Mags

Thank you very much.

I went out to my car yesterday and tried to open it with the key fob, nothing happened I discovered that the car was unlocked. When I tried to start it, lights flashed and it started clicking, this happened a couple of times then it went completely blank no flashing or clicking. Would this be caused if the battery drained and could it be cured if I get a jump start? My car is a 56 plate Passat