Recently I have started to notice that there's coolant (presumably) leaking from the engine. There's no obvious leak when you look at the engine from below right after you have driven it, but it leaves a puddle on the ground after it's been parked for several hours. The engine seems to be working fine, haven't had overheating issues, but I'm losing coolant and I'm afraid if I don't do something it will lead to bigger issues. Any ideas what could it be?
The car is 5 speed Holden Astra 2001 sedan The puddle on the ground http://design.imago.ee/test/auto2.JPG The place where it seems to be dripping from http://design.imago.ee/test/auto3.JPG