a3 3.2 coolant leak

[bn9af]

noticed the coolant in my a3 3.2 (05 plate) has been leaking, only found a small puddle once but every week or so the warning light comes on. The puddle was just below the bottom right of the rad (as you look at it) but thats the to the undertray i cant get a good look at the rad.

If anyone has any suggestions of what is probably the cause please let me know!

going to service the car in about 2 months so will have a proper look then!

[Krakatoa]

Get it fixed quickly because a small leak can soon turn into blown head gasket if it decides to empty during a journey