My clutch is slipping a little when the turbo comes in but then catches and also the pressure is building up and need to release the pressure out of the bleeding nipple every two days had a new flexy pipe but still no joy

check the clutch master cylinder for a blocked compensating port. this will hold the clutch off as the pressure in the clutch line is not releasing back to the reservoir. if you have a cable clutch then replace the cable as it is binding up inside.
i would change the clutch master cylinder if hydraulic.

You need a new clutch. The clutch disc has worn out, now it's slipping on the flywheel. Clutch kit: new pressure plate, new clutch disc, new clutch release bearing, and new crankshaft pilot bushing- about $150-200, somewhere in that range..

THe problem can only really be with the clutch master cylinder. What you describe sounds like the master cylinder is not relieving pressure and this is building up in the salve cylinder, applying pressure to the pressure place and causing the clutch to slip. Can you make the problem go away even temporarily, if you open the bleed screw on the slave cylinder? You say that the free play is correct, but is the master cylinder returning fully to its released position?

Bleed the clutch cylinder

If your clutch won't release properly, it will continue to turn the input shaft. This can cause grinding, or completely prevent your car from going into gear. Some common reasons a clutch may stick are:

• Broken or stretched clutch cable - The cable needs the right amount of tension to push and pull effectively.
• Leaky or defective slave and/or master clutch cylinders - Leaks keep the cylinders from building the necessary amount of pressure.
• Air in the hydraulic line - Air affects the hydraulics by taking up space the fluid needs to build pressure.
• Misadjusted linkage - When your foot hits the pedal, the linkage transmits the wrong amount of force.
• Mismatched clutch components - Not all aftermarket parts work with your clutch.

Another problem associated with clutches is a worn throw-out bearing, sometimes called a clutch release bearing. This bearing applies force to the fingers of the spinning pressure plate to release the clutch. If you hear a rumbling sound when the clutch engages, you might have a problem with the throw-out.

I have the same problem with my 2001 volkswagen cabrio, but I know the solution.
You need a new clutch, or it will continue to slip.
If you cannot afford the clutch. You can "baby" the clutch by easing the clutch out, and eventually it will catch. (It should catch in a second or two.)

you need a new clutch

Manual transmissions do not slip ie. when the gears mesh, there is no slip unless they strip out and make an awful noise and will not pull henceforth.

You probably still have a slipping clutch plate against the flywheel. You need to adjust the clutch petal linkage shaft to allow the pressure plate to be release from the thrust bearing, ie shorten the shaft length.. If you and most likely you do just have the clutch release slave cylinder that releases the clutch when you apply the petal. You need to bleed the slave cylinder of any excess fluid or air that may have entered the line if you opened it at any point. You need to bleed it as you would a break cylinder and this should fix ya.
good luck.
good luck

This is not the turbo it is the over-powering the clutch, it happens in 5th because that is when most worn clutches slip, it is the biggest load, replace your clutch.