TD4 clutch bleed locknut/nipple

On the Bleed Nipple and the Locknut attached to the pipe. Should the Locknut by design be able to rotate or should it be static/Solidly locked against the pipe . (I know i need to keep it static with a spanner when bleeding) The reason behind the question is if the locknut should not rotate around the pipe, is it buggered and therefore leaking clutch oil?

Any help would be grateful. I think its the master cylinder leaking so will have to I believe replace that but am just wondering about the other end. The slave cylinder is brand new by the way as I had it replaced when the engine was out.

Thanks in advance

Certainly shouldn't turn easily but i think the plastic pipe is just shrunk on. When you've finished bleeding clean everything off and hold the clutch down and check for leaks from the joint.
Wedge the clutch pedal down with something against the seat and leave overnight if necessary.

Cheers for the advice.

Will try that tomorrow.

Just bled mine and the lock nut does turn by hand and doesn't leak.