Nissab primastar 1996 1.9 diesel the clutch has a very low biting point and the peddle sticks on the return half way up. also promlem selecting the gears.

Hi Jon,
Have a look under the bonnet and find out if its the master or slave cylinder which is leaking? Which ever it is take a 10mm tight fitting spanner to the pipe and carefully loosen it. The flats on the connector damage easily, so don't let it slip! After removing the pipe connector let the brake fluid drain into a container. If its the master cylinder don't bend the pipe away, but loosen the securing nuts with a 12mm spanner and remove the cylinder, taking out the pipe at the same time. When fitting the replacement, mount the unit in place and attach the nuts loosely only to keep the unit in place but not secured. fit the pipe into the cylinder and using your fingers to tighten, not a spanner, screw it in. The connector can be easily cross threaded and if that happens it will leak and not be able to pressurize. Once the pipe has been fitted by hand, tighten the cylinder into place and then finish tightening the pipe with a spanner. Once completed open the bleeding nipple on the slave cylinder and fill the clutch reservoir with brake fluid. Let it drip out through nipple into a container. Once fluid has begun dripping tighten the bleed nipple. For the last part you'll need someone to assist you. Ask that person to sit inside the vehicle and press the clutch pedal to the floor and hold it there....Open and close the bleed nipple while the pedal is down and repeat until pressure has returned to normal. Job finished
Regards Johngee10