Someone commented on needing to compress the spring when replacing the lower control arm bushings, but I found that this job can be done in about 20 minutes a side.
I simply get the car up on axle stands, remove the wheel, position a jack with a chunk of wood under the inner control arm pivot, safety a tie-down to the outer control arm, remove the inner control arm bolt, slowly lower the inner control arm with the jack, insert only 1/4 inch of at leats a 2 foot pry bar into the inner bushing and pry it out, do same for other end (will be in 2 pieces), then orient the new bushings properly and press in with a c-clamp, then get car aligned.
The first side took me 1.5 hrs, then the second side took only 20 minutes with the right tools all set up and ready to go.
I haven't done ball joints on a Benz yet, but My right side Ball joint is beginning to show sitgns of wear, so I'll tackle those soon.
Have fun,
Adam Bush