I have an N reg Honda Civic 1.6 auto that is getting through loads of coolant, it has also broken the radiator cap assembly (springy bits etc) twice.

I stopped today to park and steam was coming from the front right of the car where the rad and coolant tank is, seems like the coolant is being blown out of the coolant reservoir from some sort of pressure build up. The car doesnt overheat or anything, just gets through coolant and radiator caps like anyones business.

No idea if the rad fan is working as I popped the bonnet when I got home while the engine was still running and it wasnt spinning.

Any pointer of what to look for would be appreciated.

Thanks