Vandal.
First of all, get a new battery. Your old one is too dead to hold a charge.
Secondly, if this is the Punto with the 'girlie button' electric power steering, in this car it is not designed to be switched on constantly, only for parking. It is known to fail if left on constantly. I am told the Punto has really light steering anyway. If the warning light doesn't come on its a charging failure, which sounds likely.
If the alternator belt is slipping you should see it looking knackered and worn. If the bearings are failing, the belt may look fine. Use a stethoscope, or improvise something out of a long screwdriver to listen for grumbly bearings in the alternator.
V-L
There's no reason using the clutch should make an engine cut out, so I'm guessing its either a mechanical or electrical issue caused by pushing the pedal to the floor. Perhaps the pedal, perhaps the linkage. You are shorting something out, maybe, or something is physically moving just enough to cause a problem. Maybe there is some perished rubber which gets pulled or pushed and you get an air leak, or a lever which floods the engine?
Vandal.
First of all, get a new battery. Your old one is too dead to hold a charge.
Secondly, if this is the Punto with the 'girlie button' electric power steering, in this car it is not designed to be switched on constantly, only for parking. It is known to fail if left on constantly. I am told the Punto has really light steering anyway. If the warning light doesn't come on its a charging failure, which sounds likely.
If the alternator belt is slipping you should see it looking knackered and worn. If the bearings are failing, the belt may look fine. Use a stethoscope, or improvise something out of a long screwdriver to listen for grumbly bearings in the alternator.
V-L
There's no reason using the clutch should make an engine cut out, so I'm guessing its either a mechanical or electrical issue caused by pushing the pedal to the floor. Perhaps the pedal, perhaps the linkage. You are shorting something out, maybe, or something is physically moving just enough to cause a problem. Maybe there is some perished rubber which gets pulled or pushed and you get an air leak, or a lever which floods the engine?