CORSA 05 MANUAL TRANSMISSION FAILURE

My Corsa was repaired in the workshop for the Clutch system, it was changed paste and hydraulic collar. For 2 weeks it worked well now, half of the time the speeds enter well and other times not. The velocimeter does not work either and turns off when slowing down at 2nd speed. I suspect that the clutch system is incorrectly repaired. I am looking for the Manual for Corsa Sedan 2005, someone knows where to get it.

I imagine that what open you changed is the homocinetic joint on some side of the palier, if it is not the first time I hear that of the cluth, ... if it is what I say, perhaps when removing the stick it has thrown liquid from the box change, you will have to check the level, or if it is the appropriate valve the one that is thrown away, observe it and tell me if it enters it, well, the marches in cold. And the velocimetro is that the cable goes to the box change and when the mechanic has been able to leave or leave, the thing that goes out, I do not know what you mean if the engine is turned off the lights of the box or that .., that it seems that it has nothing to do with the other