How does an allignment work, what is actually done?
 

Tomorrow I'm bringing in my car to have two new front tires put on and have an allignment done, since the last place that did my allignment screwed up. This makes we wonder, what is adjusted or worked on to move the suspension or wheel to get it corrected. Everytime I look at the suspension I don't see much or anything that can be adjusted, except maybe a tie-rod, so what is actually done?

I believe if you search the forum you will find ample info on this and also just search the web. I am no expert but basically there is caster, camber, toe-in, for both front and rear, and also thrust angle on the rear. Not all of these are always adjustable however. Some people seem to feel that it is an "art" where the results depend a lot on the tech doing it. This is probably true. Some people think they can try to do it themselves, and I have been trying my hand at my toe in, But it is picky work and probably best left to a competent professional.

Here is a good "primer" course on wheel alignment
CLICK ME

The for more specific MB stuff
CLICK ME

My experience is the following.

if your going to have your Mercedes aligned go to a dealer or a Mercedes SPECIALIST - and be sure the independent is not some fly by night operation but has the specific tools needed to do a Mercedes and has experience.

Prime yourself on Mercedes Benz style weights, they look good and work very well.
I've seen alignment specialist who say all they do are alignments and they can do Mercedes Benz and their computer has Mercedes Benz specs installed. I've seen them screw things up BAD.

Can you explain what you mean by weights?

Thanks,

Mike

PS: Those articles in the 3rd post look really good. Thanks.

the balance weights that clip onto the wheel.

I think they are two piece and like teflon coated or something.

they seem to protect the wheel and clip on securely