Right had a fettle at work
I've taken the wheel off and checked the hoses and pads,disc, h/brake cable etc.
My handbrake cable has been rubbing on the bottom suspension mounting and has worn through the plastic sleeving but can't see this leaking anything?
There are no leaks on the disc or pads and no leaks from any of the hoses.
Filled the reservoir back up and level hasn't dropped since.
Any ideas what I need to fix it as the nearest place with mk3 callipers is only open 'til 5 tommorow in Leeds which is gridlocked from the Leeds Festival and I work until 5.30
What's this bit?

and why would this leak? as this is where the brake fluid? drips from.

Thank You helpful forum people.