First, all 4 wheels need to be off the ground, when the hydraulic pressure is lost, the car drops to the ground. First of all this is for safety, but second also because there will be a lot of fluid, if all wheels are off the ground most of the fluid are in the “shocks” and you will not have as much to get into a bucket.
The rear ones a located in the spare wheel compartment, but all connectors are under the car. Start with spraying all the bolts and nuts with some oil or whatever lubricant/rust desolver you have. We will start with the rear ones, passenger side (right) is easy:
Usually you will damage the pipe connectors very much since they are soft, I try first to loosen them, if not easy I make a cut with a Dremel over the thread of the sphere to make the thread “larger”. The spheres are never going to be used anyway. Trust me, you will otherwise damage the pipes.
Then there is the bleeding, while you wait for it to stop, losen the Three nuts that holds the sphere in place. Then you can start removing the rear silencer, getting access to the rear drivers side (left) without doing this is possible, but I wouldn’t do it.
Here is the left one with the cut I made to be able to remove the connector without causing to much damage:
Once all the nuts are gone, get the spare wheel out and you can easily remove the spheres:
New spheres in place:
And everything mounted, I sprayed it with some bodyspray just to make the connector easy to remove next time: