What might cause infiniti g35 radiator leak?

If Your INFINITI G35 radiator is leaking there are usually a couple of reasons that it can happen. The first and most likely reason is from one of the radiator hoses. The radiator hoses connect to the radiator and the engine using clamps and if any of these come loose You will notice that there is a coolant leak. If these are okay then You may still need to inspect the hoses since they are rubber they may have dried out and cracked and are leaking. If none of those are the problem then it is possible that a seal on the radiator has failed and is leaking. If that is the case then You will need to replace it with a new unit since there is no good way to repair it permanently.