Mines was same as this mate....


For the last couple of years about every 3 or 4 months often when towing a trailer (which would probably be equivalent to giving it a thrashing) the car (4x4 saph cos) would overheat - particularly when stopped in traffic after a long run on the open road. There was always plenty of coolant - in fact it would be pushing it out of the top of the header bottle. After quite a while on the side of the road it would suddenly suck all the coolamt back into the engine and I would fill it up and away I would go and it would be alright for another couple of months.