Impreza WRX Overheating

[blueSL]

My 2005 WRX SportWagon has started overheating. The radiator took nearly 4 litres so presumably there's a leak somewhere, no heat from the heater, thermostatic cooling on.

Any thoughts or experience?

[blueSL]

Thanks, there is water leaking - got to be - but I cannot see from where, all looking a bit corroded. Car's done 120k miles and this is the first non-routine maintenance item it's needed so I'm not complaining.

Edited by blueSL on Sunday 26th October 15:58