find all you need to regarding alignments in general and ballasting in particular in this thread - http://forum.e46fanatics.com/showthread.php?t=416660 - the short answer is that you don't need the wieghts, but you should have the car in an easily repeatable condition and you'll need to put some windage on the alignment specs for which you are shooting.

On the subject of the steering angle sensor, the full discussion is here - http://forum.e46fanatics.com/showthread.php?t=436527 - the short answer is you don't need to worry about since the E46's do not have the active steering system.

As for whether to do the full or partial alignment, do the full one unless you really are tight on cash flow. I'm guessing it's been a while since you've done one so you might as get the whole car rebaselined. Plus with the full alignment you've got better odds of getting a tech who really knows what he is doing. If you're in a pinch for cash, take a good look at the wear pattern on your rear wheels, assuming you've got some respectable miles on the tires. So long as the outside edge wear is comparable to the inside edge and the LR pattern is similar to the RR pattern, you could reasonably defer the rear alignment until the next time you get new tires.
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