A4 2.4 v6 cabriolet losing water

[daplaya]

Hi all..

Just bought a 2.4 a week ago.. I'm having to top up my coolant like every 3 days.

Temp gauge us sitting just above 90..and now heater fans are blowing cold air..

Is not overheating and can't see no visible sign of where the water us going..

Any help would be appreciated.. Cheers