Hi guys

I have been going through previous coolant threads but cant find me answer.

The plastic coolant bottle at the front near the rad is below the low level when cold, when the engine is cold where should the level be?

I have topped it up to the low level when it was cold but seem to have lost about 2cm from the marker after a couple of short runs in it, i have only had the car a couple of days.

I can hear a rushing water noise near the passenger footwell and from what i have read it may be because there is air in the system.

So i just need to know where the levels should be when hot and cold.

Thanks in advance