Drinking too much
beer in Munich ;)
Join Date: Feb 2012
Location: I would rather not say
I did mine and didn't have spring compressors. I undid the forked yoke at the bottom of the strut to free it off the bottom arm, then I lowered the strut with the spring on and reached around it with a Torx socket on a short extension
Smarter people found you can get a suitably sized Torx spanner, to get access to the top bolts which hold the arm in place without having to undo the strut at all. The balljoint part is nothing to worry about, a regular joint splitter is good enough. Sometimes replacement arms have balljoints which should have the drilled hole down the shank formed with a hex profile so you can stop the ball from rotating by putting a hex key in it, but they don't always have it.
A simple trick is to use a regular nut to tighten the shank into the taper joint, then slowly loosen the nut and replace it with the locking nut.
I did mine in under an hour first time. It's very easy to replace the arm. I'll be buying the spanner for next time
There is talk about bushing kits becoming available, but haven't got experience of those myself.