Not necessarily. Any battery, even a good one, will slowly loose it's charge. Could be that something drained the battery. Clean the battery case and the posts. Slow charge the battery until it is full and then use it. You will soon know if it is good or not.
Yuor battery is leaking fluids or gases. The battery likely needs replaced.
Blown head gastet, radiator leaking, thermostat needs to be replaced Blown head gastet, radiator leaking, thermostat needs to be replaced
Because the battery is worn out and needs to be replaced for optimum performance.
your heater core is leaking. Needs to be replaced
The seals in the pump are leaking and the pump needs to be replaced.
If a battery is leaking, then it needs to be thrown away. The acid leaked can be very dangerous.
Your heater core is leaking. It needs repaired or replaced.
Because you have a seal that needs replaced. Some where on case causing it to leak gear lube.
The radiator will need to be replaced. Sometimes, it may seem that the radiator itself is leaking but it could be the radiator "hose" that is leaking. In this case, the radiator hose needs to be replaced and clamped tightly.
If your talking about coolant leaking on the passenger floor then it means your heater core is leaking and needs to be replaced.
the heater core is leaking and needs replaced
Needs the seals replaced