Background info here
http://www.e46fanatics.com/features/feature.php?news_id=40
Use this at your own risk. There might be better ways to do this, but this is what I did.
<p>1. If your car is lower you might need to use ramps to get the jack under the car.
<a href="http://www.e46fanatics.com/members/tim330i/poly/1.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_1.jpg"></a>
</p>
<p>2. Use a floor jack and the center jack point.
<a href="http://www.e46fanatics.com/members/tim330i/poly/2.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_2.jpg"></a>
</p>
<p>3. Put jack stands under the stock jack locations.
<a href="http://www.e46fanatics.com/members/tim330i/poly/3.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_3.jpg"></a>
</p>
<p>4. Remove the wheels.
<a href="http://www.e46fanatics.com/members/tim330i/poly/4.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_4.jpg"></a>
</p>
<p>5. Remove the under engine cover. There are some plastic plugs up front and screws underneath. The screw layout is going to vary depending on model.
<a href="http://www.e46fanatics.com/members/tim330i/poly/5.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_5.jpg"></a>
</p>
<p>6. Drop the engine cover.
<a href="http://www.e46fanatics.com/members/tim330i/poly/6.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_6.jpg"></a>
</p>
<p>7. Here you can see the both the control arm mounts
<a href="http://www.e46fanatics.com/members/tim330i/poly/7.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_7.jpg"></a>
</p>
<p>8. Drivers sides mount. You can see how the chassis brace is in the way of the rear bolt.
<a href="http://www.e46fanatics.com/members/tim330i/poly/8.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_8.jpg"></a>
</p>
<p>9. Remove the driver***8217;s side bolt for the rear brace.
<a href="http://www.e46fanatics.com/members/tim330i/poly/9.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_9.jpg"></a>
</p>
<p>10. Remove the front drivers side bolt for the brace.
<a href="http://www.e46fanatics.com/members/tim330i/poly/10.jpg"><img src="http://www.e46fanatics.com/members/tim330i/poly/tn_10.jpg"></a>
</p>