Solsdad

I haven't topped up at all yet, as the level is still between the min and max. 

There's a bit of steam at start up, but that clears once it's warmed up. 

I haven't noticed the temperature gauge go up, it does smell a bit hot sometimes.

One thing is that I haven't noticed the fan running at all, so I need to check it is coming on when it gets hot. 

It looks like the coolant in my 2007 V6 is occasionally overflowing. 

I have done a sniff test to try to rule out the head gasket, and that was negative. 

What else could cause the coolant to overflow?