Thanks very much for your help

Yes, i've bled brakes a few times before using an Ezi-bleed, and I haven't crashed yet so I must be doing something right (touch wood) I always follow the correct sequence for bleeding brakes on any car...
And you are correct - One side has the nipple, the other one doesn't, so someone has obviously snapped it off....
Is it tricky to fit a new one? They don't need to be done in pairs do they?
Many thanks...