Life as we don't know it might not need water-
this on-line book has a chapters which discusses alternatives to water.
The Limits of Organic Life in Planetary Systems (check out chapter 6)
the rest of it is an interesting read too.
I think that much, perhaps most of the life in the universe might not use water as a primary solvent- particularly if that life has been created artificially and is robotic in nature.
On the other hand, true self-replicating robots might require water to reproduce- In fact they might be very similar to biologically evolved life in composition. The whole question of artificial self-replicating devices is still pretty much all speculation at the moment.